submitted by thamilton5 to streamr [link] [comments]
Streamr Network: Performance and Scalability Whitepaper
The Corea milestone of the Streamr Network went live in late 2019. Since then a few people in the team have been working on an academic whitepaper to describe its design principles, position it with respect to prior art, and prove certain properties it has. The paper is now ready, and it has been submitted to the IEEE Access journal for peer review. It is also now published on the new Papers section on the project website. In this blog, I’ll introduce the paper and explain its key results. All the figures presented in this post are from the paper.
The reasons for doing this research and writing this paper were simple: many prospective users of the Network, especially more serious ones such as enterprises, ask questions like ‘how does it scale?’, ‘why does it scale?’, ‘what is the latency in the network?’, and ‘how much bandwidth is consumed?’. While some answers could be provided before, the Network in its currently deployed form is still small-scale and can’t really show a track record of scalability for example, so there was clearly a need to produce some in-depth material about the structure of the Network and its performance at large, global scale. The paper answers these questions.
Another reason is that decentralized peer-to-peer networks have experienced a new renaissance due to the rise in blockchain networks. Peer-to-peer pub/sub networks were a hot research topic in the early 2000s, but not many real-world implementations were ever created. Today, most blockchain networks use methods from that era under the hood to disseminate block headers, transactions, and other events important for them to function. Other megatrends like IoT and social media are also creating demand for new kinds of scalable message transport layers.
The latency vs. bandwidth tradeoffThe current Streamr Network uses regular random graphs as stream topologies. ‘Regular’ here means that nodes connect to a fixed number of other nodes that publish or subscribe to the same stream, and ‘random’ means that those nodes are selected randomly.
Random connections can of course mean that absurd routes get formed occasionally, for example a data point might travel from Germany to France via the US. But random graphs have been studied extensively in the academic literature, and their properties are not nearly as bad as the above example sounds — such graphs are actually quite good! Data always takes multiple routes in the network, and only the fastest route counts. The less-than-optimal routes are there for redundancy, and redundancy is good, because it improves security and churn tolerance.
There is an important parameter called node degree, which is the fixed number of nodes to which each node in a topology connects. A higher node degree means more duplication and thus more bandwidth consumption for each node, but it also means that fast routes are more likely to form. It’s a tradeoff; better latency can be traded for worse bandwidth consumption. In the following section, we’ll go deeper into analyzing this relationship.
Network diameter scales logarithmicallyOne useful metric to estimate the behavior of latency is the network diameter, which is the number of hops on the shortest path between the most distant pair of nodes in the network (i.e. the “longest shortest path”. The below plot shows how the network diameter behaves depending on node degree and number of nodes.
We can see that the network diameter increases logarithmically (very slowly), and a higher node degree ‘flattens the curve’. This is a property of random regular graphs, and this is very good — growing from 10,000 nodes to 100,000 nodes only increases the diameter by a few hops! To analyse the effect of the node degree further, we can plot the maximum network diameter using various node degrees:
Network diameter in network of 100 000 nodes
We can see that there are diminishing returns for increasing the node degree. On the other hand, the penalty (number of duplicates, i.e. bandwidth consumption), increases linearly with node degree:
Number of duplicates received by the non-publisher nodes
In the Streamr Network, each stream forms its own separate overlay network and can even have a custom node degree. This allows the owner of the stream to configure their preferred latency/bandwidth balance (imagine such a slider control in the Streamr Core UI). However, finding a good default value is important. From this analysis, we can conclude that:
Latency scales logarithmicallyTo see if actual latency scales logarithmically in real-world conditions, we ran large numbers of nodes in 16 different Amazon AWS data centers around the world. We ran experiments with network sizes between 32 to 2048 nodes. Each node published messages to the network, and we measured how long it took for the other nodes to get the message. The experiment was repeated 10 times for each network size.
The below image displays one of the key results of the paper. It shows a CDF (cumulative distribution function) of the measured latencies across all experiments. The y-axis runs from 0 to 1, i.e. 0% to 100%.
CDF of message propagation delay
From this graph we can easily read things like: in a 32 nodes network (blue line), 50% of message deliveries happened within 150 ms globally, and all messages were delivered in around 250 ms. In the largest network of 2048 nodes (pink line), 99% of deliveries happened within 362 ms globally.
To put these results in context, PubNub, a centralized message brokering service, promises to deliver messages within 250 ms — and that’s a centralized service! Decentralization comes with unquestionable benefits (no vendor lock-in, no trust required, network effects, etc.), but if such protocols are inferior in terms of performance or cost, they won’t get adopted. It’s pretty safe to say that the Streamr Network is on par with centralized services even when it comes to latency, which is usually the Achilles’ heel of P2P networks (think of how slow blockchains are!). And the Network will only get better with time.
Then we tackled the big question: does the latency behave logarithmically?
Mean message propagation delay in Amazon experiments
Above, the thick line is the average latency for each network size. From the graph, we can see that the latency grows logarithmically as the network size increases, which means excellent scalability.
The shaded area shows the difference between the best and worst average latencies in each repeat. Here we can see the element of chance at play; due to the randomness in which nodes become neighbours, some topologies are faster than others. Given enough repeats, some near-optimal topologies can be found. The difference between average topologies and the best topologies gives us a glimpse of how much room for optimisation there is, i.e. with a smarter-than-random topology construction, how much improvement is possible (while still staying in the realm of regular graphs)? Out of the observed topologies, the difference between the average and the best observed topology is between 5–13%, so not that much. Other subclasses of graphs, such as irregular graphs, trees, and so on, can of course unlock more room for improvement, but they are different beasts and come with their own disadvantages too.
It’s also worth asking: how much worse is the measured latency compared to the fastest possible latency, i.e. that of a direct connection? While having direct connections between a publisher and subscribers is definitely not scalable, secure, or often even feasible due to firewalls, NATs and such, it’s still worth asking what the latency penalty of peer-to-peer is.
Relative delay penalty in Amazon experiments
As you can see, this plot has the same shape as the previous one, but the y-axis is different. Here, we are showing the relative delay penalty (RDP). It’s the latency in the peer-to-peer network (shown in the previous plot), divided by the latency of a direct connection measured with the ping tool. So a direct connection equals an RDP value of 1, and the measured RDP in the peer-to-peer network is roughly between 2 and 3 in the observed topologies. It increases logarithmically with network size, just like absolute latency.
Again, given that latency is the Achilles’ heel of decentralized systems, that’s not bad at all. It shows that such a network delivers acceptable performance for the vast majority of use cases, only excluding the most latency-sensitive ones, such as online gaming or arbitrage trading. For most other use cases, it doesn’t matter whether it takes 25 or 75 milliseconds to deliver a data point.
Latency is predictableIt’s useful for a messaging system to have consistent and predictable latency. Imagine for example a smart traffic system, where cars can alert each other about dangers on the road. It would be pretty bad if, even minutes after publishing it, some cars still haven’t received the warning. However, such delays easily occur in peer-to-peer networks. Everyone in the crypto space has seen first-hand how plenty of Bitcoin or Ethereum nodes lag even minutes behind the latest chain state.
So we wanted to see whether it would be possible to estimate the latencies in the peer-to-peer network if the topology and the latencies between connected pairs of nodes are known. We applied Dijkstra’s algorithm to compute estimates for average latencies from the input topology data, and compared the estimates to the actual measured average latencies:
Mean message propagation delay in Amazon experiments
We can see that, at least in these experiments, the estimates seemed to provide a lower bound for the actual values, and the average estimation error was 3.5%. The measured value is higher than the estimated one because the estimation only considers network delays, while in reality there is also a little bit of a processing delay at each node.
ConclusionThe research has shown that the Streamr Network can be expected to deliver messages in roughly 150–350 milliseconds worldwide, even at a large scale with thousands of nodes subscribing to a stream. This is on par with centralized message brokers today, showing that the decentralized and peer-to-peer approach is a viable alternative for all but the most latency-sensitive applications.
It’s thrilling to think that by accepting a latency only 2–3 times longer than the latency of an unscalable and insecure direct connecion, applications can interconnect over an open fabric with global scalability, no single point of failure, no vendor lock-in, and no need to trust anyone — all that becomes available out of the box.
In the real-time data space, there are plenty of other aspects to explore, which we didn’t cover in this paper. For example, we did not measure throughput characteristics of network topologies. Different streams are independent, so clearly there’s scalability in the number of streams, and heavy streams can be partitioned, allowing each stream to scale too. Throughput is mainly limited, therefore, by the hardware and network connection used by the network nodes involved in a topology. Measuring the maximum throughput would basically be measuring the hardware as well as the performance of our implemented code. While interesting, this is not a high priority research target at this point in time. And thanks to the redundancy in the network, individual slow nodes do not slow down the whole topology; the data will arrive via faster nodes instead.
Also out of scope for this paper is analysing the costs of running such a network, including the OPEX for publishers and node operators. This is a topic of ongoing research, which we’re currently doing as part of designing the token incentive mechanisms of the Streamr Network, due to be implemented in a later milestone.
I hope that this blog has provided some insight into the fascinating results the team uncovered during this research. For a more in-depth look at the context of this work, and more detail about the research, we invite you to read the full paper.
If you have an interest in network performance and scalability from a developer or enterprise perspective, we will be hosting a talk about this research in the coming weeks, so keep an eye out for more details on the Streamr social media channels. In the meantime, feedback and comments are welcome. Please add a comment to this Reddit thread or email [[email protected]](mailto:[email protected]).
Originally published by. Henri at blog.streamr.network on August 24, 2020.
submitted by Floris-Jan to aelfofficial [link] [comments]
Breaking down the aelf side-chainCloud computing, parallel processing, and AEDPoS have greatly improved the execution performance of any kind of smart contract, but when they are applied to enterprise-level scenarios, new problems crop up. To begin with, in software design, it is a rather bad idea to program all the methods in the same class. We always write a series of classes to inherit a base class, in order to decouple the functionalities and make the class extensible whenever needed. The same also applies to blockchain design. Second, since all the data and transactions are accessible to anyone through a blockchain explorer, if we put the smart contract and data of different enterprises or government sectors on a single blockchain, then everyone can see them, which means there will be no data privacy. Although there are encryption techniques which can mask data, such as zero knowledge proof, it is always better to put the data of different enterprises on different blockchains.
Based on these considerations, long before other projects even realized it, aelf proposed that side-chain technology should be applied to this scenario. Unfortunately, for someone who is new to blockchain, it is almost impossible to understand how side-chain works. Side-chain is not what it literally means, it is not subordinate to the main chain. On the contrary, a side chain is a blockchain distributed system with the same functions and nodes as a main chain (say, the aelf blockchain). As mentioned above, we can put the data of different enterprises on different blockchains. This means we can build many blockchains, and work magic (of course not magic in its literal sense) to make these chains connect to the aelf main chain (in fact, we can call any of these blockchains a main chain and the rest side chains). Currently, the most popular method of connecting any two blockchains, which we also call cross-chain, is using a middle-man. When we want to use bitcoin to play a decentralized game on Ethereum, we need to send a transaction with some amount of bitcoin to a locking bitcoin address, then the middle-man will exchange the locked BTC for ETH at a certain exchange rate and allocate to you the equivalent amount of ETH on Ethereum, which you can use for playing games.
But in aelf, we use a metadata indexing method, which is more straightforward. Unlike other projects who built on the blockchains of those already successful projects (such as Ethereum or the HyperLedger fabric framework for consortium blockchains), the aelf team has writen all the code and build the infrastructure from scratch. From the beginning, the aelf team has defined how the data structure of a blockchain, a block, a transaction etc. should look like in C#. In an aelf blockchain data structure, there is an attribute called blockchain ID, which is a unique hash; and in block data structure, there are several attributes called blockchain ID , Merkle tree root and related side chain block list. There is also one more important thing: all of aelf’s data structures are serialized and stored in Redis (a popular key-value pair database system), so is the side chain information. As a result, as the aelf main chain is growing with block production by BPs, other side chains can send transactions to cross-chain contracts, which then execute the related code to connect to the main chain’s network port and request the main chain to index the side chain block and pay the indexing fee.
The core issue here is how to index a side chain: when a main chain (the block data structure on the main chain, or the data records with main chain ID in Redis), receives a request from a side chain, it adds the side chain’s block head data structure to the related side chain block list, which means theoretically we have indexed or related a side chain. We have mentioned that there is also a blockchain ID in each block, this attribute allows a main chain to index blocks from different side chains. When a user on a main chain wants to access data on a side chain or vise versa, they just need to find the target block on the main chain and its related side chain block list, and then find the target block on the side chain via key indexing.
As we will explain later, blockchains for different application scenarios generate blocks at different speeds. Under such circumstances, a chain with slower speed might index many blocks from a chain that produces blocks faster. This method can be applied to scenarios such as forking.
In practice, we can build any number of blockchains, and relate it via indexing to the aelf main chain, with a specific category of smart contracts running on each of them. For example, we can allow only banking-related smart contracts deployed on a specific blockchain, and e-commerce smart contracts on another. Our whitepaper summarizes it best:
One chain, one contract.
Moreover, the indexing method can make many blockchains into a hierarchical tree structure, the root being the so-called main chain. That’s because a related blockchain can then again index another blockchain as its side chain, and the process can keep going on. Logically, this is in perfect accordance with hierarchical taxonomy, for example, the financial sector has many subcategories, such as banking, lending, investment and insurance, and under investment banking, there are venture capital, investment bank etc… Each subcategory is supported by an indexed blockchain.
So how do these blockchains collaborate in a distributed system? First we need to be know that any node in a distributed system is just a software instance running on your computer, or a process. In TCP/IP, a node is allocated a port number, so we can run any number of this type of instances on a computer. However, each instance has its own port number: we can run several blockchain nodes, one IPFS node, one bit-torrent node and etc. simultaneously. In aelf, you should first start a main chain instance, and then you can build and run a side chain instance. Transactions broadcast on the side chain are collected by the BP nodes (block production nodes) on the main chain. When smart contracts deployed on the side chain is triggered, the BP and full nodes on the main chain will run them.
Aelf — a blockchain based operating systemTo perfect the design of our software system, aelf made the system extensible, flexible and pluggable. Just as there are thousands of Linux OS with only one Linux kernel. As Ethereum Founder Vitalik Buterin has explained, Ethereum can be seen as a world computer because there are lots of smart contracts running on it, and the contract execution results are consistent in all the distributed systems around the world. This idea is also embedded in aelf’s system and we call it a “blockchain infrastructure operating system”, or a distributed operating system.
Just like any OS, aelf has a kernel and a shell. In fact, aelf’s kernel is not something like a Linux kernel, it is just an analogy. There is a special concept in aelf’s kernel called the minimum viable blockchain system, which defines the most fundamental aspect of a blockchain. If a developer wants to create a new blockchain system or a new blockchain project, he does’t have to start from scratch, instead, he can directly extend and customize using the aelf blockchain open-source code. The technologies described above are all included in the minimum viable blockchain system. With these, anyone can customize:
SummarySo this is our breakdown of the aelf blockchain whitepaper. In previous articles, we first introduced two basic concepts which are often misinterpreted by other articles. After helping you get these two concepts straight, we then introduced aelf’s vast arsenal of powerful technology. If these articles helped you understand the aelf blockchain better, then I have reached my goal. But I must advise you to read the whitepaper for a more detailed explanation. With all this knowledge at your disposal, I believe you will be much more comfortable developing DApps on aelf.
Check Part 1 here: https://medium.com/aelfblockchain/a-breakdown-of-the-aelf-blockchain-whitepaper-part-1-a63fc2e3e2e7
submitted by xSeq22x to QuantNetwork [link] [comments]
AX Trading LLC (AX), a technology-enabled registered broker-dealer and Alternative Trading System (ATS) operator, today announced a strategic partnership with Quant Network a pioneering technology company providing financial and regulatory technology as well as interoperability in financial services, payments and capital markets infrastructure. Through this partnership, Quant Network’s technology, Overledger a blockchain operating system, will enable universal interoperability for regulatory-compliant security tokens and digital assets to be traded on AX ATS, a regulated secondary trading market. AX intends to integrate Overledger to help foster the evolution of traditional capital markets infrastructure to facilitate the mass implementation of interoperable regulated digital assets. With the increased market adoption of digital assets and banking “coins” such as JPMorgan Coin, AX and Quant Network are at the forefront to enable the transferability and movement of digital assets. George O’Krepkie, AX CEO said: “we look forward to partnering with Quant. Their technology will allow our blockchain agnostic security token exchange to communicate seamlessly with issuers, traders, investors, and regulators across different blockchain protocols. This is a key technological breakthrough that will help us bring the benefits of security tokens to Main Street and Wall Street.” It is expected that the first interoperable digital asset offering may commence as soon as January 2020, and that the AX Trading ATS may be ready to enable and list interoperable digital assets and securities in 2020.Let’s have a closer look at what that means to truly appreciate the significance of the partnership by covering the basics for those not familiar with wall street.
What is an Institutional Investor / Trader?An institutional investor is an organization that invests on behalf of the organization's members. They consist of hedge funds, banks, investment banks, pension funds, insurance companies, endowment funds, or any other type of money management firm.
Institutional investors account for about three-quarters of the volume on the New York Stock Exchange (which alone handles more than $20 Trillion a year in volume). In the US, Institutional investors own about 80 % of the total market value of the equity (stock) market, which globally is worth more than $73 trillion.
Wall Street refers to the institutional investors I mentioned above whereas Main Street refers collectively to members of the general public who are not accredited investors and the overall economy as a whole.
Whilst the Equity Market is huge, Institutional investors also invest in other securities which are prime to be tokenised such as Real Estate Market (Globally worth $217 trillion), the Debt Market (Globally worth $215 trillion) and the Derivatives Market (Low end estimates at $544 trillion and high-end estimates at $1.2 quadrillion). All of which makes the current market cap for cryptocurrencies look like a drop in the ocean.
Who are AX Trading?AX Trading is a SEC-registered broker-dealer and Alternative Trading System (ATS) Operator. They are a member of FINRA (Financial Industry Regulatory Authority)and SIPC ( Securities Investor Protection Corporation) regulated authorities. The SEC has some of the most stringent regulations in the world for listing securities and there are fewer than 50 SEC-registered Alternative Trading System Operators in the United States, of which only a handful are currently implementing Digital Assets. Others are awaiting regulatory approval with Coinbase, Circle etc are all looking at getting into this huge market.
AX Trading have investors and sponsored brokers including the likes of Credit Suisse, (a multinational investment Bank and Financial services company worth $27.5 billion). AX currently have over 800 Institutional traders (these are not individuals, but corporations such as hedge funds, banks, investment banks, pension funds, insurance companies, endowment funds etc).
AX Trading have also partnered with Euronext, the largest Stock Exchange in Europe with a market cap of $4.65 trillion as of 2018, in the creation of Euronext Block which utilises AX Trading.
What is an Alternative Trading System?An Alternative Trading System (ATS) is an SEC-regulated trading venue which serves as an alternative to trading at a public exchange. ATS account for much of the liquidity found in publicly traded issues worldwide. They are known as multilateral trading facilities in Europe, electronic communication networks (ECNs), cross networks, and call networks
AX is the world’s first “Electronic Trading Network” (ETN) where institutional traders can proactively connect and trade with other counterparties in a secure environment. Unlike traditional stock exchanges/ECNs that show orders to everyone and traditional dark pools/crossing systems that show orders — presumably — to no one, AX allows institutional traders to pick and choose WHOM they want to notify and also WHAT information they want to share with them.
Institutional investors may use an ATS to find counterparties for transactions instead of trading large blocks of shares on national stock exchanges. These actions may be designed to conceal trading from public view since ATS transactions do not appear on national exchange order books. The benefit of using an ATS to execute such orders is that it reduces the domino effect that large trades might have on the price of an equity.
How does AX Trading Work?The AX Trading process begins when one trader sends an “initiated” order to AX. The order can be routed to the AX ATS via one of our broker sponsors such as Credit Suisse. The initiated order triggers a “Call Auction” on AX, a period of time when the order will rest in AX to be matched against other orders from auction responders.
The Initiator of an AX auction decides who they want to invite to participate in the auction, whether they be all 800+ institutional members or targeted to specific ones, as well as how much info they want to disclose about the order. Based on these instructions, the AX ATS then notifies the members inviting them to participate in the trade.
The invited members can then participate in the trade by either placing buy orders of their own or placing sell orders. At the end of the AX auction period, all orders are brought together, and a match is performed.
In the traditional, continuous market with displayed bids and offers, traders are often chasing liquidity. In other words, the price may move away from them the more they buy or sell to what is commonly called “market impact.” On AX, the advantage of their call auction model is it brings liquidity — in the form of participant orders to the buyer rather than them chasing liquidity.
What is a Security Token?Security Tokens are different than Utility Tokens or Cryptocurrencies. A security token is a digital representation of a traditional security. It may represent shares in a company, interest in a fund, real estate, art collectables, or essentially any asset a party can own. Anthony Pompliano wrote an article explaining tokenised securities in more detail which you can see here
Security Tokens are digital assets subject to federal security regulations. In layman terms, they are the intersection of digital assets (tokens) with traditional financial products — a new technology improving old things. If cryptocurrencies like Bitcoin are considered “programmable money” then you can consider Security Tokens a version of “programmable ownership.” This means that any asset with ownership can and will be tokenized (public & private equities, debt, real estate, etc).https://preview.redd.it/21cz6zvus0m31.png?width=569&format=png&auto=webp&s=883eb844e1061cddd585903549dde829098765c2
Quant Network community member David W also wrote an excellent piece on the benefits of tokenisation of assets in a lot more detail than what I will briefly cover here and strongly recommend you check it out.
The Tokenisation of assets is therefore inevitable, because it is a better way to record, exchange and monitor asset ownership for all parties involved. The amounts at stake represent many hundreds of trillions of US dollars
What are the benefits of a security token?
Security Token Issuance PlatformsSecurity token issuance platforms allow issuers to issue Security tokens that represent the security such as Shares in their company etc in return for capital. This is known as a Primary Market. Importantly it’s not just the issuance that they look after, it’s the whole life cycle of a digital security to ensure they remain continuously in compliance as they are traded etc. They also provide reporting to the issuer so they can see who owns the tokens and what dividends to pay out.
Securitize are one of the leading security tokens issuing platforms. They have created the DS Protocol, a blockchain agnostic protocol for security tokens which manages the whole lifecycle of a digital security, ensuring it remains continuously in compliance. They have issued a number of security tokens on the Ethereum network as well as recently working with IBM to tokenise the Corporate Debt Market (worth $82 Trillion). On the back of this they joined Hyperledger, an open source project which includes Enterprise blockchains such as Hyperledger Fabric which IBM is heavily involved with.
They recently also became the first SEC-registered transfer agent, which means Securitize can now act as the official keeper of records about changes of ownership in securities.
There are many companies in this sector which are utilising various blockchains, Other examples include:
Trading VenuesWhilst the issuance platforms above generally also include their own exchange where the token can be traded on, secondary markets such as those offered through traditional stock exchanges and Alternative Trading Systems provide significantly more liquidity.
Traditional Stock Exchanges have been very active in blockchain with some going through proof of concepts, to those like SIX SDX Digital Exchange which is due to launch later this year. They are using various blockchains and cover the full process from Issuance, Trading and Post Trade / Settlement services. I have briefly outlined which blockchain they are using / testing with along with source to read more about it below:
Post Trade — Central Security DepositoriesSituated at the end of the post-trading process, CSDs are systemically important intermediaries. They thereby form a critical part of the securities market’s post-trade infrastructure, as they are where changes of securities ownership are ultimately registered.
CSDs play a special role both as a depository, involving the legal safekeeping and maintenance of securities in a ‘central depository’ on behalf of custodians (both in materialised or dematerialised form); as well as for the issuer, involving the issuance of further securities by issuers, and their onboarding onto CSDs’ platforms.
CSDs are also keeping a number of other important functions, including: dividend, interest, and principal processing; corporate actions including proxy voting; payment to transfer agents, and issuers involved in these processes; securities lending and borrowing; and, provide pledging of share and securities.
Blockchain technology will enable real-time settlement finality in the securities world. This could mean the end of a number of players in the post-trade area, such as central counterparty clearing houses (CCPs), custodians and others. Central Security Despositories (CSD) will still play an important role according to reports:
“CSDs could have an important role to play in a blockchain-based settlement system. As ‘custodians of the code, CSDs could exercise oversight of, and take responsibility for, the operation of the relevant blockchain protocol and any associated smart contracts.” Euroclear Report
Another group of 30 central securities depositories (CSDs) in Europe and Asia are researching possible ways to “join hands” in developing a new infrastructure to custody digital assets. The CSDs will attempt to figure out how to apply their experience in guarding stock certificates to security solutions for crypto assets.
“A new world of tokenized assets and blockchain is coming. It will probably disrupt our role as CSDs. The whole group decided we will be focusing on tokenized assets, not just blockchain but on real digital assets.”
You can read more about how blockchain will affect CSD’s here
Examples of CSD’s in blockchain
The Importance Of Interoperability
The evolution of DLT and the wide adoption across industries and across different market segments is resulting in many different ledgers networks, but the ultimate promise of DLT can only be realized when all ledger networks can seamlessly interoperate. — from the recent DTCC whitepaper with AccentureIt’s clear from the above that interoperability will be crucial in order to unlock the true potential of Distributed Ledger Technology. Issuance platforms will seek to interoperate with as many secondary exchanges as possible to provide maximum liquidity for issuers. Issuance platforms and secondary exchanges are each using a wide range of different blockchains that all need to interoperate as part of the trade process. CSD’s will also need to have interoperability between other CSD’s as well as to the secondary exchanges (again each using different blockchains).
Enter Quant Network’s OverledgerQuant Network’s blockchain operating system, Overledger, provides interoperability between any current and future distributed ledger technology as well as easily connecting Off Chain / Legacy networks as well as plans to connect directly to the Internet. Within 10 months it has proven it can provide interoperability with the full range of DLT technologies from all the leading Enterprise Permissioned blockchains such as Hyperledger, R3’s Corda, JP Morgan’s Quorum, permissioned variants of Ethereum and Ripple (XRPL) as well as the leading Public Permissionless blockchains / DAGs such as Bitcoin, Stellar, Ethereum, IOTA and EOS as well as the most recent blockchain to get added Binance Chain. All without imposing restrictions on connected chains, being Internet scalable and able to easily integrate into existing networks / infrastructure.
Overledger a blockchain operating system, will enable universal interoperability for regulatory-compliant security tokens and digital assets to be traded on AX ATS, a regulated secondary trading market. AX intends to integrate Overledger to help foster the evolution of traditional capital markets infrastructure to facilitate the mass implementation of regulated digital assets. With the increased market adoption of digital assets and banking “coins” such as JPMorgan Coin, AX and Quant Network are at the forefront to enable the transferability and movement of digital assets
Overledger enables Universal Interoperability where digital assets can move across blockchains so that they can interact with smart contracts on different blockchains. It does this by locking the asset on one blockchain and then representing it on another blockchain either by creating a representing token or representing it via metadata. This will enable all of these different parties such as Issuance platforms, Exchanges, CSD’s, traders etc to move the digital asset from their respective blockchain onto AX Trading’s platform for secure, immediate and immutable trading to take place. Potentially it would even allow Digital Assets / Securities to settled on a public permissionless blockchain such as the recently connected Binance Chain in a completely safe, secure and compliant way.
Regulators would be able to run a node and view transactions in real time ensuring that compliance is being kept. Potentially they could also benefit from using Quant Networks Multichain Search capability http://search.quant.network/ to be able to fully track assets as they move across blockchains.
George O’Krepkie, AX CEO said: “we look forward to partnering with Quant. Their technology will allow our blockchain agnostic security token exchange to communicate seamlessly with issuers, traders, investors, and regulators across different blockchain protocols. This is a key technological breakthrough that will help us bring the benefits of security tokens to Main Street and Wall Street.”
SecurrencyAX Trading have also partnered with Securrency (who have previously tokenised over $260 million in real estate assets). Securrency provide a protocol that enables security tokens to remain in compliance regardless of what blockchain the token is on. Due to the layered approach that Overledger has adopted from the learnings of TCP/IP, this protocol can be easily integrated on top of Overledger to enable security tokens to move across blockchains as well as ensuring they remain in compliance with regulations programmed into the token.
Delivery vs Payment (DvP)
A DvP transaction involves the settlement of two linked obligations, namely the delivery of securities and the payment of cash. DvP avoids counterparties being exposed to principal risk, i.e. the risk that the seller of securities could deliver but would not receive payment or that the buyer of securities could make payment but would not receive delivery. Following this requirement, a DvP securities settlement mechanism has to ensure that the delivery of securities and the payment of cash are linked in a way where one leg (obligation) of the securities trade is conditioned to the final settlement of the other leg (obligation) of the trade. Thereby final settlement is defined as “the irrevocable and unconditional transfer of an asset or financial instrument, or the discharge of an obligation by the FMI or its participants in accordance with the terms of the underlying contract”. — STELLA — a joint research project of the European Central Bank and the Bank of JapanWe have seen how Overledger can provide interoperability for the securities to move across Issuers platforms, integrate with Stock exchanges, Central Security Depositories and AX Trading. Now we need to be able to ensure that payment is guaranteed and in a way that offers immediate settlement which is irrevocable. To do this we need to represent FIAT on the blockchain so that it can interact with smart contracts and settle transactions on the blockchain.
J.P.Morgan’s CoinJ.P.Morgan is the largest bank in the United States and ranked by S&P Global as the sixth largest bank in the world by total assets as of 2018, to the amount of $2.535 trillion.
J.P. Morgan was the first U.S. bank to create and successfully test a digital coin representing a fiat currency. The JPM Coin is based on blockchain-based technology enabling the instantaneous transfer of payments between institutional clients.
With J.P.Morgan’s $2.6 trillion balance sheet, expertise in blockchain and global payments network, J.P. Morgan can seamlessly and securely transfer and settle money for clients around the world. J.P. Morgan are supervised by banking regulators in the United States and in the international jurisdictions in which it operates.
How does JPM Coin work?A Buyer purchases JPM coins in advance which get represented on the Permissioned Quorum blockchain ($1 =1 JPM Coin). Quant Network’s Overledger could then provide interoperability to lock those tokens on Quorum and represent those onto another blockchain / AX Trading’s Network. By being able to represent securities and FIAT on the same blockchain (even though the underlying assets are on different blockchains) this provides instant finality / settlements to occur.
Once the seller receives the JPM coin in exchange for the securities they have sold they will be able to redeem them for USD. It also doesn’t necessarily mean that they have to have a JP Morgan account to redeem them, you could imagine in the future that the Bank instead redeems the JPM Coin and credits the users account. Similarly the buyer of the security token redeems the represented token and unlocks the security token on the original blockchain.
You can read more about JP Morgan’s Coin here as well as its use cases
J.P Morgan is betting that its first-mover status and large market share in corporate payments — it banks 80 percent of the companies in the Fortune 500 — will give its technology a good chance of getting adopted, even if other banks create their own coins. “Pretty much every big corporation is our client, and most of the major banks in the world are, too,” Farooq said. “Even if this was limited to JPM clients at the institutional level, it shouldn’t hold us back.”Overledger enables different securities tokens / digital coins representing FIAT currencies to be brought together from the various permissioned / permissionless blockchains onto one platform where trading / settlement can take place. Overledger is the only technology that can do this today across the leading permissioned and permissionless blockchains as well as existing networks, all in a secure, scalable and easy to integrate way.
Quant Network are working with AX Trading to bring more digital assets, securities and tokenised assets to their existing 800 institutional traders in an already live and connected FINRA and SEC regulated exchange. AX Trading is not just about trading securities but other digital assets such as Bitcoin, Ethereum and potentially even Quant in the Future.
This is a multi-trillion dollar market with huge global enterprises, traditional exchanges and global banks are all adopting DLT at a rapid pace and going into production at scale in a matter of months, examples include the NYSE Bakkt launching Bitcoin futures later this month, Swiss Stock Exchange ($1.6 Trillion market Cap) is due to launch their digital exchange running on Corda (SDX) by the end of the year. The DTCC are due to launch their Trade Information Warehouse which processes $10 Trillion of cleared and bilateral derivatives by the end of the year. JP Morgan who transfer $6 Trillion every day are due to launch their JPM coin at the end of year and AX Trading is due to offer their first digital asset by January 2020.
Quant Network’ Overledger enables the bridging of traditional finance infrastructure with the new decentralised finance infrastructure DeFi of the future, helping to redefine Wall Street and Capital Markets.
https://medium.com/@CryptoSeq/large-enterprise-adoption-of-blockchain-is-happening-enabled-by-quant-networks-overledger-32321b650115submitted by xSeq22x to QuantNetwork [link] [comments]
This is Part Two in the mini-series looking at Quant Network. You can see Part One here as well as links to other articles at the bottom of this post.
Quant Network have achieved incredible levels of adoption since launching Overledger less than a year ago. Their growth strategy is to partner with multinational global organisations with huge amounts of employees to then host / implement / take Overledger to each of their own clients. So one Partnership, leads to exponentially more and is the fastest way to scale rather than trying to partner with each customer individually. This is how companies such as Oracle grew so fast and Microsoft with their Partner Network.
“ These are multinational global organisations with 100,000 + employees, this is the scale that we are working towards to take Overledger to the mass market. We can’t do it one by one in each country and sign them up but we can partner with someone that has 100 customers and they can take it to all their customers as well which helps with the adoption of our technology” — Gilbert VerdianLet’s start with arguably the biggest partnership for any Blockchain company listed on Coinmarketcap, the leading Financial Network Provider in Europe, SIA.
“Since the European launch of our private infrastructure SIAchain, we are at the forefront of innovation in blockchain technology with the aim of supporting financial markets with a high-performance and secure architecture and a clear governance model. We actively continue on our path of innovation and the achievement of a fully interoperable blockchain network is the foremost objective we want to reach with the collaboration of Quant Network and its disruptive vision on DLT”, says Daniele Savarè, Innovation & Business Solutions Director, SIA.https://youtu.be/0cNmGrLPoTo
So what we’ve done is instead of just announcing one client and one thing, we’re announcing that we’re working with SIA. So, SIA is the leading European payment infrastructure. And what we’re doing with SIA is interconnecting blockchain networks with SIA, and doing settlements, which are central bank settlements, with the central bank in Italy. So what Overledger is doing is we’re actually bringing blockchain and interoperability to all of SIA’s clients, which are 580 banks. So, Overledger could be rolled out to all these institutions, financial services, banks, at scale, and have interoperability to get the benefits of this.To read more see my other article which goes into more details about SIA here
AX TradingQuant Network are working with AX Trading to bring more digital assets, securities and tokenised assets to their existing 800 institutional traders in an already live and connected FINRA and SEC regulated exchange. AX Trading is not just about trading securities but other digital assets such as Bitcoin, Ethereum and potentially even Quant in the Future.
Overledger a blockchain operating system, will enable universal interoperability for regulatory-compliant security tokens and digital assets to be traded on AX ATS, a regulated secondary trading market. AX intends to integrate Overledger to help foster the evolution of traditional capital markets infrastructure to facilitate the mass implementation of regulated digital assets. With the increased market adoption of digital assets and banking “coins” such as JPMorgan Coin, AX and Quant Network are at the forefront to enable the transferability and movement of digital assetsGeorge O’Krepkie, AX CEO said: “we look forward to partnering with Quant. Their technology will allow our blockchain agnostic security token exchange to communicate seamlessly with issuers, traders, investors, and regulators across different blockchain protocols. This is a key technological breakthrough that will help us bring the benefits of security tokens to Main Street and Wall Street.”
To read more see my other article which goes into more details about Wall Street 2.0: Enabled by Quant Network’s Partnership with SEC & FINRA registered AX Trading here
At Sibos 2019 Oracle is excited to feature 10 of our fintechs that have proven they are enterprise cloud ready and span a wide range of digital transformation themes including several available on Oracle’s Open Banking API ecosystem. Discover how you can accelerate your digital banking journey with a wide range of proven Oracle fintech solutions that meet the security, performance, and compliance needs for today’s Adaptive Bank — Oracle SIBOS 2019 Blockchain Enables Trustworthy Transactions The potential uses of blockchain technologies are seemingly endless, from providing easy access to online payments to creating connected economies. But one of blockchain’s standout promises is to automate trust by providing an incorruptible platform for transactions. Quant’s Overledger is the world’s first blockchain operating system. It’s designed to provide any network in the world with a gateway to all other blockchains, and therefore enable companies to develop new solutions by incorporating features from multiple blockchain applications. — https://blogs.oracle.com/startup/innovation-pays%3a-the-five-fintech-startups-making-money-more-interestinghttps://preview.redd.it/bv0hxxr84pn31.png?width=1100&format=png&auto=webp&s=8e67dd4a7b23eae444ed1ed9e7f7bda972236280
Payson Johnston, President and CEO of Crowdz, a Silicon Valley trade-finance and financial-technology company, stated that, “Although Crowdz uses the Ethereum blockchain as the foundation for our Invoice Auction Exchange, we have needed a solution that allows for invoices and other documents to be transferred from one blockchain to another — for example, among Hyperledger, Corda, and EOS. With the Overledger solution from Quant Network, it is now possible to pass data among different blockchains. Crowdz looks forward to working with Quant Network to enable the true multi-blockchain environment that our customers demand.”You can read more about the announcement here
AuCloud and UKCloud
Scott Wilkie, Director of AUCloud stated that Australian Government, Department of Defence and major industries are using or testing blockchain to interact with their supply chain, critical infrastructure, national record keeping and financial services. These organisations require the interoperable functionality that can only come with an operating system like Overledger and the security of the leading sovereign Australian cloud platform. Without Overledger, none of these projects or systems will be able to communicate with each other or enable cross party collaboration. Brad Bastow, CTO AUCloud (previously CTO Department of the Prime Minster & Cabinet) stated that “applying world leading blockchain technologies to enhancing the cyber security of cloud IaaS and PaaS can significantly improve the ease of adoption and reduces risks for all government users and citizens. We aim to bring the most effective and assured technologies as-a-Service and Quant Network have some of the most advanced blockchain technology in the world in this respect.”You can read more about the announcement here
“AllianceBlock will use Overledger to leverage multiple blockchains and create multi-chains token swaps. This partnership offers the possibility to open a new set of real-world applications leveraging different features from different chains. AllianceBlock is delighted about this partnership which will help blockchain projects and SMEs wield blockchain technology very easily” said Rachid Ajaja, Co-founder of AllianceBlock.
Jiangsu Huaxin Blockchain Institute
Atlantic Power Exchange
Managing Director of Rockefeller Capital Joins the Board of Quant Network
“I’m delighted to join the Board of Quant Network. This is an exceptional team of experienced professionals in the cybersecurity and blockchain industry.”Guy Dietrich recently personally attended meetings with the UK’s Financial Conduct Authority (FCA) with Gilbert.
International Organization for Standardization (ISO)Gilbert Verdian is the founder of ISO TC 307, the global standard for Blockchain and Distributed Ledger Technologies which 55 countries are currently working towards. Gilbert is the chairman for the TC 307 Working Group for Interoperability of blockchain and distributed ledger technology systems
European’s Union INATBAQuant Network is a founding member in the European Union’s launch of the International Association for Trusted Blockchain Applications (INATBA). Other members of INATBA include Accenture, Accord Project, Alastria,Banco Santander, BBVA, Consensys, Enterprise Ethereum Alliance, Fujitsu, IOTA, Ledger, SAP, SIA, Swift, Telefonica, We.Trade and many more. INATBA is a collaboration of 26 EU countries to develop EU blockchain regulation and prepare the launch of EU-wide blockchain applications
You can read more about it here and here
As well as many being worked on and yet to be publicly announced:
we are really looking at ASIA, especially around Singapore, Hong Kong and we are working with partners to go there, just yesterday we had a meeting with a $8 billion company based in the ASIA region and they want to use Overledger for their clients and they are going to help us expand to that region, once we partner with the right bigger playershttps://youtu.be/G1b9TX6rcuI
2 of the Big 4 Global Consultancy Firms are taking Quant Network’s Overledger to their clients.The Big 4 Global Consultancy firms are huge and consist of Deloitte, PwC, EY and KPMG. They offer a range of services from offering consultancy advice on what to use, assisted prototyping right through to the delivery of production-ready enterprise solutions. Previously Gilbert was the Director of Cybersecurity at PwC and a Senior Manager of Security at EY plus Lara Verdian was the director for Deloitte Access Economics at Deloitte.
Quant Network are currently working with 2 of the above 4 global consultancy firms who are taking Overledger to their clients.
As well as many other consultancy firms:
ExchangesThey are also in talks with Traditional Exchanges such as the Swiss Stock Exchange SDX Platform and others as well as Large asset management firms
As well as various Governments including the Australian Treasury with DATA61 regarding open banking and consumer data rights, the UK’s HMRC, Central Banks, Global companies in Korea, Insurance Companies, Airlines and Logistic companies.
It’s truly remarkable what they have achieved in such a short space of time, working non-stop all around the globe, working with enormous Global organisations, Leading Financial Institutions, Governments and Health. Quant Network is enabling the mass adoption of Blockchain, bridging all blockchains and offchain networks together (as well as plans to connect directly to the Internet) to achieve the true potential of this revolutionary technology.
In the last article of this mini-series I will take a closer look at the tokenomics of the QNT token and why there isn’t another utility token with as much value as QNT. With a tiny total supply of just 14.6 million QNT tokens, with no inflation, Supply reducing further as tokens are taken out circulation with licensing and strong demand / usage for the token, as well as minimum QNT holdings for wallets to benefit from Universal Interoperability.
Part One — Blockchain Fundamentals
Part Two — The Layers Of Overledger
Part Three — TrustTag and the Tokenisation of data
Part Four — Features Overledger provides to MAPPs
Part Five — Creating the Standards for Interoperability
Part Six — The Team behind Overledger and Partners
Part Seven — The QNT Token
Part Eight — Enabling Enterprise Mass Adoption
Quant Network Enabling Mass Adoption of Blockchain at a Rapid Pace
Quant Network Partner with SIA, A Game Changer for Mass Blockchain Adoption by Financial Institutions
Part One of this mini Series — What is a blockchain operating system and what are the benefits? Introducing Overledger from Quant Network
Wall Street 2.0: How Blockchain will revolutionise Wall Street and a closer look at Quant Network’s Partnership with AX Trading
"There is no direct cooperation between Alibaba and NEO/Onchain, other than their mailbox service is using Law Chain to provide attested email service. In terms of Microsoft, yes we have cooperation with Microsoft China because NEO is built with C# and .NET Core, and NeoContract is the first in the world to support writing smart contract with C#"https://www.reddit.com/NEO/comments/6puffo/we_are_da_hongfei_and_erik_zhang_founders_of_neo/dksm5ga/
"We have pretty good communication with government, with regulators. They don't have any negative impression with NEO and they like our technology and the way we deal with things. Regulation is not an issue for us"https://www.youtube.com/watch?v=qpUdTIQdjVE&feature=youtu.be&t=1m16s
“Before they started cleaning up the market, I was asked for information and suggestions” “I do not expect the government to call me in the short-term and say, ‘Let’s use NEO as the blockchain technology infrastructure of China.’ But in the medium term? Why not? I think it’s possible.”https://medium.com/@TheCoinEconomy/neo-founder-da-hongfei-advised-china-on-ico-exchange-ban-says-govt-4631b9f7971
Regardless of Bitcoin’s highly volatile cycles it has gone through since its birth in 2009, we can thank this digital asset as it shed the light on the most disruptive technology of the 21st century — Blockchain — which not only stayed within the field but also gained wider adoption across various industries.submitted by theblockbox to u/theblockbox [link] [comments]
It all started with the vision of putting the control back in the people’s hands in terms of digital currency. However, nowadays Blockchain is facilitating major centralized systems but has also automated numerous FinTech aspects such as transactions and the implementation of improved procedures.
Decentralization, which is the core concept of a blockchain, means that power is in the hands of the participating parties. Everyone in the network can exercise equal authority and can read and write transactions on it.
Nevertheless, this property didn’t get through to some organizations and enterprises that handle sensitive information. This has prevented them from using blockchain for a long time. But in the light of the huge benefits that blockchain may offer to these enterprises, industry stakeholders built a blockchain that functions with controlled decentralization, and they named it as private/permissioned blockchain.
Even though private blockchains marginally deviate from the true notion of blockchain, they have led to many conglomerates joining the blockchain bandwagon, thus sparking a wider adoption of the technology.
To better understand how private blockchains differ from the classical public blockchains, let’s dive into more details.
Spotting the Difference
AccessibilityPublic blockchains, as the name suggests, are simply that. Public. All participants on a public blockchain system have access to the data stored on the blockchain. They also have an equal opportunity to become a node or a miner on the network in order to validate transactions.
In contrast, a private blockchain is a so-called “distributed ledger” with a central entity governing the power to control as to who can view or validate transactions on them. There are strictly defined criteria which an individual or an entity needs to obey in order to become a node on a private blockchain network. The process often comes with a KYC process that seeks complete validation of a node’s identity.
Transaction SpeedAnother chief alteration between a private and a public blockchain is their scalability, often referred to as the transaction speed. Public blockchains usually have a relatively slow transaction speed in comparison to the private blockchains.
A blockchain has three major building blocks: security, decentralization, and scalability. Blockchain enduring the power in all three of these is yet to emerge. This creates a small paradox, as security is traditionally an integral part of a Blockchain due to its cryptographic design, so it’s either of the two remaining aspects that are fractionally compromised to leverage the other one.To put this in perspective, consider the Bitcoin and Ethereum blockchain. These two are the most known public blockchains with utmost decentralization. But this decentralization results in transaction speed between seven to 14 transactions each second, which is extremely slow.
Now consider the Hyperledger Fabric, which is a private blockchain. It is said to deliver a transaction speed of over 3,500 per second.
What About Public Blockchains with a High Scalability?It can be reasoned that there are also those public blockchains with a transaction speed of over 2,000 to 3,000 transactions per second. But these are only public in the sense that anyone can view the transactions recorded on the blocks while the power to validate those transactions are still concentrated in a smaller, selective group of nodes.
This is perfectly illustrated in the case of the EOS blockchain which uses a DPoS (Delegated Proof of Stake) consensus mechanism, where only 21 block producers/nodes represent a greater number of stakeholders and are responsible for validating transactions on the network.
What empowers the Public Blockchain to gain an edge?Simply put, they’re the truest of blockchains. In any case, to sum it up precisely, here are the merits that public blockchains encompass:
· Readily available: As prior mentioned, anyone can participate in a public blockchain network to view and validate transactions
· Decentralized and Distributed: No central body controls the processes of a public blockchain, which makes it perfectly aligned with the ethos of a blockchain.
· Immutable and Secure: To validate a transaction on a blockchain, more than 51% of the nodes must approve and validate the transaction. These nodes are random individuals and entities spread across the globe. So, once a transaction is recorded, it becomes impossible for another 51% or more nodes to agree to alter the data of a particular block at the same time.
Enterprise-centric technology — Private Blockchain AdvantagesAs already mentioned, private blockchains have become the go-to blockchains for enterprises, especially those in the FinTech industry. Let’s see why:
· Private (of course): Especially in the past couple of years, enterprises took a big initiative in preventing public display of users’ personal data. This makes private, that is, permissioned blockchain a perfect fit for them.
· Highly Scalable: Private blockchain, owing to the use of only a few nodes, can handle a high number of transactions each second.
· Affordable: Unlike public blockchains, private blockchains mostly govern their own nodes and they do not have to pay out incentives to miners validating the transactions.
Final NoteBoth private and public blockchains must be appraised as two different systems altogether, and yet their potential to disrupt a plethora of industries has started to take shape. Regardless of their strengths and weaknesses, private and public blockchain development is being continually fine-tuned to meet the demand of the industry leaders in order to put them in the right use.
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