Current hash rate: 261,900,382 GH/s
Number of transactions per day: 71,331
If we assume rather conservatively that 1GH/s = 1 watt on average, then this would mean 261,900,382W is being used to power the network. We can simplify this to 261,900 kW.
Some miners can do better than 1W per 1GH/s, but many if not most do worse (i.e. 2W per 1GH/s to 10W per 1GH/s).
Going by the figure of 0.527kg CO2 / kWh found on this page,
0.527kg CO2 x 261,900 kW x 24 hours = 3,312,511.2 kg CO2 per day
3,312,511.2 kg CO2 / 71,331 transactions = 46.44 kg CO2 per transaction
For comparison, even going by this Coindesk Article, an ATM produces daily 3.162kg in CO2 emissions.
0.25kwH x 0.527kg CO2 x 24 hours = 3.162kg/day.
That means that the carbon emission for one Bitcoin transaction is equivalent to about 15 ATMs processing perhaps hundreds or thousands of transactions in a day combined.
Right, there's a bunch of circlejerking happening in /Bitcoin right now so I think it's time to cut through the bullshit one way or another.
Country to send money to.
The biggest remittance markets are China, Indian and the Philippines.
I believe that since /Bitcoin often gives the Philippines as an example of successful Bitcoin remittance then it is the perfect country to use in our challenge.
Country to send money from.
According to this wikipedia article Malaysia and Canada have the biggest expat Filipino communities. 900,000 and 500,000.
So I think we should do the calculations based on both countries.
Most people are not paid in Bitcoin. This is a fact. So for our calculation you must start with fiat, and end in fiat. We're not doing these calculations based on future utility of Bitcoin (No, neo. I'm saying...), we're doing them on the current utility.
We will also be doing a bank to bank remittance, because that is nice an constant. We don't need to take into account pick up locations Bitcoin remittance allows and pick up locations normal remittance allows. They'll vary too much.
Time will also not be taken into account, as time doesn't actually matter when it comes to remittance. Now, Bitcoiners might shout about this particular rule but let me explain my logic behind this.
A foreign worker gets paid every Friday. They start the remittance process on the Friday and regardless of if it takes 0, 3, or 5 days their family back in their home country just needs to base their life around money coming in on remitters pay day + 0, 3, or 5 days. Time taken is of no real value when it comes to remittance. All that matters is that it consistently arrives on day x.
As such, any remittance services that take over 5 working days are to be ignored for the sake of this challenge.
The amount is going to be 25% of the average wage in each of the countries. This isn't extremely scientific because it doesn't particularly need to be, and the figures are hard to come by.
So 1826.75 MYR for Malaysia and 1,398 CAD for Canada.
Don't bother complaining about these, they're just examples.
Few more ground rules
- We're going to be going from bank/bank card to bank regardless, so we're not interested in banking fees on either side. They will be the same regardless of Bitcoin or WU (for example)
- It must be from local fiat to foreign fiat.. You can't palm off the conversion fee to the receivers bank to keep fees down.
- Any remittance service can be used, as long as Bitcoin is involved for people fighting the Bitcoin corner and Bitcoin isn't used for people fighting the WU (or similar) corner.
- You must go through the process and document all the fees for each. Fees to look out for are currency spreads, transaction fees on exchanges, etc
The average number of transactions per block right now is: 665 transactions
The average block size is 0.372731752748842mb.
That means the average transaction is 0.00056049887mb. Which means 1mb of transactions (the limit) is 1784 transactions
Assuming a 10 minute block (a whole other can of worms) that means there is 10*60 seconds.
1784/600 isn't 7. It's a 2.97.
Bitcoin at a technical level can not handle even 3 transactions per second.
On the transaction side: the Bitcoin community seems convinced that banks are ripping them off (which imo they are not), and that it can be fixed by applying some magicsauce over a transaction that is facilitated by banks regardless. So far in practice I haven't seen any evidence of the 'fast' 'cheap' and 'easy' transactions, like most recently with Mollie. They usually compare the fees of BTC>BTC transactions to the fees of Chase Mastercard > a fucking nomad in the Sahara (with consumer protection) to prove their point. The community also seems convinced that the entire world banks the way America does, not realizing that in Europe banking has been dirt cheap for years.
And the security... oh boy the security. Half the population can't manage to go without a virus for one year (not an actual statistic), and now you expect them to secure their coins? People are dumb as shit, and software is always one step behind the exploits. We could of course create Bitcoin banks, but then there isn't much left of the original idea.
On the 'intrinsic value' side: what the hell is wrong with people. If the underlying product is no good in any aspect, why is it worth much? Right now (that's like 5 years after introduction mind you) BTC is used in 3 types of transactions: Silk Road, SatoshiDice & extremely questionable transactions. It does its job well in that aspect, and that's all it will ever be. The community just turned the technology into a giant ponzi, and they don't care as long as they get paid. The people actually doing business in Bitcoin probably don't care about the price that much.
That's just an excuse butters use for the price going down.
There's no real difference between selling bitcoin for fiat and exchanging bitcoin for goods and services. Both are a form of sale of bitcoin, an expression of preference for something other than bitcoin.
If on balance, there's more flow of bitcoin into fiat, goods or services than there is a corresponding opposing flow, then it is simply the market expressing the view that bitcoin is overvalued. Therefore, the reduction in the value of bitcoin (as valued in fiat) is a sincere expression of the market's view of what the correct price for bitcoin is.
Think of an example: A true believer has 20 BTC. He exchanges 10 BTC with Dell for a whizzy server. Dell (or another intermediary) sell the 10 BTC at an exchange in return for fiat. The market price of BTC goes down.
The price goes down, simply because a true believer cut his bitcoin holding, he got out. He thought having a server now was worth more to him than 10 tickets to the moon. Which is an expression of a negative view of the future value of bitcoin. A simple "aggressive" sale in trading parlance.
My understanding is that "Satoshi" had been trying to solve the technical problem of convincing a bunch of anonymous, volunteers to maintain and protect a distributed ledger, with no central authority.
He thought that he had a solution, in the form of a protocol that included PoW, miner rewards, longest chain, etc. The solution seemed to work on paper; but, as a good scientist, he started an experiment in order to check whether it would also work in practice.
For that experiment to be meaningful, it would have been enough if the coin was mined for several years only by a few hundred computer nerds, with the cooperation of some friendly pizza places and bars.
The US$ price of the coin was not important to the experiment, and it was never meant to be a weapon for libertarians, a way to buy drugs or evade taxes, a competitor to credit cards or Western Union, a sound investment or item for day-trading. All those "goals" were tacked onto it afterwards.
It gets even better than that, actually. A lot of bitcoiners don't like 'losing' bitcoin, and so coinbase added a popular 'repurchase bitcoin' feature that automatically debits your bank account to replenish the BTC in your coinbase account after a purchase.
The ultimate result then is that you pay coinbase fiat, they take their cut, and then send that fiat on to the merchant. All 'bitcoins' used in the middle of the transaction are not really bitcoins, but just abstractions in coinbase's internal [off-chain] accounting system.
It's a crap version of paypal, no consumer protection and a ton of fees hidden in the spread when you buy your chuck-e-cheese tokens from them.
Most people understand that there are different sorts of interaction. There are purely social interactions, there are quid-pro-quo interactions, and there are market interactions. Mixing those up causes embarrassment and insult. I wouldn't try to pay my mother-in-law ten bucks for cooking Christmas dinner, and I certainly wouldn't try to pay her ten cents. If a waiter suggests I try the raspberry tart, I won't get away with offering to bake him some cookies next week in compensation; if an office mate suggests I have a slice of her birthday cake, I'll be insulted if she brings me a bill for it. If I spend an hour helping my friend move apartments and he thanks me, I'm fine; we're friends helping each other out. If he pays me two bucks, I'm insulted; he's canceled the social nature of the interaction and instead simply bought my labor for a fraction of its going rate. I'm up two bucks but down a friend.
Ancapspergers, not particularly understanding any sort of interaction more complicated than buying a cheeseburger at Wendy's, assume that all interactions are a form of market transaction, and set pricing accordingly. Normal humans get offended by a penny shaving, because it cancels the social nature of the interaction and turns it into a market transaction--and then informs the recipient that his contribution to the transaction was of negligible value.
https://preview.redd.it/5r9soz2ltq421.jpg?width=268&format=pjpg&auto=webp&s=6a89685f735b53ec1573eefe08c8646970de8124submitted by Josephbitcoin to u/Josephbitcoin [link] [comments]
What is Bitcoin?
Bitcoin is an experimental system of transfer and verification of property based on a network of peer to peer without any central authority.
The initial application and the main innovation of the Bitcoin network is a system of digital currency decentralized unit of account is bitcoin.
Bitcoin works with software and a protocol that allows participants to issue bitcoins and manage transactions in a collective and automatic way. As a free Protocol (open source), it also allows interoperability of software and services that use it. As a currency bitcoin is both a medium of payment and a store of value.
Bitcoin is designed to self-regulate. The limited inflation of the Bitcoin system is distributed homogeneously by computing the network power, and will be limited to 21 million divisible units up to the eighth decimal place. The functioning of the Exchange is secured by a general organization that everyone can examine, because everything is public: the basic protocols, cryptographic algorithms, programs making them operational, the data of accounts and discussions of the developers.
The possession of bitcoins is materialized by a sequence of numbers and letters that make up a virtual key allowing the expenditure of bitcoins associated with him on the registry. A person may hold several key compiled in a 'Bitcoin Wallet ', 'Keychain' web, software or hardware which allows access to the network in order to make transactions. Key to check the balance in bitcoins and public keys to receive payments. It contains also (often encrypted way) the private key associated with the public key. These private keys must remain secret, because their owner can spend bitcoins associated with them on the register. All support (keyrings) agrees to maintain the sequence of symbols constituting your keychain: paper, USB, memory stick, etc. With appropriate software, you can manage your assets on your computer or your phone.
Bitcoin on an account, to either a holder of bitcoins in has given you, for example in Exchange for property, either go through an Exchange platform that converts conventional currencies in bitcoins, is earned by participating in the operations of collective control of the currency.
The sources of Bitcoin codes have been released under an open source license MIT which allows to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the software, subject to insert a copyright notice into all copies.
Bitcoin creator, Satoshi Nakamoto
What is the Mining of bitcoin?
Technical details :
During mining, your computer performs cryptographic hashes (two successive SHA256) on what is called a header block. For each new hash, mining software uses a different random number that called Nuncio. According to the content of the block and the nonce value typically used to express the current target. This number is called the difficulty of mining. The difficulty of mining is calculated by comparing how much it is difficult to generate a block compared to the first created block. This means that a difficulty of 70000 is 70000 times more effort that it took to Satoshi Nakamoto to generate the first block. Where mining was much slower and poorly optimized.
The difficulty changes each 2016 blocks. The network tries to assign the difficulty in such a way that global computing power takes exactly 14 days to generate 2016 blocks. That's why the difficulty increases along with the power of the network.
In the beginning, mining with a processor (CPU) was the only way to undermine bitcoins. (GPU) graphics cards have possibly replaced the CPU due to their nature, which allowed an increase between 50 x to 100 x in computing power by using less electricity by megahash compared to a CPU.
Although any modern GPU can be used to make the mining, the brand AMD GPU architecture has proved to be far superior to nVidia to undermine bitcoins and the ATI Radeon HD 5870 card was the most economical for a time.
For a more complete list of graphics cards and their performance, see Wiki Bitcoin: comparison of mining equipment
In the same way that transition CPU to GPU, the world of mining has evolved into the use of the Field Programmable Gate Arrays (FPGA) as a mining platform. Although FPGAs did not offer an increase of 50 x to 100 x speed of calculation as the transition from CPU to GPU, they offered a better energy efficiency.
A typical HD/s 600 graphics card consumes about 400w of power, while a typical FPGA device can offer a rate of hash of 826 MH/s to 80w of power consumption, a gain of 5 x more calculations for the same energy power. Since energy efficiency is a key factor in the profitability of mining, it was an important step for the GPU to FPGA migration for many people.
The world of the mining of bitcoin is now migrating to the Application Specific Integrated Circuit (ASIC). An ASIC is a chip designed specifically to accomplish a single task. Unlike FPGAs, an ASIC is unable to be reprogrammed for other tasks. An ASIC designed to undermine bitcoins cannot and will not do anything else than to undermine bitcoins.
The stiffness of an ASIC allows us to offer an increase of 100 x computing power while reducing power consumption compared to all other technologies. For example, a classic device to offer 60 GH/s (1 hashes equals 1000 Megahash. 1GH/s = 1000 Mh/s) while consuming 60w of electricity. Compared to the GPU, it is an increase in computing power of 100 x and a reduction of power consumption by a factor of 7.
Unlike the generations of technologies that have preceded the ASIC, ASIC is the "end of the line" when we talk about important technology change. The CPUs have been replaced by the GPUs, themselves replaced by FPGAs that were replaced by ASICs.
There is nothing that can replace the ASICs now or in the immediate future. There will be technological refinements in ASIC products, and improvements in energy efficiency, but nothing that may match increased from 50 x to 100 x the computing power or a 7 x reduction in power consumption compared with the previous technology.
Which means that the energy efficiency of an ASIC device is the only important factor of all product ASIC, since the estimated lifetime of an ASIC device is superior to the entire history of the mining of bitcoin. It is conceivable that a purchased ASIC device today is still in operation in two years if the unit still offers a profitable enough economic to keep power consumption. The profitability of mining is also determined by the value of bitcoin but in all cases, more a device has a good energy efficiency, it is profitable.
There are two ways to make mining: by yourself or as part of a team (a pool). If you are mining for yourself, you must install the Bitcoin software and configure it to JSON-RPC (see: run Bitcoin). The other option is to join a pool. There are multiple available pools. With a pool, the profit generated by any block generated by a member of the team is split between all members of the team. The advantage of joining a team is to increase the frequency and stability of earnings (this is called reduce the variance) but gains will be lower. In the end, you will earn the same amount with the two approaches. Undermine solo allows you to receive earnings huge but very infrequent, while miner with a pool can offer you small stable and steady gains.
Once you have your software configured or that you have joined a pool, the next step is to configure the mining software. The software the most populare for ASIC/FPGA/GPU currently is CGminer or a derivative designed specifically for FPGAS and ASICs, BFGMiner.
If you want a quick overview of mining without install any software, try Bitcoin Plus, a Bitcoin minor running in your browser with your CPU. It is not profitable to make serious mining, but it is a good demonstration of the principle of the mining team.
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