TAC (Traceability Chain, Traceability Chain) utilizes the unique non-tamperable distributed ledger record feature of the blockchain to focus on building the world's largest traceability public chain, building underlying communication nodes, traceability cloud platforms, and distributed storage cloud services. TAC has an indispensable position in the traceability chain ecology. It is the carrier of value transmission, and it is transferred among platforms, developers, enterprises, service agencies, and consumers, making the entire ecology healthier and more dynamic for development.

Project Vision

We hope to build a traceability cloud platform based on the blockchain technology and use the unique non-tamperable distributed ledger recording characteristics of the blockchain, and solve the problems of enterprises in commodity management through the sub-chain of the landing project and the corresponding DAPP application. Information traceability, anti-counterfeiting verification, and mobile marketing problems in the process of production, circulation, distribution, and terminal consumption provide technology developers with a fast and efficient collection of development cloud services, and solve "trustworthy" problems for brand companies and consumers. And thus build a brand new blockchain ecosystem - Traceability Chain, as an optional Internet value transmission protocol in the future world, and push the practicability and ease of use of the entire blockchain industry forward.
As the most promising blockchain ecosystem, it perfectly combines the advantages of Ethereum and BitShares. Traceability Chain will continue to build a basic platform, design and develop software and hardware products, and develop and iterate various product development and commercialization projects to gradually form a blockchain economy, improve industry efficiency, and promote efficient and coordinated development of society .

Application scenario

Food safety.
Medicine and health products.
Mother and baby.
Tobacco and alcohol.
Luxury goods, cosmetics.
Publishing, IP derivatives.

Consensus mechanism DPOS

The underlying node consensus of the traceability chain adopts the DPOS algorithm, and all blockchains are essentially transaction-driven deterministic state machines. The consensus mechanism is the process of agreeing to determine the order of transactions and filtering invalid transactions. Many different consensus algorithms can produce transaction ordering to the same effect, but DPOS has been running reliably on multiple blockchains for many years, proving to be a robust, secure and effective consensus mechanism. Like all consensus algorithms, the most damage a block producer can cause is censorship.
The validity of all blocks must follow the deterministic open source state machine logic. DPOS Algorithm Overview The DPOS algorithm can be divided into two parts: how to select a group of block producers and schedule block production. The selection process should ensure that the stakeholder has the ultimate control over the situation, because when the network is not functioning normally, the stakeholder loses the most. Since the selection process itself has little impact on how consensus is actually reached, this article will focus on how consensus is reached after block producers have been selected. To better explain this algorithm, suppose there are 3 block producers A, B and C. Since consensus requires a 2/3+1 majority to adjudicate all cases, producer C is assumed to be the tiebreaker in this simplified model.
In reality, there will be 21 or more block producers. Similar to proof of work, the general rule is that the longest chain wins. Any time an honest node sees a longer valid chain, it switches from the current fork to the longer valid chain. Delegated Proof-of-Stake (DPOS) is robust to every natural network break we can think of, and even to most producers cheating. Unlike some other consensus algorithms, DPOS can continue to function when most producers are unqualified. This way, the community can vote to replace unqualified producers until 100% participation is restored.
As far as we know, no other renew algorithm can remain robust under such high-intensity and variable failure conditions. After all, the reason why DPOS has such strong security comes from its algorithm for selecting block producers and verifying the quality of nodes. The yes-voting process ensures that even with 50% of the effective voting power, one cannot single-handedly select even one producer. DPOS is designed to optimize the mechanism of 100% participation in consensus by honest nodes with strong network connections. This allows DPOS to confirm transactions with 99.9% certainty in an average of only 1.5 seconds, while degrading in an elegant and detectable manner, from which recovery is trivial.

Structural advantages

Can coexist with the traditional central data system, can carry out secondary development of business without changing the existing centralized system, and can realize the coexistence of new business and original business, seamless switching or overall migration . In the actual scenario of blockchain application landing, how to achieve a more friendly upgrade and switching is the key. Visual smart contract generation template traceability chain provides open smart contract templates, an open industry contract template library, and a smart contract generator for operators, which greatly reduces the threshold and flexibility of smart contract formulation.
This will allow more developers to join the ecology of the traceability chain. The application development of the traceability chain that can be integrated with the mainstream technology architecture can be compatible with the current mainstream technology architecture, adapt to the original technology framework of various industries, and save the cost of migration. The technical test results of the traceability chain supporting millions of daily processing volumes show that the daily processing capacity of events has reached millions of levels, which can meet the long-term development of enterprise business. We are also continuing to upgrade the technology to continuously improve the processing capacity . The automation of system operation and maintenance can realize the automation of node operation and maintenance through the privatization deployment of nodes, start the services on the chain in seconds, improve efficiency and save manpower. Perfect developers support the traceability chain development kit interface API, and community-certified developers can easily call various functions and resources on the chain, and successfully develop asset wallets, browsers, and various traceability, anti-counterfeiting, supply Chain finance, big data marketing and other applications.

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