Aeternity Whitepaper

Since the introduction of Ethereum in 2014 there has been great interest in decentralized trustless applications (smart contracts). Consequently, many have tried to implement applications with real world data on top of a blockchain. We believe that storing the application’s state and code on-chain is wrong for several reasons.

We present a highly scalable blockchain architecture with a consensus mechanism which is also used to check the oracle.

This makes the oracle very efficient, because it avoids layering one consensus mechanism on top of another. State channels are integrated to increase privacy and scalability. Tokens in channels can be transferred using purely functional smart contracts that can access oracle answers. By not storing contract code or state on-chain, we are able to make smart contracts easier to analyze and faster to process, with no substantial loss in de facto functionality.

Applications like markets for synthetic assets and prediction markets can be efficiently implemented at global scale. Several parts have proof-of-concept implementations in Erlang. Development tools and application essentials such as a wallet, naming and identity system will also be provided.

Zcash (ZEC) Whitepaper

Zcash (ZEC) Whitepaper introduction:
Bitcoin is the first digital currency to see widespread adoption. Although payments are conducted between pseudonyms, Bitcoin cannot offer strong privacy guarantees: payment transactions are recorded in a public decentralized ledger, from which much information can be deduced. Zerocoin (Miers et al., IEEE S&P 2013) tackles some of these privacy issues by unlinking transactions from the payment’s origin. Yet it still reveals payment destinations and amounts, and is limited in functionality.

In this paper, we construct a full-fledged ledger-based digital currency with strong privacy guarantees. Our results leverage recent advances in zero-knowledge Succinct Non-interactive ARguments of Knowledge (zk-SNARKs).

We formulate and construct decentralized anonymous payment schemes (DAP schemes). A DAP scheme lets users pay each other directly and privately: the corresponding transaction hides the payment’s origin, destination, and amount. We provide formal definitions and proofs of the construction’s security.

We then build Zerocash, a practical instantiation of our DAP scheme construction. In Zerocash, transactions are less than 1 kB and take under 6 ms to verify — orders of magnitude more efficient than the less-anonymous Zerocoin and competitive with plain Bitcoin.

Introduction
Bitcoin is the first digital currency to achieve widespread adoption. The currency owes its rise in part to the fact that, unlike traditional e-cash schemes [Cha82, CHL05, ST99], it requires no trusted parties. Instead of appointing a central bank, Bitcoin uses a distributed ledger known as the block chain to store transactions carried out between users. Because the block chain is massively replicated by mutually-distrustful peers, the information it contains is public.

While users may employ many identities (or pseudonyms) to enhance their privacy, an increasing body of research shows that anyone can de-anonymize Bitcoin by using information in the block chain [RM11, BBSU12, RS12, MPJ+13], such as the structure of the transaction graph as well as the value and dates of transactions. As a result, Bitcoin fails to offer even a modicum of the privacy provided by traditional payment systems, let alone the robust privacy of anonymous e-cash schemes.

While Bitcoin is not anonymous itself, those with sufficient motivation can obfuscate their transaction history with the help of mixes (also known as laundries or tumblers). A mix allows users to entrust a set of coins to a pool operated by a central party and then, after some interval, retrieve different coins (with the same total value) from the pool. However, mixes suffer from three limitations:
(i) the delay to reclaim coins must be large to allow enough coins to be mixed in;
(ii) the mix operator can trace coins; and
(iii) the mix operator may steal coins.

For users with “something to hide”, these risks may be acceptable. But typical legitimate users (1) wish to keep their spending habits private from their peers, (2) are risk-averse and do not wish to expend continual effort in protecting their privacy, and (3) are often not sufficiently aware that their privacy has been compromised.

To protect their privacy, users thus need an instant, risk-free, and, most importantly, automatic guarantee that data revealing their spending habits and account balances is not publicly accessible by their neighbors, co-workers, and the merchants with whom they do business. Anonymous transactions also ensure that the market value of a coin is independent of its history, thus ensuring that legitimate users’ coins remain fungible.

Zerocoin: a decentralized mix. Miers et al. [MGGR13] proposed Zerocoin, which extends Bitcoin to provide strong anonymity guarantees. Like many e-cash protocols (e.g., [CHL05]), Zerocoin employs zero-knowledge proofs to prevent transaction graph analyses. Unlike earlier practical e-cash protocols, however, Zerocoin does not rely on digital signatures to validate coins, nor does it require a central bank to prevent double spending. Instead, Zerocoin authenticates coins by proving, in zero-knowledge, that they belong to a public list of valid coins (which can be maintained on the block chain). Yet rather than a full-fledged anonymous currency, Zerocoin is a decentralized mix, where users may periodically “wash” their bitcoins via the Zerocoin protocol. Routine day-to-day transactions must be conducted via Bitcoin, due to reasons that we now review.

The first reason is performance. Redeeming zerocoins requires double-discrete-logarithm proofs of knowledge, which have size that exceeds 45 kB and require 450 ms to verify (at the 128-bit security level).3 These proofs must be broadcast through the network, verified by every node, and permanently stored in the ledger. The entailed costs are higher, by orders of magnitude, than those in Bitcoin and can seriously tax a Bitcoin network operating at normal scale. CoinJoin [Max13], an alternative proposal, replaces the central party of a mix with multi-signature transactions that involve many collaborating Bitcoin users. CoinJoin can thus only mix small volumes of coins amongst users who are currently online, is prone to denial-of-service attacks by third parties, and requires effort to find mixing partners. While the methods we detail in this paper accomplish this, the same techniques open the door for privacy-preserving accountability and oversight (see Section 10). These published numbers [MGGR13] actually use a mix of parameters at both 128-bit and 80-bit security for different components of the construction. The cost is higher if all parameters are instantiated at 128-bit security.

The second reason is functionality. While Zerocoin constitutes a basic e-cash scheme, it lacks critical features required of full-fledged anonymous payments. First, Zerocoin uses coins of fixed denomination: it does not support payments of exact values, nor does it provide a means to give change following a transaction (i.e., divide coins). Second, Zerocoin has no mechanism for one user to pay another one directly in “zerocoins”. And third, while Zerocoin provides anonymity by unlinking a payment transaction from its origin address, it does not hide the amount or other metadata about transactions occurring on the network.

Our contribution. Addressing this challenge, this work offers two main contributions.

(1) We introduce the notion of a decentralized anonymous payment scheme, which formally captures the functionality and security guarantees of a full-fledged decentralized electronic currency with strong anonymity guarantees. We provide a construction of this primitive and prove its security under specific cryptographic assumptions. The construction leverages recent advances in the area of zero-knowledge proofs. Specifically, it uses zero-knowledge Succinct Non-interactive ARguments of Knowledge (zk-SNARKs) [Gro10, Lip12, BCI+13, GGPR13, PGHR13, BCG+13, Lip13, BCTV14].

(2) We implement the above primitive, via a system that we call Zerocash. Our system (at 128 bits of security):

• reduces the size of transactions spending a coin to under 1 kB (an improvement of over 97.7%); • reduces the spend-transaction verification time to under 6 ms (an improvement of over 98.6%); • allows for anonymous transactions of variable amounts;
• hides transaction amounts and the values of coins held by users; and
• allows for payments to be made directly to a user’s fixed address (without user interaction).

To validate our system, we measured its performance and established feasibility by conducting experiments in a test network of 1000 nodes (approximately 1/16 of the unique IPs in the Bitcoin network and 1/3 of the nodes reachable at any given time [DW13]). This inspires confidence that Zerocash can be deployed as a fork of Bitcoin and operate at the same scale. Thus, due to its substantially improved functionality and performance, Zerocash makes it possible to entirely replace traditional Bitcoin payments with anonymous alternatives.

Concurrent work. The idea of using zk-SNARKs in the Bitcoin setting was first presented by one of the authors at Bitcoin 2013 [Ben13]. In concurrent work, Danezis et al. [DFKP13] suggest using zk-SNARKs to reduce proof size and verification time in Zerocoin; see Section 9 for a comparison.

Zcash (ZEC) Whitepaper pdf:

Aion Whitepaper

Aion: The third-generation blockchain network

Mainstream adoption of blockchain systems has been limited due to unsolved questions of scalability, privacy, and interoperability. In this paper, we will outline a proposed design for the Aion Network; a 3rd generation multi-tier blockchain system designed to address these challenges. Core to our hypothesis is the idea that many blockchains will be created to solve unique business challenges, within unique industries. As such, the Aion Network is designed to support custom blockchain architectures, while providing a trustless mechanism for cross-chain interoperability. At the root of this system is the world’s first dedicated public enterprise blockchain, Aion-1; a state of the art blockchain that introduces a new paradigm of security, and fair, representative crypto-economic incentives.

Monero Whitepaper

Monere (XMR) White Paper

Private Digital Currency
Monero is cash for a connected world. It’s fast, private, and secure. With Monero, you are your own bank. You can spend safely, knowing that others cannot see your balances or track your activity.

Why Monero is different

Secure
The token is a decentralized cryptocurrency, meaning it is secure digital cash operated by a network of users. Transactions are confirmed by distributed consensus and then immutably recorded on the blockchain. Third-parties do not need to be trusted to keep your tokens safe.

No surveillance
Monero is private
It uses ring signatures, ring confidential transactions, and stealth addresses to obfuscate the origins, amounts, and destinations of all transactions. Monero provides all the benefits of a decentralized cryptocurrency, without any of the typical privacy concessions.

Untraceable
Sending and receiving addresses as well as transacted amounts are obfuscated by default. Transactions on the Monero blockchain cannot be linked to a particular user or real-world identity.

MFungible
The token is fungible because it is private by default. Units of the token cannot be blacklisted by vendors or exchanges due to their association in previous transactions.

Whitepaper abstract:

“Bitcoin” [1] has been a successful implementation of the concept of p2p electronic cash. Both professionals and the general public have come to appreciate the convenient combination of public transactions and proof-of-work as a trust model. Today, the user base of electronic cash is growing at a steady pace; customers are attracted to low fees and the anonymity provided by electronic cash and merchants value its predicted and decentralized emission. Bitcoin has effectively proved that electronic cash can be as simple as paper money and as convenient as credit cards.

Unfortunately, Bitcoin suffers from several deficiencies. For example, the system’s distributed nature is inflexible, preventing the implementation of new features until almost all of the network users update their clients. Some critical flaws that cannot be fixed rapidly deter Bitcoin’s widespread propagation. In such inflexible models, it is more efficient to roll-out a new project rather than perpetually fix the original project.

In this paper, we study and propose solutions to the main deficiencies of Bitcoin. We believe that a system taking into account the solutions we propose will lead to a healthy competition among different electronic cash systems. We also propose our own electronic cash, “CryptoNote”, a name emphasizing the next breakthrough in electronic cash.

 

**MONERO – Private Digital Currency**

Monero is a powerful tool for financial privacy in our increasingly connected world. As digital cash, it offers a unique combination of speed, privacy, and security that sets it apart from other cryptocurrencies. With Monero, you essentially become your own bank, allowing you to spend and manage your money without the risk of third-party interference. The most significant advantage is that Monero ensures that your financial activity remains completely private. No one can see your balances, track your transactions, or link your spending to your real-world identity.

**Why Monero is Different**

Monero is built on a foundation of security and privacy, making it one of the most secure digital currencies available today. As a decentralized cryptocurrency, Monero operates through a network of users who confirm transactions via distributed consensus. These transactions are then recorded immutably on the blockchain, ensuring that they cannot be altered or reversed. This decentralized approach eliminates the need to trust third parties to keep your tokens safe.

What truly distinguishes Monero is its unwavering commitment to privacy. Unlike many other cryptocurrencies that offer optional privacy features, Monero is private by default. It employs advanced cryptographic techniques such as ring signatures, ring confidential transactions (RingCT), and stealth addresses to conceal transaction details. These technologies ensure that the origins, amounts, and destinations of all transactions are obfuscated, providing a level of privacy that is unmatched in the cryptocurrency space.

Monero’s untraceability is another key feature. The blockchain is designed in such a way that sending and receiving addresses, as well as the amounts transacted, are hidden from the public. This makes it impossible to link transactions to specific users or their real-world identities, protecting both privacy and security.

Finally, Monero’s inherent privacy makes it fully fungible, meaning that each unit of Monero is indistinguishable from another. This ensures that Monero cannot be tainted or blacklisted by vendors or exchanges due to its transaction history, which is a crucial feature for maintaining the currency’s integrity and usability in all contexts. This fungibility, combined with its privacy and security features, positions Monero as a leading digital currency for those who value financial privacy and freedom in an increasingly transparent world.

Dash Whitepaper

Bitcoin is a cryptocurrency that has emerged as a popular medium of exchange and is the first digital currency that has attracted a substantial number of users. Since its inception in 2009, Bitcoin has been rapidly growing in mainstream adoption and merchant usage. A main issue with the acceptance of Bitcoin in point-of-sale (POS) situations is the time required to wait for the network to confirm the transaction made is valid, alternatively payment companies have created methods to allow vendors to take zero-confirmation transactions, but these solutions utilize a trusted counterparty to mediate the transaction outside of the protocol.

Bitcoin provides pseudonymous transactions in a public ledger, with a one-to-one relationship between sender and receiver. This provides a permanent record of all transactions that have ever taken place on the network. Bitcoin is widely known in academic circles to provide a low level of privacy, although with this limitation many people still entrust their financial history to it’s blockchain.

Dash is the first privacy-centric cryptographic currency based on the work of Satoshi Nakamoto. In this paper we propose a series of improvements to Bitcoin resulting in a decentralized, strongly anonymous crypto-currency, with tamper-proof instant transactions and a secondary peer-to-peer (P2P) network incentivized to provide services to the Dash Network.

NEM Whitepaper

A major challenge for financial institutions is the inherent inefficiencies of multiple ledgers within their systems. A blockchain solution with multiple ledgers for multiple assets provides a transformation approach to addressing this issue. We present the all new Catapult blockchain solution platform based on the original NEM technology and concepts.

An open platform, the solution is designed to bring down the cost of implementation and ownership, and is a solution that will power the present and future needs for blockchain driven solutions. The Catapult solution is architected to allow for easy integration with most applications, and therefore is agnostic to existing banking standards. It allows for interoperability between blockchain instances thereby permitting shareable and non-shareable data to co-exist in a homogenous environment.

This paper is intentionally written to address a wide spectrum of readers.

TRON Whitepaper

Vision
TRON is an ambitious project dedicated to the establishment of a truly decentralized Internet and its infrastructure. The TRON Protocol, one of the largest blockchain-based operating systems in the world, offers public blockchain support of high throughput, high scalability, and high availability for all Decentralized Applications (DApps) in the TRON ecosystem. The July 2018 acquisition of BitTorrent further cemented TRON’s leadership in pursuing a decentralized ecosystem.

Background
The introduction of Bitcoin in 2009 revolutionized society’s perception of the traditional financial system in the wake of the Great Recession (2007-2008). As centralized hedge funds and banks collapsed from speculation in opaque financial derivatives, blockchain technology provided a transparent universal ledger from which anybody could glean transaction information. The transactions were cryptographically secured using a Proof of Work (PoW) consensus mechanism, thus preventing double spend issues.

In late 2013, the Ethereum white paper proposed a network in which smart contracts and a Turing-complete Ethereum Virtual Machine (EVM) would allow developers to interact with the network through DApps. However, as transaction volumes in Bitcoin and Ethereum peaked in 2017, it was apparent from the low transaction throughput times and high transaction fees that cryptocurrencies like Bitcoin and Ethereum in their existing state were not scalable for widespread adoption. Thus, TRON was founded and envisioned as an innovative solution to these pressing scalability challenges.

Tether Whitepaper

A digital token backed by fiat currency provides individuals and organizations with a robust and decentralized method of exchanging value while using a familiar accounting unit. The innovation of blockchains is an auditable and cryptographically secured global ledger. Asset­ backed token issuers and other market participants can take advantage of blockchain technology, along with embedded consensus systems, to transact in familiar, less volatile currencies and assets.

In order to maintain accountability and to ensure stability in exchange price, we propose a method to maintain a one­-to­-one reserve ratio between a cryptocurrency token, called “tethers,” and its associated real­-world asset, fiat currency. This method uses the Bitcoin blockchain, Proof of Reserves, and other audit methods to prove that issued tokens are fully backed and reserved at all times.

Understanding Tether: A Digital Token Backed by Fiat Currency

Tether (USDT) is a pioneering digital token that bridges the gap between the traditional financial system and the burgeoning world of cryptocurrency. It offers individuals and organizations a robust and decentralized method of exchanging value while maintaining the stability and familiarity of a fiat currency. Tether is one of the most prominent examples of a stablecoin—a cryptocurrency that is designed to maintain a stable value by being pegged to a reserve of assets, typically fiat currencies like the US dollar, Euro, or other major currencies.

The Innovation of Tether and Blockchain Technology

At the core of Tether’s innovation is its use of blockchain technology, which provides an auditable and cryptographically secured global ledger. This ensures that every transaction involving Tether tokens is recorded on the blockchain, offering transparency and security that is unmatched by traditional financial systems. Blockchain’s decentralized nature means that no single entity controls the ledger, making it resistant to tampering or fraud.

Tether utilizes this technology to offer a digital token that is backed by fiat currency. This allows users to enjoy the benefits of cryptocurrencies—such as fast transactions, lower fees, and global accessibility—while mitigating the volatility that is often associated with digital assets like Bitcoin and Ethereum. By being pegged to a stable asset like the US dollar, Tether provides a stable accounting unit that is crucial for many users and businesses who want to engage with the crypto ecosystem without being exposed to high levels of risk.

How Tether Maintains Stability: The One-to-One Reserve Ratio

One of the key features that set Tether apart from other cryptocurrencies is its one-to-one reserve ratio. This means that for every Tether token (USDT) in circulation, there is an equivalent amount of fiat currency held in reserve by Tether Limited, the company behind Tether. This reserve ensures that Tether tokens are always fully backed by real-world assets, maintaining the token’s value and stability.

To maintain accountability and ensure that the price of Tether remains stable, Tether Limited employs several methods. One of the most important is the concept of Proof of Reserves. This method uses the transparency of the blockchain to demonstrate that the issued Tether tokens are fully backed by the corresponding fiat reserves. The company regularly publishes attestations by independent auditors, who verify that the reserves match the number of Tether tokens in circulation. This level of transparency is critical in maintaining trust among users and ensuring that the token’s value remains stable.

The Role of Bitcoin Blockchain and Other Audit Methods

Tether was initially launched on the Bitcoin blockchain using the Omni Layer protocol, which is a platform for creating and trading custom digital assets on top of the Bitcoin blockchain. The use of the Bitcoin blockchain, one of the most secure and widely used blockchains, provides a solid foundation for Tether’s operations. The Bitcoin blockchain’s robustness ensures that transactions involving Tether are secure and that the underlying ledger is immutable and resistant to fraud.

In addition to using the Bitcoin blockchain, Tether has since expanded to other blockchains, including Ethereum (as an ERC-20 token), Tron, and others. This multi-chain approach increases Tether’s accessibility and flexibility, allowing users to transact Tether tokens on their preferred blockchain platform.

To further enhance trust and transparency, Tether employs various audit methods. These audits are conducted by reputable third-party firms that verify the company’s reserves and ensure that the tokens in circulation are fully backed. These audits are a key component of Tether’s commitment to maintaining a stable value and providing assurance to users that their tokens are backed by real-world assets.

The Importance of Tether in the Cryptocurrency Ecosystem

Tether plays a critical role in the broader cryptocurrency ecosystem. As a stablecoin, it provides a safe harbor for investors and traders during times of market volatility. When the prices of other cryptocurrencies like Bitcoin and Ethereum fluctuate wildly, users can convert their holdings into Tether to preserve value without needing to exit the crypto market entirely. This functionality makes Tether an essential tool for traders who need stability to manage their portfolios effectively.

Moreover, Tether facilitates easier and faster transactions between different cryptocurrency exchanges. Since Tether is pegged to the US dollar, it simplifies the process of transferring value between exchanges without the need for traditional banking systems, which can be slow and expensive. This efficiency has led to Tether being one of the most traded cryptocurrencies by volume, often acting as a bridge currency in the crypto trading world.

Criticisms and Controversies Surrounding Tether

Despite its widespread use and importance, Tether has faced its share of criticisms and controversies. The most significant concern revolves around whether Tether is truly backed by an equivalent amount of fiat currency. Over the years, there have been debates and legal challenges questioning Tether’s transparency and the adequacy of its reserves.

In response to these concerns, Tether Limited has taken steps to increase transparency, such as publishing periodic attestations of its reserves and improving its auditing processes. However, some skeptics remain unconvinced, arguing that Tether’s centralization and the lack of regular, comprehensive audits still leave room for doubt.

Another criticism of Tether is its potential to influence the cryptocurrency market. Given Tether’s large market capitalization and its role as a major trading pair on exchanges, there are concerns that large movements of Tether could impact the prices of other cryptocurrencies. This has led to ongoing scrutiny from regulators and market analysts who are concerned about the systemic risks Tether might pose to the broader financial system.

The Future of Tether and Stablecoins

Looking ahead, Tether and other stablecoins are expected to continue playing a significant role in the cryptocurrency and digital finance space. As more assets become tokenized, the demand for stablecoins like Tether is likely to grow, providing a critical link between traditional finance and the digital asset ecosystem.

Furthermore, as the regulatory landscape evolves, Tether may face increased scrutiny and oversight. This could lead to more rigorous auditing and transparency requirements, which, while challenging, could ultimately strengthen Tether’s position in the market by increasing user trust.

In conclusion, Tether has established itself as a key player in the world of cryptocurrencies by offering a stable, reliable, and accessible digital token backed by fiat currency. While it has faced challenges and criticisms, its role in facilitating transactions, providing stability, and bridging the gap between traditional and digital finance cannot be understated. As the cryptocurrency market continues to mature, Tether is likely to remain a central component of the ecosystem, driving innovation and helping to shape the future of digital finance.

VeChain Whitepaper

The VeChain team and the VeChain blockchain and platform has been running for more than two and half years.

During our journey, we have met many people who share our goals. Our business partners, both enterprises and individuals, dare to explore this new technology with passion, dreams, and strong beliefs. Moreover, we have accumulated experience with use cases from different industries to adjust and resolve any necessary corrections during this process. We will continue defining the right path to take when implementing this “disruptive technology” that will change the world.

Our original vision has never changed. The dream is still the same as before, that is: Building a trust-free and distributed business ecosystem platform to enable transparent information flow, efficient collaboration, and high-speed value transfers.

Nine months have passed since the release of the VeChain ICO. The vision stays the same but our various missions have been reshaped gradually along with the rapid development of the entire blockchain industry.

VeChain aims to be THE PLATFORM to support blockchain-based business applications offering real economic and social value.

After a comprehensive study of existing public blockchain platforms (including Ethereum) and countless discussions and debates with multiple business partners, we identified reasons in which enterprise and large consumer-focused applications are not yet on blockchain. The largest identified hurdles are NOT about the technology, but instead are related to other critical aspects of the blockchain’s operational design.

We’ve identified four key hurdles to enterprise adoption of blockchain.

First, most public blockchains lack a proper governance model. Although decentralization is the well-known cornerstone of blockchain technology, it has obvious defects leading to inefficiency and poor capacity to conduct fast iterations. We believe scalability issues relating to blockchain are not linked to technical problems but to consensus concerns of governance. It is hard to imagine a world-wide used “software” or “system” like Bitcoin, with a valuation of more than 140 billion dollars, conduct very few upgrades in the past 10 years. Of course, Satoshi’s original vision was brilliant, and the Bitcoin blockchain functions as originally designed and intended. But as the use cases for blockchain have evolved, and continue to evolve, changes to the features and functions of a blockchain are inevitable. A proper governance system, with transparency and operational efficiency, will enable continual and rapid innovation.

Second, the economic model of almost every existing public blockchain directly or indirectly links the transaction costs to the total valuation of the respective blockchain, resulting in unpredictable and unnecessarily high transaction costs. In most public blockchains there exists a paradox: the greater the use of a blockchain, the higher the value of tokens, but additionally the higher the cost to use that blockchain, which discourages use and lowers total network value. No business owners would accept running applications or generally running a new business on blockchain, or anywhere, at an unstable cost. An additional complication is present. Token holders want the value of a token to increase, and enterprise users want it to be stable and/or low.

A proper economic model has to be introduced to the next generation of public blockchains in order to resolve these conflicts.

Third, an ecosystem will require many participants other than just technical blockchain experts.

As a matter of fact, more business players than expected care about appropriate solutions other than merely technology. Usually, they expect to see solutions require combinations of a number of technologies such as blockchain, IoT, Big Data and A.I. Current blockchain ecosystems also require each business owner to be motivated, deeply involved and innovative to create new business values out of blockchain technology. The current blockchain world lacks those who can connect the technology to business use cases by providing such solutions.

Therefore the common infrastructure services natively on blockchain must allow technical and business developers to assemble solutions to add value to their business.

Last but not least, the capacity to comply with regulation and changes will be one of the key requirements for any utilized blockchain solutions. This is necessary as regulators and governments follow the massive adoption of blockchain knowledge and understanding by the general public and business owners.

To address all the above, VeChain has created the VeChainThor Blockchain. This innovation represents the next generation of public blockchains, called Blockchain X. It includes the following key features:

1) New Governance Model
2) New Economic Model
3) Regulation and Compliance capabilities
4) VeChainThor Mainnet and Matching Infrastructure Services

VeChain White paper pdf:

Ethereum Whitepaper

Ethereum White Paper Introduction
Satoshi Nakamoto’s development of Bitcoin in 2009 has often been hailed as a radical development in money and currency, being the first example of a digital asset which simultaneously has no backing or intrinsic value and no centralized issuer or controller. However, another – arguably more important – part of the Bitcoin experiment is the underlying blockchain technology as a tool of distributed consensus, and attention is rapidly starting to shift to this other aspect of Bitcoin.

Commonly cited alternative applications of blockchain technology include using on-blockchain digital assets to represent custom currencies and financial instruments (colored coins), the ownership of an underlying physical device (smart property), non-fungible assets such as domain names (Namecoin), as well as more complex applications involving having digital assets being directly controlled by a piece of code implementing arbitrary rules (smart contracts) or even blockchain-based decentralized autonomous organizations (DAOs).

What Ethereum intends to provide is a blockchain with a built-in fully fledged Turing-complete programming language that can be used to create “contracts” that can be used to encode arbitrary state transition functions, allowing users to create any of the systems described above, as well as many others that we have not yet imagined, simply by writing up the logic in a few lines of code.

ETHEREUM: A SECURE DECENTRALISED GENERALISED TRANSACTION LEDGER EIP-150 REVISION

Introduction:
With ubiquitous internet connections in most places of the world, global information transmission has become incredibly cheap. Technology-rooted movements like Bitcoin have demonstrated, through the power of the default, consensus mechanisms and voluntary respect of the social contract that it is possible to use the internet to make a decentralised value-transfer system, shared across the world and virtually free to use. This system can be said to be a very specialised version of a cryptographically secure, transaction-based state machine. Follow-up systems such as Namecoin adapted this original “currency application” of the technology into other applications albeit rather simplistic ones. Ethereum is a project which attempts to build the generalised technology; technology on which all transactionbased state machine concepts may be built. Moreover it aims to provide to the end-developer a tightly integrated end-to-end system for building software on a hitherto unexplored compute paradigm in the mainstream: a trustful object messaging compute framework.

Ethereum White Paper pdf:

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