Compile Bitcoin Core from Source on Ubuntu - Bitzuma
Compile Bitcoin Core from Source on Ubuntu - Bitzuma
bitcoin/build-windows.md at master · bitcoin/bitcoin · GitHub
Install Bitcoin wallet on Ubuntu 16.04 - FSB
Build Bitcoin From Source Ubuntu - FEDEC
ubuntu - How do I build Bitcoin from source in Linux ...
Make your own stakebox. Ultimate beginners guide how to compile any wallet on AARCH64 (Raspbery pi and other SBC)
I contemplated to wrote this for a long time, so it's finally time. As you know a lot of altcoins uses PoS (Proof-of-stake) way of "mining" coins. Which basically means, that you hold coins on your unlocked wallet and you are receiving stakes as a reward. This requires very little power and it can bring you a lot of rewards, at just 10W from the wall. So first I am using latest Raspbian on RPI4B 4GB in this example.Setting up Raspbian is not part of this process since it's very well documented. I recommend to change user from pi to something else due to security concerns and you can also do other stuff just search "security Raspberry PI" and you find a lot of articles, but this is not the focus of this guide. I know there are a lot of guides on the internet, but I am using like 5 sources, so it's compiled what other people wrote and some of my research. I am using AnyDesk insted of SSH or VNC server, because it works it's ligthweit and it just works. So after you see the gui of Raspbian, just launch terminal (CTRL + ALT + T) and do basic thing: sudo apt-get update && sudo apt-get upgrade Than press Y and let it run, after is finished, we need to prepare so dependency packages. Since most of the wallets using Berkeley DB 4.8 we need to obtain it. So in terminal wrote:
cd cd Downloads wget http://download.oracle.com/berkeley-db/db-4.8.30.NC.tar.gz tar -xzvf db-4.8.30.NC.tar.gz cd db-4.8.30.NC/build_unix ../dist/configure --enable-cxx make sudo make install
So wait unti it's finished and than you can delete files in Downloads folder in gui or use:
Watch the output folder which it creates, it's stated in the first two lines and copy then by highliting the text and CTRL+SHIFT+C copy it to your clipboard.
cd Streamies (this is that git created folder) ./autogen.sh ./configure CPPFLAGS="-I/uslocal/BerkeleyDB.4.8/include -O2" LDFLAGS="-L/uslocal/BerkeleyDB.4.8/lib" sudo make (this could take hours) sudo make install
And you are done, files is going to be in folder /uslocal/bin (DO NOT delete git created folder, because you are going to need it for faster compiling, when wallet get's and update.)
Now you can list files by:
And then you can copy/move them where ever you want by using:
sudo mv * [destination full path]
Let it run and go back to folder where you move those files.
sudo chmod +x streamies-qt (since we want to run wallet)
In most cases compiled files are going to in format of "shared library" so we need to create script to run it. Open up a text editor from gui or through nano. And paste this to that file:
And save it as a sh file, for example run.sh. Then we need to make it runnable so:
sudo chmod +x run.sh
Now to run it, it's just:
And here we are glorious GUI wallet appears and you are done, you can paste blockchain, wallet.dat from other sources, so this migration is pretty easy and you, if you have it on for exaple flash disk. So this is basic how to compile QT wallets on AARCH64. I am running 7 wallets, 2 of those are Masternodes and RPI 4B 4GB would handle way more, I am at best on half of my RAM. Some wallets need more package, but it's not much of and issue, since compiling stops and you just copy paste nape which is missing put it in the google and add "apt-get" after the name of package and you are going to see, what is the name of the packages so it can be retreived from package assinstant aka apt-get. So basically:
sudo apt-get install [package name]
Then press y and again wrote:
This process is going to continue where it was left off, so nothing is going to run from beginning. Updating wallets is basically exactly same, just repeat steps from "git clone" and after that proceed as it was written above. So I hope this helps some of you, to use this at home and not on some VPS, if you are anxious as me, to host my wallets on remote server.
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Dear Groestlers, it goes without saying that 2020 has been a difficult time for millions of people worldwide. The groestlcoin team would like to take this opportunity to wish everyone our best to everyone coping with the direct and indirect effects of COVID-19. Let it bring out the best in us all and show that collectively, we can conquer anything. The centralised banks and our national governments are facing unprecedented times with interest rates worldwide dropping to record lows in places. Rest assured that this can only strengthen the fundamentals of all decentralised cryptocurrencies and the vision that was seeded with Satoshi's Bitcoin whitepaper over 10 years ago. Despite everything that has been thrown at us this year, the show must go on and the team will still progress and advance to continue the momentum that we have developed over the past 6 years. In addition to this, we'd like to remind you all that this is Groestlcoin's 6th Birthday release! In terms of price there have been some crazy highs and lows over the years (with highs of around $2.60 and lows of $0.000077!), but in terms of value– Groestlcoin just keeps getting more valuable! In these uncertain times, one thing remains clear – Groestlcoin will keep going and keep innovating regardless. On with what has been worked on and completed over the past few months.
UPDATED - Groestlcoin Core 2.18.2
This is a major release of Groestlcoin Core with many protocol level improvements and code optimizations, featuring the technical equivalent of Bitcoin v0.18.2 but with Groestlcoin-specific patches. On a general level, most of what is new is a new 'Groestlcoin-wallet' tool which is now distributed alongside Groestlcoin Core's other executables. NOTE: The 'Account' API has been removed from this version which was typically used in some tip bots. Please ensure you check the release notes from 2.17.2 for details on replacing this functionality.
Builds are now done through Gitian
Calls to getblocktemplate will fail if the segwit rule is not specified. Calling getblocktemplate without segwit specified is almost certainly a misconfiguration since doing so results in lower rewards for the miner. Failed calls will produce an error message describing how to enable the segwit rule.
A warning is printed if an unrecognized section name is used in the configuration file. Recognized sections are [test], [main], and [regtest].
Four new options are available for configuring the maximum number of messages that ZMQ will queue in memory (the "high water mark") before dropping additional messages. The default value is 1,000, the same as was used for previous releases.
The rpcallowip option can no longer be used to automatically listen on all network interfaces. Instead, the rpcbind parameter must be used to specify the IP addresses to listen on. Listening for RPC commands over a public network connection is insecure and should be disabled, so a warning is now printed if a user selects such a configuration. If you need to expose RPC in order to use a tool like Docker, ensure you only bind RPC to your localhost, e.g. docker run [...] -p 127.0.0.1:1441:1441 (this is an extra :1441 over the normal Docker port specification).
The rpcpassword option now causes a startup error if the password set in the configuration file contains a hash character (#), as it's ambiguous whether the hash character is meant for the password or as a comment.
The whitelistforcerelay option is used to relay transactions from whitelisted peers even when not accepted to the mempool. This option now defaults to being off, so that changes in policy and disconnect/ban behavior will not cause a node that is whitelisting another to be dropped by peers.
A new short about the JSON-RPC interface describes cases where the results of anRPC might contain inconsistencies between data sourced from differentsubsystems, such as wallet state and mempool state.
A new document introduces Groestlcoin Core's BIP174 interface, which is used to allow multiple programs to collaboratively work to create, sign, and broadcast new transactions. This is useful for offline (cold storage) wallets, multisig wallets, coinjoin implementations, and many other cases where two or more programs need to interact to generate a complete transaction.
The output script descriptor (https://github.com/groestlcoin/groestlcoin/blob/mastedoc/descriptors.md) documentation has been updated with information about new features in this still-developing language for describing the output scripts that a wallet or other program wants to receive notifications for, such as which addresses it wants to know received payments. The language is currently used in multiple new and updated RPCs described in these release notes and is expected to be adapted to other RPCs and to the underlying wallet structure.
A new --disable-bip70 option may be passed to ./configure to prevent Groestlcoin-Qt from being built with support for the BIP70 payment protocol or from linking libssl. As the payment protocol has exposed Groestlcoin Core to libssl vulnerabilities in the past, builders who don't need BIP70 support are encouraged to use this option to reduce their exposure to future vulnerabilities.
The minimum required version of Qt (when building the GUI) has been increased from 5.2 to 5.5.1 (the depends system provides 5.9.7)
getnodeaddresses returns peer addresses known to this node. It may be used to find nodes to connect to without using a DNS seeder.
listwalletdir returns a list of wallets in the wallet directory (either the default wallet directory or the directory configured bythe -walletdir parameter).
getrpcinfo returns runtime details of the RPC server. Currently, it returns an array of the currently active commands and how long they've been running.
deriveaddresses returns one or more addresses corresponding to an output descriptor.
getdescriptorinfo accepts a descriptor and returns information aboutit, including its computed checksum.
joinpsbts merges multiple distinct PSBTs into a single PSBT. The multiple PSBTs must have different inputs. The resulting PSBT will contain every input and output from all the PSBTs. Any signatures provided in any of the PSBTs will be dropped.
analyzepsbt examines a PSBT and provides information about what the PSBT contains and the next steps that need to be taken in order to complete the transaction. For each input of a PSBT, analyze psbt provides information about what information is missing for that input, including whether a UTXO needs to be provided, what pubkeys still need to be provided, which scripts need to be provided, and what signatures are still needed. Every input will also list which role is needed to complete that input, and analyzepsbt will also list the next role in general needed to complete the PSBT. analyzepsbt will also provide the estimated fee rate and estimated virtual size of the completed transaction if it has enough information to do so.
utxoupdatepsbt searches the set of Unspent Transaction Outputs (UTXOs) to find the outputs being spent by the partial transaction. PSBTs need to have the UTXOs being spent to be provided because the signing algorithm requires information from the UTXO being spent. For segwit inputs, only the UTXO itself is necessary. For non-segwit outputs, the entire previous transaction is needed so that signers can be sure that they are signing the correct thing. Unfortunately, because the UTXO set only contains UTXOs and not full transactions, utxoupdatepsbt will only add the UTXO for segwit inputs.
getpeerinfo now returns an additional minfeefilter field set to the peer's BIP133 fee filter. You can use this to detect that you have peers that are willing to accept transactions below the default minimum relay fee.
The mempool RPCs, such as getrawmempool with verbose=true, now return an additional "bip125-replaceable" value indicating whether thetransaction (or its unconfirmed ancestors) opts-in to asking nodes and miners to replace it with a higher-feerate transaction spending any of the same inputs.
settxfee previously silently ignored attempts to set the fee below the allowed minimums. It now prints a warning. The special value of"0" may still be used to request the minimum value.
getaddressinfo now provides an ischange field indicating whether the wallet used the address in a change output.
importmulti has been updated to support P2WSH, P2WPKH, P2SH-P2WPKH, and P2SH-P2WSH. Requests for P2WSH and P2SH-P2WSH accept an additional witnessscript parameter.
importmulti now returns an additional warnings field for each request with an array of strings explaining when fields are being ignored or are inconsistent, if there are any.
getaddressinfo now returns an additional solvable Boolean field when Groestlcoin Core knows enough about the address's scriptPubKey, optional redeemScript, and optional witnessScript for the wallet to be able to generate an unsigned input spending funds sent to that address.
The getaddressinfo, listunspent, and scantxoutset RPCs now return an additional desc field that contains an output descriptor containing all key paths and signing information for the address (except for the private key). The desc field is only returned for getaddressinfo and listunspent when the address is solvable.
importprivkey will preserve previously-set labels for addresses or public keys corresponding to the private key being imported. For example, if you imported a watch-only address with the label "coldwallet" in earlier releases of Groestlcoin Core, subsequently importing the private key would default to resetting the address's label to the default empty-string label (""). In this release, the previous label of "cold wallet" will be retained. If you optionally specify any label besides the default when calling importprivkey, the new label will be applied to the address.
getmininginfo now omits currentblockweight and currentblocktx when a block was never assembled via RPC on this node.
The getrawtransaction RPC & REST endpoints no longer check the unspent UTXO set for a transaction. The remaining behaviors are as follows:
If a blockhash is provided, check the corresponding block.
If no blockhash is provided, check the mempool.
If no blockhash is provided but txindex is enabled, also check txindex.
unloadwallet is now synchronous, meaning it will not return until the wallet is fully unloaded.
importmulti now supports importing of addresses from descriptors. A desc parameter can be provided instead of the "scriptPubKey" in are quest, as well as an optional range for ranged descriptors to specify the start and end of the range to import. Descriptors with key origin information imported through importmulti will have their key origin information stored in the wallet for use with creating PSBTs.
listunspent has been modified so that it also returns witnessScript, the witness script in the case of a P2WSH orP2SH-P2WSH output.
createwallet now has an optional blank argument that can be used to create a blank wallet. Blank wallets do not have any keys or HDseed. They cannot be opened in software older than 2.18.2. Once a blank wallet has a HD seed set (by using sethdseed) or private keys, scripts, addresses, and other watch only things have been imported, the wallet is no longer blank and can be opened in 2.17.2. Encrypting a blank wallet will also set a HD seed for it.
signrawtransaction is removed after being deprecated and hidden behind a special configuration option in version 2.17.2.
The 'account' API is removed after being deprecated in v2.17.2 The 'label' API was introduced in v2.17.2 as a replacement for accounts. See the release notes from v2.17.2 for a full description of the changes from the 'account' API to the 'label' API.
addwitnessaddress is removed after being deprecated in version 2.16.0.
generate is deprecated and will be fully removed in a subsequent major version. This RPC is only used for testing, but its implementation reached across multiple subsystems (wallet and mining), so it is being deprecated to simplify the wallet-node interface. Projects that are using generate for testing purposes should transition to using the generatetoaddress RPC, which does not require or use the wallet component. Calling generatetoaddress with an address returned by the getnewaddress RPC gives the same functionality as the old generate RPC. To continue using generate in this version, restart groestlcoind with the -deprecatedrpc=generate configuration option.
Be reminded that parts of the validateaddress command have been deprecated and moved to getaddressinfo. The following deprecated fields have moved to getaddressinfo: ismine, iswatchonly,script, hex, pubkeys, sigsrequired, pubkey, embedded,iscompressed, label, timestamp, hdkeypath, hdmasterkeyid.
The addresses field has been removed from the validateaddressand getaddressinfo RPC methods. This field was confusing since it referred to public keys using their P2PKH address. Clients should use the embedded.address field for P2SH or P2WSH wrapped addresses, and pubkeys for inspecting multisig participants.
A new /rest/blockhashbyheight/ endpoint is added for fetching the hash of the block in the current best blockchain based on its height (how many blocks it is after the Genesis Block).
A new Window menu is added alongside the existing File, Settings, and Help menus. Several items from the other menus that opened new windows have been moved to this new Window menu.
In the Send tab, the checkbox for "pay only the required fee" has been removed. Instead, the user can simply decrease the value in the Custom Fee rate field all the way down to the node's configured minimumrelay fee.
In the Overview tab, the watch-only balance will be the only balance shown if the wallet was created using the createwallet RPC and thedisable_private_keys parameter was set to true.
The launch-on-startup option is no longer available on macOS if compiled with macosx min version greater than 10.11 (useCXXFLAGS="-mmacosx-version-min=10.11" CFLAGS="-mmacosx-version-min=10.11" for setting the deployment sdkversion)
A new groestlcoin-wallet tool is now distributed alongside Groestlcoin Core's other executables. Without needing to use any RPCs, this tool can currently create a new wallet file or display some basic information about an existing wallet, such as whether the wallet is encrypted, whether it uses an HD seed, how many transactions it contains, and how many address book entries it has.
Since version 2.16.0, Groestlcoin Core's built-in wallet has defaulted to generating P2SH-wrapped segwit addresses when users want to receive payments. These addresses are backwards compatible with all widely used software. Starting with Groestlcoin Core 2.20.1 (expected about a year after 2.18.2), Groestlcoin Core will default to native segwitaddresses (bech32) that provide additional fee savings and other benefits. Currently, many wallets and services already support sending to bech32 addresses, and if the Groestlcoin Core project sees enough additional adoption, it will instead default to bech32 receiving addresses in Groestlcoin Core 2.19.1. P2SH-wrapped segwit addresses will continue to be provided if the user requests them in the GUI or by RPC, and anyone who doesn't want the update will be able to configure their default address type. (Similarly, pioneering users who want to change their default now may set the addresstype=bech32 configuration option in any Groestlcoin Core release from 2.16.0 up.)
BIP 61 reject messages are now deprecated. Reject messages have no use case on the P2P network and are only logged for debugging by most network nodes. Furthermore, they increase bandwidth and can be harmful for privacy and security. It has been possible to disable BIP 61 messages since v2.17.2 with the -enablebip61=0 option. BIP 61 messages will be disabled by default in a future version, before being removed entirely.
The submitblock RPC previously returned the reason a rejected block was invalid the first time it processed that block but returned a generic "duplicate" rejection message on subsequent occasions it processed the same block. It now always returns the fundamental reason for rejecting an invalid block and only returns "duplicate" for valid blocks it has already accepted.
A new submitheader RPC allows submitting block headers independently from their block. This is likely only useful for testing.
The signrawtransactionwithkey and signrawtransactionwithwallet RPCs have been modified so that they also optionally accept a witnessScript, the witness script in the case of a P2WSH orP2SH-P2WSH output. This is compatible with the change to listunspent.
For the walletprocesspsbt and walletcreatefundedpsbt RPCs, if thebip32derivs parameter is set to true but the key metadata for a public key has not been updated yet, then that key will have a derivation path as if it were just an independent key (i.e. no derivation path and its master fingerprint is itself).
The -usehd configuration option was removed in version 2.16.0 From that version onwards, all new wallets created are hierarchical deterministic wallets. This release makes specifying -usehd an invalid configuration option.
This release allows peers that your node automatically disconnected for misbehaviour (e.g. sending invalid data) to reconnect to your node if you have unused incoming connection slots. If your slots fill up, a misbehaving node will be disconnected to make room for nodes without a history of problems (unless the misbehaving node helps your node in some other way, such as by connecting to a part of the Internet from which you don't have many other peers). Previously, Groestlcoin Core banned the IP addresses of misbehaving peers for a period (default of 1 day); this was easily circumvented by attackers with multiple IP addresses. If you manually ban a peer, such as by using the setban RPC, all connections from that peer will still be rejected.
The key metadata will need to be upgraded the first time that the HDseed is available. For unencrypted wallets this will occur on wallet loading. For encrypted wallets this will occur the first time the wallet is unlocked.
Newly encrypted wallets will no longer require restarting the software. Instead such wallets will be completely unloaded and reloaded to achieve the same effect.
A sub-project of Bitcoin Core now provides Hardware Wallet Interaction (HWI) scripts that allow command-line users to use several popular hardware key management devices with Groestlcoin Core. See their project page for details.
This release changes the Random Number Generator (RNG) used from OpenSSL to Groestlcoin Core's own implementation, although entropy gathered by Groestlcoin Core is fed out to OpenSSL and then read back in when the program needs strong randomness. This moves Groestlcoin Core a little closer to no longer needing to depend on OpenSSL, a dependency that has caused security issues in the past. The new implementation gathers entropy from multiple sources, including from hardware supporting the rdseed CPU instruction.
On macOS, Groestlcoin Core now opts out of application CPU throttling ("app nap") during initial blockchain download, when catching up from over 100 blocks behind the current chain tip, or when reindexing chain data. This helps prevent these operations from taking an excessively long time because the operating system is attempting to conserve power.
How to Upgrade?
Windows If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older versions), then run the installer. OSX If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older versions), run the dmg and drag Groestlcoin Core to Applications. Ubuntu http://groestlcoin.org/forum/index.php?topic=441.0
ALL NEW - Groestlcoin Moonshine iOS/Android Wallet
Built with React Native, Moonshine utilizes Electrum-GRS's JSON-RPC methods to interact with the Groestlcoin network. GRS Moonshine's intended use is as a hot wallet. Meaning, your keys are only as safe as the device you install this wallet on. As with any hot wallet, please ensure that you keep only a small, responsible amount of Groestlcoin on it at any given time.
Groestlcoin Mainnet & Testnet supported
Multiple wallet support
Electrum - Support for both random and custom peers
Biometric + Pin authentication
Custom fee selection
Import mnemonic phrases via manual entry or scanning
BIP39 Passphrase functionality
Support for Segwit-compatible & legacy addresses in settings
Support individual private key sweeping
UTXO blacklisting - Accessible via the Transaction Detail view, this allows users to blacklist any utxo that they do not wish to include in their list of available utxo's when sending transactions. Blacklisting a utxo excludes its amount from the wallet's total balance.
Ability to Sign & Verify Messages
Support BitID for password-free authentication
Coin Control - This can be accessed from the Send Transaction view and basically allows users to select from a list of available UTXO's to include in their transaction.
HODL GRS connects directly to the Groestlcoin network using SPV mode and doesn't rely on servers that can be hacked or disabled. HODL GRS utilizes AES hardware encryption, app sandboxing, and the latest security features to protect users from malware, browser security holes, and even physical theft. Private keys are stored only in the secure enclave of the user's phone, inaccessible to anyone other than the user. Simplicity and ease-of-use is the core design principle of HODL GRS. A simple recovery phrase (which we call a Backup Recovery Key) is all that is needed to restore the user's wallet if they ever lose or replace their device. HODL GRS is deterministic, which means the user's balance and transaction history can be recovered just from the backup recovery key.
Simplified payment verification for fast mobile performance
Groestlcoin Seed Savior is a tool for recovering BIP39 seed phrases. This tool is meant to help users with recovering a slightly incorrect Groestlcoin mnemonic phrase (AKA backup or seed). You can enter an existing BIP39 mnemonic and get derived addresses in various formats. To find out if one of the suggested addresses is the right one, you can click on the suggested address to check the address' transaction history on a block explorer.
If a word is wrong, the tool will try to suggest the closest option.
If a word is missing or unknown, please type "?" instead and the tool will find all relevant options.
NOTE: NVidia GPU or any CPU only. AMD graphics cards will not work with this address generator. VanitySearch is a command-line Segwit-capable vanity Groestlcoin address generator. Add unique flair when you tell people to send Groestlcoin. Alternatively, VanitySearch can be used to generate random addresses offline. If you're tired of the random, cryptic addresses generated by regular groestlcoin clients, then VanitySearch is the right choice for you to create a more personalized address. VanitySearch is a groestlcoin address prefix finder. If you want to generate safe private keys, use the -s option to enter your passphrase which will be used for generating a base key as for BIP38 standard (VanitySearch.exe -s "My PassPhrase" FXPref). You can also use VanitySearch.exe -ps "My PassPhrase" which will add a crypto secure seed to your passphrase. VanitySearch may not compute a good grid size for your GPU, so try different values using -g option in order to get the best performances. If you want to use GPUs and CPUs together, you may have best performances by keeping one CPU core for handling GPU(s)/CPU exchanges (use -t option to set the number of CPU threads).
Fixed size arithmetic
Fast Modular Inversion (Delayed Right Shift 62 bits)
SecpK1 Fast modular multiplication (2 steps folding 512bits to 256bits using 64 bits digits)
Use some properties of elliptic curve to generate more keys
SSE Secure Hash Algorithm SHA256 and RIPEMD160 (CPU)
Groestlcoin EasyVanity 2020 is a windows app built from the ground-up and makes it easier than ever before to create your very own bespoke bech32 address(es) when whilst not connected to the internet. If you're tired of the random, cryptic bech32 addresses generated by regular Groestlcoin clients, then Groestlcoin EasyVanity2020 is the right choice for you to create a more personalised bech32 address. This 2020 version uses the new VanitySearch to generate not only legacy addresses (F prefix) but also Bech32 addresses (grs1 prefix).
Ability to continue finding keys after first one is found
Includes warning on start-up if connected to the internet
Ability to output keys to a text file (And shows button to open that directory)
Show and hide the private key with a simple toggle switch
Show full output of commands
Ability to choose between Processor (CPU) and Graphics Card (GPU) ( NVidia ONLY! )
Features both a Light and Dark Material Design-Style Themes
Free software - MIT. Anyone can audit the code.
Written in C# - The code is short, and easy to review.
Groestlcoin WPF is an alternative full node client with optional lightweight 'thin-client' mode based on WPF. Windows Presentation Foundation (WPF) is one of Microsoft's latest approaches to a GUI framework, used with the .NET framework. Its main advantages over the original Groestlcoin client include support for exporting blockchain.dat and including a lite wallet mode. This wallet was previously deprecated but has been brought back to life with modern standards.
Works via TOR or SOCKS5 proxy
Can use bootstrap.dat format as blockchain database
Import/Export blockchain to/from bootstrap.dat
Import wallet.dat from Groestlcoin-qt wallet
Export wallet to wallet.dat
Use both groestlcoin-wpf and groestlcoin-qt with the same addresses in parallel. When you send money from one program, the transaction will automatically be visible on the other wallet.
Rescan blockchain with a simple mouse click
Works as a full node and listens to port 1331 (listening port can be changed)
Fast Block verifying, parallel processing on multi-core CPUs
Mine Groestlcoins with your CPU by a simple mouse click
All private keys are kept encrypted on your local machine (or on a USB stick)
Lite - Has a lightweight "thin client" mode which does not require a new user to download the entire Groestlcoin chain and store it
Free and decentralised - Open Source under GNU license
Fixed Import/Export to wallet.dat
Rescan wallet option
Change wallet password option
Address type and Change type options through *.conf file
Import from bootstrap.dat - It is a flat, binary file containing Groestlcoin blockchain data, from the genesis block through a recent height. All versions automatically validate and import the file "grs.bootstrap.dat" in the GRS directory. Grs.bootstrap.dat is compatible with Qt wallet. GroestlCoin-Qt can load from it.
In Full mode file %APPDATA%\Groestlcoin-WPF\GRS\GRS.bootstrap.dat is full blockchain in standard bootstrap.dat format and can be used with other clients.
Groestlcoin Electrum Personal Server aims to make using Electrum Groestlcoin wallet more secure and more private. It makes it easy to connect your Electrum-GRS wallet to your own full node. It is an implementation of the Electrum-grs server protocol which fulfils the specific need of using the Electrum-grs wallet backed by a full node, but without the heavyweight server backend, for a single user. It allows the user to benefit from all Groestlcoin Core's resource-saving features like pruning, blocks only and disabled txindex. All Electrum-GRS's feature-richness like hardware wallet integration, multi-signature wallets, offline signing, seed recovery phrases, coin control and so on can still be used, but connected only to the user's own full node. Full node wallets are important in Groestlcoin because they are a big part of what makes the system be trust-less. No longer do people have to trust a financial institution like a bank or PayPal, they can run software on their own computers. If Groestlcoin is digital gold, then a full node wallet is your own personal goldsmith who checks for you that received payments are genuine. Full node wallets are also important for privacy. Using Electrum-GRS under default configuration requires it to send (hashes of) all your Groestlcoin addresses to some server. That server can then easily spy on your transactions. Full node wallets like Groestlcoin Electrum Personal Server would download the entire blockchain and scan it for the user's own addresses, and therefore don't reveal to anyone else which Groestlcoin addresses they are interested in. Groestlcoin Electrum Personal Server can also broadcast transactions through Tor which improves privacy by resisting traffic analysis for broadcasted transactions which can link the IP address of the user to the transaction. If enabled this would happen transparently whenever the user simply clicks "Send" on a transaction in Electrum-grs wallet. Note: Currently Groestlcoin Electrum Personal Server can only accept one connection at a time.
Use your own node
Uses less CPU and RAM than ElectrumX
Used intermittently rather than needing to be always-on
Doesn't require an index of every Groestlcoin address ever used like on ElectrumX
UPDATED – Android Wallet 7.38.1 - Main Net + Test Net
The app allows you to send and receive Groestlcoin on your device using QR codes and URI links. When using this app, please back up your wallet and email them to yourself! This will save your wallet in a password protected file. Then your coins can be retrieved even if you lose your phone.
Add confidence messages, helping users to understand the confidence state of their payments.
Handle edge case when restoring via an external app.
Count devices with a memory class of 128 MB as low ram.
Introduce dark mode on Android 10 devices.
Reduce memory usage of PIN-protected wallets.
Tapping on the app's version will reveal a checksum of the APK that was installed.
Fix issue with confirmation of transactions that empty your wallet.
Groestlcoin Sentinel is a great solution for anyone who wants the convenience and utility of a hot wallet for receiving payments directly into their cold storage (or hardware wallets). Sentinel accepts XPUB's, YPUB'S, ZPUB's and individual Groestlcoin address. Once added you will be able to view balances, view transactions, and (in the case of XPUB's, YPUB's and ZPUB's) deterministically generate addresses for that wallet. Groestlcoin Sentinel is a fork of Groestlcoin Samourai Wallet with all spending and transaction building code removed.
[IDEA] [PROPOSAL] Monero Debian (deb) packages / Debian package repository deb.getmonero.org (I can do)
I have the skills to implement this if wanted. Possible User Experience This is a proposal, i.e. not implemented yet. Instructions for users, simplified. How to install monero using apt-get Download the repository signing key. wget https://www.getmonero.org/monero.asc Add the signing key. sudo apt-key --keyring /etc/apt/trusted.gpg.d/monero.gpg add ~/monero.asc Add APT repository. echo "deb https://deb.getmonero.org buster main" | sudo tee /etc/apt/sources.list.d/monero.list Update your package lists. sudo apt-get update Install monero. sudo apt-get install monero A few technical implementation details I would simply grab the binaries provided by getmonero.org, download them, check software (gpg) signatures, put these into deb packages, add these to a repository, and upload the repository. What I would not do is creating the binaries during package creation. While this is nice to have, it doesn't help user experience and blocks the progress on reaching this goal. See next chapter. Why simply put the pre-build Monero binaries into a deb package? 1) After bitcoin existing for more than 10 years, being popular and being in Debian unstable (sid) it still never made its way into Debian testing, let alone stable. Reason being explained that a difference in underlying libraries (even just security fixes) during compilation may result in a network split. Binaries compiled during packaging on different versions of Linux distributions might have different libraries that might cause a network fork / chain split. References:
(Note: above website saying Tags: fixed-upstream is probably a mistake as discussion at bottom says.) 2) The github issue of packaging monero stalled. 3) By shipping the same binaries as provided by getmonero.org reduces the chances of introducing a backdoor. Many Options
By adding Monero to Whonix repository, a effort for creating a separate Monero repository could be saved. I.e. instead of deb https://deb.getmonero.org buster main users could do deb https://deb.whonix.org buster main. It's really just about the upload location. By providing DNS, even upload to Whonix server can offer https://deb.getmonero.org.
Either I create the build instructions and source code of this implementation (Debian package and repository creation) the long term maintenance of putting new binaries into updated packages or only create build instructions and source code and someone from Monero team could create the actual deb packages and deb repository.
gpg signed debs. Either gpg signed debs or an apt repository. Or both. Your choice.
I'd start with Debian and perhaps Ubuntu packages for 64bit. Perhaps also 32bit. Potentially I could also do packaging for Feodra based distributions.
Timeline Doable quickly. The electrum (bitcoin) AppImage was recently added to a Debian package (binaries-freedom) by me and is now easily installable in Whonix. Pre-installed in testers version of Whonix already. About Me I am the founder of Whonix, which I am maintaining at present for more than 7 years. Whonix (formerly TorBOX) is a Debian GNU/Linux–based security-focused Linux distribution. It aims to provide privacy, security and anonymity on the internet. You can see an overview of packages I am maintaining on my github profile. To proof that this forum account adrelanos corresponds the same person maintaining whonix.org, it is added here. Questions What happened to, what is the successor of the forum funding system?
Putting together a scripting language hackathon - need advice
I'm putting together a webinar based hackathon for a local Linux user group to learn Bitcoin Scripting Language. First question: there are a number of tutorials on BitcoinScripting Language and I know Bitcoin Cash and SV are forks and,so, the same or am I assuming too much? I know they made changes to the forks but would any of them affect beginners? Or, similarly, are there any similar tutorials for the forks? Second, I'm assuming the first step for students would be to install a server on their own PCs. It's been years since I have had one and am having a hard time getting one set up. I'm on Ubuntu. I could try to build from source if there was a detailed step-by-step but prefer something easier (not all the Linux group would be able to build from source and the focus is on the scripting language). So could someone walk me through setting up a server?
Storage space: I am using an 8 GB microSD card for the OS, and a 128 GB USB drive for data. Minimums I would recommend: 8GB SD card and 32 GB USB drive.
Reddcoin Core client version: v126.96.36.199-a8767ba-beta (most recent version at this moment). ↳ Screenshot
You need the OS; Lubuntu. Download Lubuntu (707 MB) for the Raspberry Pi: https://ubuntu-pi-flavour-maker.org/download/. It's a .torrent download, so you will need a BitTorrent client. Message me or post in this thread if you need help with this.
You need software to write the OS to the SD card. I use Etcher. Download Etcher: https://etcher.io/.
Select image: select the lubuntu-16.04.2-desktop-armhf-raspberry-pi.img.xz file.
Select drive: select your microSD card.
Plug the SD card into your Raspberry Pi and power it up.
Lubuntu should boot up.
Set up Lubuntu, connect to the internet (wired or wireless). ↳ As username, I chose "rpi3b". You will see this username throughout this whole tutorial.
Make sure date and time are correct ([Menu] > System Tools > Time and Date). ↳ Click on Unlock to make changes. I personally change Configuration to "Keep synchronized with Internet servers". ↳ Screenshot
Reboot ([Menu] > Logout > Reboot). I am connected to wifi, but have issues getting wifi to work on initial boot. A reboot solves this issue.
Make sure system is up-to-date, install never versions.
Open LXTerminal ([Menu] > System Tools > LXTerminal). ↳ Screenshot
Enter the following in LXTerminal: sudo apt update && sudo apt upgrade ↳ Screenshot
You will be asked if you really want to continue. Enter Y (yes).
Updates are being installed! Wait until it's finished.
Install programs that will be used in this tutorial.
GParted: to partition the USB drive.
Htop: to see the amount of memory (RAM) and swap that is in use.
Enter the following in LXTerminal to install these 2 programs. sudo apt install gparted && sudo apt install htop ↳ Screenshot
Create 2 partitions on the USB drive: 1) Swap partition 2) data partition (for the Reddcoin blockchain) The swap partition is necessary: The Reddcoin wallet can be memory intensive. To prevent any crashes or freezes, add 2 GB of 'virtual' memory by creating a swap partition.
Important: Backup your USB drive if needed. The USB drive will be formatted, so the data on the USB drive will be wiped.
Please use the USB drive solely for this purpose, do not combine it with other stuff.
Keep your USB drive plugged in, do not (randomly) plug it out.
Plug your USB drive in.
GParted will be used to create the partititons. Start GParted via LXTerminal: sudo gparted ↳ Screenshot
Apply the changes. Click on the check mark or select Edit > Apply All Operations. ↳ Screenshot ↳ Screenshot
Important: The name of the swap partition is needed later, so please write it down. Mine is /dev/sda1 (first partition on first drive (drive 'a')). ↳ Screenshot
Reboot. After the reboot, the data partition you just created should be visible on your desktop. ↳ Screenshot
The swap partition is created, so now we can enable and use it.
The swap in use can be monitored with the program Htop. Open Htop ([Menu] > System Tools > Htop) to see the 'Swp' (swap) in use. ↳ Screenshot By default, swap is not used, so 0K. ↳ Screenshot You can leave Htop open.
To enable the swap partition, open LXTerminal and enter the following commands: (Assuming /dev/sda1 is your swap partition.)
Unpack the file (large file, takes around 15 minutes to unpack): sudo xz -d bootstrap.dat.xz ↳ Screenshot
After a successful unpack, your will find the file bootstrap.dat in your USB root folder. ↳ Screenshot
On the first run of the Reddcoin Core client, it will ask for a data directory to store the blockchain and wallet data.
Start the Reddcoin Core client: sudo /media/rpi3b/usb/reddcoin/src/qt/reddcoin-qt ↳ Screenshot
The welcome screen will appear and ask you about the data directory. I suggest a new folder on your USB drive, I picked blockchain. The directory will be created with all the necessary files. ↳ Screenshot
Click on the three dots (...) on the right. ↳ Screenshot
Click on Create Folder at the upper right corner. Type and enter in the folder name. (In my case: blockchain.) Click on Open. ↳ Screenshot ↳ Screenshot ↳ Screenshot
After selecting the directory, the Reddcoin Core client will start. Wait till it's fully loaded and close it.
Move the bootstrap.dat file to your data directory you selected in the previous step. By doing this, Reddcoin Core will use the bootstrap.dat file to import the blockchain, which speeds up syncing. sudo mv bootstrap.dat /media/rpi3b/usb/blockchain/ (Assuming blockchain as data directory.) ↳ Screenshot
The Reddcoin Core client set up is completed, but you still have to sync fully with the blockchain before you can send, receive and stake.
Keep the client running until it's fully synchronized. It will use the bootstrap file first, and download the rest of the blockchain to complete the sync. This can take some time (it took 2 days for me). Syncing the blockchain uses a lot of resources, so the software may react slow.
You can see the progress in the debug window (Help > Debug window). ↳ Screenshot
When the synchronization is completed, the red (out of sync) will disappear on the Overview screen! ↳ Screenshot
When synchronization is complete, you can start staking your Reddcoins.
You can write down your private key or copy and save it in a document. Make sure you save it somewhere only you can access it.
To import later: Debug window -> Console -> importprivkey [label] [label] is optional. ↳ Screenshot (without a label) ↳ Screenshot (with a label)
Boot with only 1 USB drive plugged in: Make sure only the USB drive (with the swap partition and data partition) is plugged in when you boot up your Raspberry Pi. This to make sure the swap partition (/dev/sda1) is recognized correctly. If you boot up with multiple USB drives, Lubuntu might see the USB drive with the swap partition as the second drive (instead of the first drive), and ignore the 2 GB swap partition. If this happens, starting Reddcoin can render the Raspberry Pi unresponsive.
Start Reddcoin Core easier Run a shell script (.sh file), so you can start Reddcoin just by double clicking on an icon on your Desktop.
Right Click on your Desktop and select Create New -> Empty File. ↳ Screenshot
Enter a file name, make sure it ends with .sh, and click on OK. I've chosen for Reddcoin.sh. ↳ Screenshot The file will be created on your Desktop. ↳ Screenshot
Add the command to start Reddcoin to the file.
Right click on the file, select Leafpad (to open the file in a text editor). ↳ Screenshot
Add the following to the file and save the file: sudo /media/rpi3b/usb/reddcoin/src/qt/reddcoin-qt ↳ Screenshot
To be able to execute the shell script (.sh), it has to have 'execute permissions'.
Right click on the file, and select Properties. ↳ Screenshot
Click on the Permissions tab.
For Execute, select Anyone, and click on OK. ↳ Screenshot
To start Reddcoin Core, double click on the file. A new window will pop-up, asking you what you want. Execute in Terminal is what we want, so you can click on enter. ↳ Screenshot Reddcoin Core will now start. Do not close the Terminal window, you can minimize it if needed.
Minimization options Adjust minimization options, so you can safely press on the X button (the close/exit button on the upper right corner).
Activate 'Minimize on close'. Settings -> Options... -> Window (tab) -> Minimize on close. ↳ Screenshot Reddcoin will still run when you click on the X button. To close/exit Reddcoin, right click on the Reddcoin icon in the system tray (bottom right corner). ↳ Screenshot
RealVNC VNC Viewer (client) and VNC Connect (server): To remote connect to the Raspberry Pi, I use VNC Viewer ad VNC Connect from RealVNC.
After your download is finished, open the file and click Install Package. ↳ Screenshot
To run the VNC Connect once:
Open [Menu] > Run, and enter: vncserver-x11 ↳ Screenshot
To auto run on startup:
Open Default applications for LXSession ([Menu] > Preferences > Default applications for LXSession). ↳ Screenshot
In LXSessions configuration, select Autostart in the menu left.
Under Manual autostarted applications, enter vncserver-x11 and click on + Add. ↳ Screenshot ↳ Screenshot
Reboot your Raspberry Pi and check if VNC Connect is started automatically after the reboot.
When VNC Connect is running, you'll see a VNC icon on the right bottom corner. Double click the icon to open VNC Connect and to see the IP address you need to enter to connect to your Raspberry Pi. ↳ Screenshot
An Idiots (me) Guide To Installing A Citizen Node.
So I dusted off an old laptop and have compiled a how-to install the Iconloop Engine and Iconservice on Linux and OSX. The directions on github are very good but there are a few issues with OSX and Xcode. Here is my simple how to with work arounds for Xcode on OSX and simple compiling for OSX. I will edit this as need be and it isn't exhaustive but rather a good solid how-to for anyone that wants to play around with our favorite open source project. Some of the packages for Ubuntu took a little searching and I hope this saves somebody some time. Have a great day. *Linux:* Install make tools, rabbitmq-server, opensssl, pkg-config $ sudo apt install automake pkg-config libtool rabbitmq-server openssl Install libsec256k1-0 $ sudo apt-get install libsecp256k1-0 Python3: $ sudo apt-get install python3 $ sudo apt-get install python3-distuttils $ sudo apt-get install python3-set-proctitle $ sudo apt-get install python3-devel LevelDB: Linux $ sudo apt-get install libsnappy-dev $ export VER="1.20" $ wget https://github.com/google/leveldb/archive/v1.20.tar.gz $ tar xvf v1.20.tar.gz $ rm -f v$1.20.tar.gz $ cd leveldb-$1.20 $ make $ sudo scp -r out-static/lib* out-shared/lib* "/uslocal/lib" $ cd include $ sudo scp -r leveldb /uslocal/include $ sudo ldconfig Loopchain Engine: Download zip: https://github.com/icon-project/loopchain Unzip $ cd /home/useDownloads $ ls-la $ cd /loopchain-master install libtolls-bin otherwise make won't work. $ sudo apt install libtool-bin $ service rabbitmq-service start $ source venv/bin/activate $ (venv)$ ./build.sh $ make setup $ make install $ loop citizen -r testnet Apply passcode when prompted Iconloop engine now running. $ virtualenv -p python3 venv Setting up Icon Service # Create a working directory $ mkdir work $ cd work # Setup the python virtualenv development environment $ virtualenv -p python3 venv $ source venv/bin/activate # Install the ICON SCORE dev tools (venv) $ pip install iconservice *OSX:* Xcode: You'll need Xcode 9.4 from Apple Developer, lstdc++ is deprecated. Manually link library from Xcode 9.4 cp /Applications/Xcode9.4.app/Contents/DevelopePlatforms/iPhoneOS.platform/DevelopeSDKs/iPhoneOS.sdk/uslib/libstdc++.* /Applications/Xcode10.app/Contents/DevelopePlatforms/iPhoneOS.platform/DevelopeSDKs/iPhoneOS.sdk/uslib/ For Simulator : cp /Applications/Xcode9.4.app/Contents/DevelopePlatforms/iPhoneSimulator.platform/DevelopeSDKs/iPhoneSimulator.sdk/uslib/libstdc++.* /Applications/Xcode10.app/Contents/DevelopePlatforms/iPhoneSimulator.platform/DevelopeSDKs/iPhoneSimulator.sdk/uslib/ Install Homebrew Manually install bitcoin-core/secp256k1 https://github.com/bitcoin-core/secp256k1 cd /path/to/download $ ./autogen.sh $ ./configure $ make $ ./tests $ sudo make install For OSX follow the directions at the project after you have shared Xcode libraries from 9.4 to the current Xcode per the instructions above. Any feedback most helpful. https://preview.redd.it/qpp3v7dxflf21.png?width=1366&format=png&auto=webp&s=e5ebc3ea7e59700e111223c63c3b683cc573d6a9
Hi, We're developing an exciting cryptocurrency / IOT project and we are now at a stage where we'd like to bring in another dev to work with us to share the load of our upcoming demonstrations. Its a paid role - so we're not asking you to invest your time in our business (although if things go well, a long term association will be an additional bonus!) It's also principally a hardware / software based project, so we're really looking for people in the UK near North London to Milton Keynes with their own transport, so they can join us in person. What core skills are we looking for? A great coder who is well organised, a great team player and communicator, passionate and good at making clear notes in their code and is security conscious when programming.
Excellent knowledge of cryptocurrencies and blockchain tech - particularly Bitcoin and Ethereum.
Web languages with experience in responsive design
Linux Server via the Command Line - Ubuntu preferably, or Centos.
Ideal Skills - if you can do this, you're an ideal candidate!
Bitcoin Protocol, manual / raw transactions.
ARM Coding (Raspberry Pi, GPIO...)
Crypto Wallets - whether you've created your own, or modified an open-source one... or work done on any other type of crypto project
Memory management - flow of data through machines, control and security related.
USB, Bluetooth and WiFi Protocols.
A few references from other people that have hired you would be ideal.
This is a limited time paid project (in Fiat or Bitcoin as your choice - not in sh*tcoins or our ICO tokens...).
Although we aren't offering our ICO tokens in exchange for your hard work, knowledge and experience, if this project goes well in terms of our work relationship / quality of work / meeting deadlines and supporting the overall spirit of the project, there is an opportunity for us to look through options. Obviously we'd love a long term partner that will be as passionate about our project as we are, but we all have to eat and keep a roof over our heads, etc.
Don't worry if you're a student or have just finished Uni - skills and character are more important than a long CV.
We're already Patent Pending, we're currently engaging with long term investors and have a number of prototypes under our belt - so the project is well organised and you'll be working alongside us to build a number of well-defined test cases. We've also got cleared funding for this work - so no need to worry about pressures from current investors.
It is a bit hush-hush, so we'll ask you to sign an NDA before we talk in detail.
We will want to work closely with you in terms of project management and also as our work will be audited.
We'd rather get it right than rush it... and the founders / directors and investors know that we have the expertise. We also had a lot of fun on BBC Micros and Spectrums in the 80s... We work together and respect the knowledge of our engineers.
The report produced by the fire block chain coins Institute, author: Yuan Yuming, Hu Zhiwei, PDF version please read the original text download Summary The Fire Coin Blockchain Application Research Institute conducts research on distributed ledger technology based on directed acyclic graph (DAG) data structure from a technical perspective, and through the specific technical test of typical representative project IOTA, the main research results are obtained:
Compared with the narrowblockchaintechnology,DAGtechnology has its own innovations. In theory, it can achieve high scalability and high decentralization without considering the evil situation. Therefore, there are some security risks.
DAGprojects tend to operate in a decentralized manner, which reduces the degree of decentralization to improve safety, but at the same time the transaction rate is not close to the theoretical limit.
Using a 40-node network based on VPS (CPU for PoW) to conduct a trading stress test on a representative project IOTA, it can be found that the TPS is very low: the optimal result that can be achieved is 4.19.
After analysis, its performance bottleneck is mainly based on the hardware implementation of the hardware itself.If you use other methods such as FPGA, you should further explore the performance potential of DAG.
At the same time, in order to maintain good transaction processing capabilities, a network of nodes of sufficient scale should be established.
Report body 1 Introduction Blockchain is a distributed ledger technology, and distributed ledger technology is not limited to the "blockchain" technology. In the wave of digital economic development, more distributed ledger technology is being explored and applied in order to improve the original technology and meet more practical business application scenarios. Directed Acylic Graph (hereinafter referred to as "DAG") is one of the representatives. What is DAG technology and the design behind it? What is the actual application effect?We attempted to obtain analytical conclusions through deep analysis of DAG technology and actual test runs of representative project IOTA. It should also be noted that the results of the indicator data obtained from the test are not and should not be considered as proof or confirmation of the final effect of the IOTA platform or project. Hereby declare. 2. Main conclusions After research and test analysis, we have the following main conclusions and technical recommendations:
Compared with the narrow blockchain technology, DAG technology has its own innovations. In theory, it can achieve high scalability and high decentralization without considering the evil situation. Therefore, there are some security risks.
DAG projects tend to operate in a decentralized manner, which reduces the degree of decentralization to improve safety, but at the same time the transaction rate is not close to the theoretical limit.
Using a 40-node network based on VPS (CPU for PoW) to conduct a trading stress test on a representative project IOTA, it can be found that the TPS is very low: the optimal result that can be achieved is 4.19.
After analysis, its performance bottleneck is mainly based on the hardware implementation of the hardware itself.If you use other methods such as FPGA, you should further explore the performance potential of DAG.
At the same time, in order to maintain good transaction processing capabilities, a network of nodes of sufficient scale should be established.
3.DAG Introduction 3.1. Introduction to DAG Principle DAG (Directed Acyclic Graph) is a data structure that represents a directed graph, and in this graph, it cannot return to this point (no loop) from any vertex, as shown in the figure. Shown as follows: 📷 After the DAG technology-based distributed ledger (hereinafter referred to as DAG) technology has been proposed in recent years, many people think that it is hopeful to replace the blockchain technology in the narrow sense. Because the goal of DAG at design time is to preserve the advantages of the blockchain and to improve the shortcomings of the blockchain. Different from the traditional linear blockchain structure, the transaction record of the distributed ledger platform represented by IOTA forms a relational structure with a directed acyclic graph, as shown in the following figure. 📷 3.2. DAG characteristics Due to the different data structure from the previous blockchain, the DAG-based distributed ledger technology has the characteristics of high scalability, high concurrency and is suitable for IoT scenarios. 3.2.1. High scalability, high concurrency The data synchronization mechanism of traditional linear blockchains (such as Ethereum) is synchronous, which may cause network congestion. The DAG network adopts an asynchronous communication mechanism, allowing concurrent writing. Multiple nodes can simultaneously trade at different tempos without having a clear sequence. Therefore, the data of the network may be inconsistent at the same time, but it will eventually be synchronized.
3.2.2. Applicable to IoT scenarios
In the traditional blockchain network, there are many transactions in each block. The miners are packaged and sent uniformly, involving multiple users. In the DAG network, there is no concept of “block”, the smallest unit of the network. It is a "transaction", each new transaction needs to verify the first two transactions, so the DAG network does not need miners to pass the trust, transfer does not require a fee, which makes DAG technology suitable for small payments. 4. Analysis of technical ideas Trilemma, or "trilemma", means that in a particular situation, only two of the three advantageous options can be selected or one of the three adverse choices must be chosen. This type of selection dilemma has related cases in various fields such as religion, law, philosophy, economics, and business management.Blockchain is no exception. The impossible triangle in the blockchain is: Scalability, Decentralization, and Security can only choose two of them. If you analyze DAG technology according to this idea, according to the previous introduction, then DAG has undoubtedly occupied the two aspects of decentralization and scalability. The decentralization and scalability of the DAG can be considered as two-sided, because of the asynchronous accounting features brought about by the DAG data structure, while achieving the high degree of decentralization of the participating network nodes and the scalability of the transaction. 5. There is a problem Since the characteristics of the data structure bring decentralization and scalability at the same time, it is speculated that the security is a hidden danger according to the theory of impossible triangles. But because DAG is a relatively innovative and special structure, can it be more perfect to achieve security? This is not the case from the actual results. 5.1. Double flower problem The characteristics of DAG asynchronous communication make it possible for a double-flower attack. For example, an attacker adds two conflicting transactions (double spending) at two different locations on the network, and the transactions are continuously forward-checked in the network until they appear on the verification path of the same transaction, and the network discovers the conflict. At this time, the common ancestor nodes that the two transactions are gathered together can determine which transaction is a double-flower attack. If the trading path is too short, there will be a problem like "Blowball": when most transactions are "lazy" in extreme cases, only the early trading, the trading network will form a minority. Early transactions are the core central topology. This is not a good thing for DAGs that rely on ever-increasing transactions to increase network reliability. Therefore, at present, for the double flower problem, it is necessary to comprehensively consider the actual situation for design. Different DAG networks have their own solutions. 5.2. Shadow chain problem Due to the potential problem of double flowers, when an attacker can build a sufficient number of transactions, it is possible to fork a fraudulent branch (shadow chain) from the real network data, which contains a double flower transaction, and then this The branch is merged into the DAG network, and in this case it is possible for this branch to replace the original transaction data. 6. Introduction to the current improvement plan At present, the project mainly guarantees safety by sacrificing the native characteristics of some DAGs. The IOTA project uses the Markov chain Monte Carlo (MCMC) approach to solve this problem. The IOTA introduces the concept of Cumulative Weight for transactions to record the number of times the transaction has been cited in order to indicate the importance of its transaction. The MCMC algorithm selects the existing transactions in the current network as a reference for the newly added transactions by weighting the random weights of the accumulated weights. That is, the more referenced the transaction path, the easier it is to be selected by the algorithm. The walk strategy has also been optimized in version 1.5.0 to control the "width" of the transaction topology to a reasonable range, making the network more secure. However, at the beginning of the platform startup, due to the limited number of participating nodes and transactions, it is difficult to prevent a malicious organization from sending a large number of malicious transactions through a large number of nodes to cause the entire network to be attacked by the shadow chain. Therefore, an authoritative arbitration institution is needed to determine the validity of the transaction. In IOTA, this node is a Coordinator, which periodically snapshots the current transaction data network (Tangle); the transactions contained in the snapshot are confirmed as valid transactions. But Coordinator doesn't always exist. As the entire network runs and grows, IOTA will cancel the Coordinator at some point in the future. The Byteball improvement program features its design for the witness and the main chain. Because the structure of DAG brings a lot of transactions with partial order, and to avoid double flowers, it is necessary to establish a full order relationship for these transactions to form a transaction backbone. An earlier transaction on the main chain is considered a valid transaction.Witnesses, who are held by well-known users or institutions, form a main chain by constantly sending transactions to confirm other user transactions. The above scheme may also bring different changes to the platform based on the DAG structure. Taking IOTA as an example, because of the introduction of Coordinator, the decentralization characteristics are reduced to some extent. 7. Actual operation 7.1. Positive effects In addition to solving security problems, the above solutions can also solve the smart contract problem to some extent. Due to the two potential problems caused by the native features of DAG: (1) The transaction duration is uncontrollable. The current mechanism for requesting retransmission requires some complicated timeout mechanism design on the client side, hoping for a simple one-time confirmation mechanism. (2) There is no global sorting mechanism, which results in limited types of operations supported by the system. Therefore, on the distributed ledger platform based on DAG technology, it is difficult to implement Turing's complete intelligent contract system. In order to ensure that the smart contract can run, an organization is needed to do the above work. The current Coordinator or main chain can achieve similar results. 7.2. Negative effects As one of the most intuitive indicators, DAG's TPS should theoretically be unlimited. If the maximum TPS of the IOTA platform is compared to the capacity of a factory, then the daily operation of TPS is the daily production of the plant. For the largest TPS, the April 2017 IOTA stress test showed that the network had transaction processing capabilities of 112 CTPS and 895 TPS. This is the result of a small test network consisting of 250 nodes. For the daily operation of TPS, from the data that is currently publicly available, the average TPS of the main network in the near future is about 8.2, and the CTPS (the number of confirmed transactions per second) is about 2.7. 📷 The average average TPS of the test network is about 4, and the CTPS is about 3. 📷 Data source discord bot: generic-iota-bot#5760 Is this related to the existence of Coordinator? Actual testing is needed to further demonstrate. 8. Measured analysis The operational statistics of the open test network are related to many factors.For further analysis, we continue to use the IOTA platform as an example to build a private test environment for technical measurement analysis. 8.1. Test Architecture The relationship between the components we built this test is shown below. 📷 among them:
In order to avoid the impact of other factors on the main network or test network on the test results, we built a 40-node small private IOTA test network. The build process refers to the "Private IOTA Testnet" project (https://github.com/schierlm/private-iota-testnet.git) and updates the IRI (IOTA Reference Implementation) version used in it to the latest v1.5.0 release. In addition, during the test, the Coordinator simulation tool provided by the tool is used to periodically generate snapshots to confirm the transaction.
Use Python-based open source load testing tool Locust (https://locust.io/) to control the sending of transaction data. After the test is started, the transaction data is randomly sent to the nodes in all private networks.
When the node is started, the "--zmq-enabled" parameter is added to start the ZeroMQ support of the IOTA, and the transaction data obtained by the node is sent to the observing end through the message queue. Use the ZeroMQ event parsing script (https://github.com/lunfardo314/tps\_zmq.git) on the observing side to observe the node transaction data.
8.2. Testing the hardware environment The server uses Amazon AWS EC2 C5.4xlarge: 16 core 3GHz, Intel Xeon Platinum 8124M CPU, 32GB memory, 10Gbps LAN network between servers, communication delay (ping) is less than 1ms, operating system is Ubuntu 16.04. 8.3. Test scenarios and results analysis
8.3.1. Default PoW Difficulty Value
Although there is no concept such as “miners”, the IOTA node still needs to prove the workload before sending the transaction to avoid sending a large number of transactions to flood the network. The Minimum Weight Magnitude is similar to Bitcoin. The result of PoW should be the number of digits of "9", 9 of which is "000" in the ternary used by IOTA. The IOTA difficulty value can be set before the node is started. Currently for the production network, the difficulty value of the IOTA is set to 14; the test network is set to 9. Therefore, we first use the test network's default difficulty value of 9 to test, get the following test results. 📷 Since each IOTA's bundle contains multiple transfers, the actual processed TPS will be higher than the send rate. But by executing the script that parses zmq, it can be observed that the current TPS is very low. Another phenomenon is that the number of requests that can be sent successfully per second is also low. After analysis, the reason is that the test uses VPS, so in PoW, the CPU is mainly used for calculation, so the transaction speed is mainly affected by the transmission speed.
8.3.2. Decrease the PoW difficulty value
Re-test the difficulty value to 1 and get the following results. 📷 As can be seen from the results, TPS will increase after the difficulty is reduced. Therefore, the current TPS of the IOTA project does not reach the bottleneck where the Coordinator is located, but mainly because of the hardware and network of the client itself that sends the transaction. The IOTA community is currently working on the implementation of FPGA-based Curl algorithm and CPU instruction set optimization. Our test results also confirm that we can continue to explore the performance potential of the DAG platform in this way.
I'm writing this because I couldn't find a single condensed guide on compiling the wallet and running mining software on linux, specficially Ubuntu/Linux Mint. I combed Bitcoin and Litecoin forums for similar problems I was running into and eventually got everything nailed down, so here it is in one place, for new Shibes. If you want to make a Dogecoin directory in your downloads folder to keep things organized, you will need to modify these commands to refelct the change. So instead of going to ~/Downloads/ you will need to go to ~/Downloads/Dogecoin and be sure to put the zipped files there when you download them, but the commands will be the same otherwise. cwayne18 put in the work to make a PPA for the QT client here. Ubunutu/Mint/Debian users should be able to install the client with the following commands:
Compiling the Wallet Manually I suggest using the PPA above, but if you want to compile manually, here you go. 1)Download the newest source from here. If you want to check out the Github page, click here 2)Unzip the package with the native client OR, navigate to your downloads and unzip
cd ~/Downloads unzip dogecoin-master.zip
3)Now it's time to compile. You will need to install the dependencies, just copy and paste the following code. It will be a fairly large download and could take some time. It is always important to update before installing any new software, so we'll do that first and then install the dependencies.
4)Once that is done, go to the doge-coin master directory and compile:
cd ~/Downloads/dogecoin-maste sed -i 's/-mgw46-mt-sd-1_53//g' dogecoin-qt.pro qmake USE_UPNP=- USE_QRCODE=0 USE_IPV6=0 make -j3
After running the qmake command you will likely see some text similar to
Project MESSAGE: Building without UPNP support Project MESSAGE: Building with UPNP supportRemoved plural forms as the target language has less forms. If this sounds wrong, possibly the target language is not set or recognized.
It's perfectly normal, so don't worry about that. Your Dogewallet is ready to go! The executable is in ~/Downloads/dogecoin-maste and called dogecoin-qt. Your wallet information is in ~/.dogecoin. You can run the wallet at any time by opening terminal and typing
cd ~/Downloads/dogecoin-maste ./dogecoin-qt
Future upgrades to dogewallet are easy. Back up your wallet.dat, and simply follow the same directions above, but you'll be unzipping and building the newer version. You will likely need to rename the old dogecoin-master directory in ~/Downloads before unzipping the newest version and building. Also, it is likely that you will not need to install the dependencies again. Alternate Method For Installing Dogecoin Wallet from Nicebreakfast After installing the dependencies listed in step 3, open terminal, then navigate to where you want Dogecoin Wallet stored and run:
git clone https://github.com/dogecoin/dogecoin ./autogen.sh ./configure make
then when the wallet is updated just run
from the dogecoin directory. GPU Mining GPU mining requires CGminer. My suggestion is to get the executable already built. The creator of cgminer has removed the built file from his website, but I've uploaded it here
sudo apt-get install pkg-config opencl-dev libcurl4-openssl-dev autoconf libtool automake m4 ncurses-dev cd ~/Downloads tar -xvf cgminer-3.7.2-x86_64-built.tar.bz2
Don't use anything newer than 3.7.2. The newer versions of CGMiner don't support GPU mining. That's it! You have cgminer ready to go! You will run cgminer with the following syntax
cd ~/Downloads/cgminer-3.7.2-x86_64-built/ ./cgminer --scrypt -o stratum+tcp://SERVERNAME:PORT -u WORKER.ID -p PASS
A good guide for fine tuning cgminer can be found here; follow the litecoin example. EDIT I had trouble getting cgminer running with a single line command, but running it via an executable .sh file works. This is covered in the cgminer setup guide I posted above but I'll put it here too. In the same directory that has the cgminer executable, you need to make a file called cgminer.sh and make it executable. It should contain the follwing:
Then you can call cgminer in terminal by doing ./cgminer.sh You will need a cgminer.conf file containing all your options. All of this is covered in the guide that is linked above. A quick note about AMD drivers: They used to be a huge PITA to install and get working, but the newest Catalyst drivers are great. There's a GUI installer, everything works out of the box, and there is a lot of documentation. You can download them here: AMD Catalyst 14.6 Beta Linux CPU Mining For CPU mining I use minerd because it doesn't require any work to get running, simply download it and get to work. Download the built file for your machine 32-bit or 64-bit, and then unzip it and you're ready to go!
cd ~/Downloads tar -xvf pooler-cpuminer-2.3.2-linux-x86.tar.gz
The executable is called minerd and it will be in ~/Downloads but you can move it to wherever you like. To run it, pull up terminal and do
cd ~/Downloads minerd --url=stratum+tcp://SERVER:PORT --userpass=USERNAME.WORKERNAME:WORKERPASSWORD
You're done! Happy mining! Common Issues I ran into this and I've seen others with this problem as well. Everything installs fine but there is a shared library file that isn't where it should be. In fact, it isn't there at all.
libudev.so.1: cannot open shared object file: No such file or directory
In terminal, do
sudo updatedb locate libudev.so.0.13.0
And it will probably return a path /lib/x86_64-linux-gnu. Inside that directory there's a library file called libudev.so.0.13.0. You'll need to make a symlink (aka shortcut) that links libudev.so.1 to libudev.so.0.13.0 So, assuming you're working with libudev.so.0.13.0 do this
cd /lib/x86_64-linux-gnu sudo ln -s libudev.so.0.13.0 libudev.so.1
Now if you do
You should see
libudev.so.1 -> ./libudev.so.0.13.0
Meaning you've made the symlink. Also, the text for libudev.so.1 will be blue.
Ubuntu is often recommended as an operating system on which to run Bitcoin Core.Although Bitcoin Core can be installed as a precompiled binary, this method won’t work in every situation.This guide shows how to compile Bitcoin Core from scratch on a clean Ubuntu 18.04 system. I am running an Ubuntu Virtualbox, how do I build Bitcoin from source and run it in this environment? I'm using the build notes from the bitcoin core github and I get the following errors when trying to do make -f makefile.unix bitcoind: Ubuntu Bionic 18.04 is required and is the platform used to build the Bitcoin Core Windows release binaries. On Windows, using Windows Subsystem for Linux (WSL) and the Mingw-w64 cross compiler tool chain. On Windows, using a native compiler tool chain such as Visual Studio. See README.md. Other options which may work, but which have not been extensively tested are (please contribute ... It is far better to compile bitcoin by your own and then use it. In this post, I will explain how to compile bitcoin source code on Ubuntu 16.04 LTS. I will be running my Ubuntu instance on AWS though you can follow the same instructions anywhere on Ubuntu 16.04 LTS. Please make sure your server has at least 4 GB of RAM. I am assuming the ... Heatmap build bitcoin from source ubuntu kryptowährung kurs chf qt Changes to fee estimate RPCs The estimatesmartfee (which is the implementation used by the GUI) The The conf_target (to be consistent with other RPC methods). Encrypting the wallet will create a new seed which requires a new backup! Be able to compile windows qt wallets from source on a windows it is used to build the codebase ...
How to install Bitcoin Core wallet in any Linux distribution
How to run a Bitcoin Full Node(Linux + Build from Source) - Duration: 14:13. Coding with Canbo 2,737 views. 14:13. Top Five Useful Knots for camping, survival, hiking, and more - Duration: 10:47 ... Headless installation for alt crypto coin using Ubuntu Linux Server. Learn how to build a website server and host a website from home. In this episode we are going to download and install Linux and learn how to use port forwarding and FTP to connect with it. In this video we are going to learn how to build bitcoin from source and run it on linux. We are using Ubuntu 16.04 for this tutorial but you can use your favourite flavour of linux. How to mining Bitcoin with your Ubuntu VPS? Earn 0.0001 BTC per VPS, if you have 10 VPS, you will earn 0.001 BTC per day (~2.5 USD), if you have a lot of VPS, you will earn more BTC per day. Setup ...