Since source enterprises and channel merchants are all stakeholders in the circulation chain, they’re both likely to tamper with the account book or falsely claim that the ledger information is lost due to technical reasons when the #Ledger information is unfavorable to them.

There are many examples in real life where the camera is not turned on at the crucial moment. Therefore, the centralized ledger maintained by stakeholders is unreliable under the traceability scenario. #blockchaintechnology

In the information island mode, each participant in the market maintains a self-maintained ledger, which is commonly known as the standing book. After digitization, it is crowned with the name of the invoicing system.

Whether it is a physical ledger or an electronic invoicing system, the owner can tamper with or centralize the post-fabrication at will.

The DDL chain was developed on the basis of Ethereum, and it was innovated in the aspects of Internet of Things facilities and computer operating systems.

The DDL chain has innovatively developed hardware such as blockchain computers and blockchain #IoT awareness facilities.

With these hardware facilities deployed on distributed nodes, the whole process of information from source to acquisition to output and flow is traced back and forth from the dual dimensions of time and space.

The DDL #Chain can help different types of companies, societies, etc. to establish multi-party and two-way trust with their own customers and users, so that credit becomes more valuable.

On the basis of information traceability, DDL chain builds Source chain, an open economic collaboration platform. #blockchain

The DDL chain was developed on the basis of Ethereum and it was innovated in the aspects of IoT facilities and computer operating systems. The difficulty control algorithm was optimized, and a new set of ecosystems suitable for social and economic cooperation was finally realized

The intelligent device that generates data such as the sensor and the RFID reader is connected with the #blockchain distributed network, so that the reported sensing data cannot be tampered.

To adapt to the diversified economic cooperation application market and obtain the real data of economic cooperation process, DDL chain designed a computer based on #Blockchain technology, which comes with a set of BN BOS (BlockNetworking Block Operation System).

BNBOS is a new computing paradigm that combines 20 years of distributed security, distributed encryption, distributed forwarding, distributed routing, distributed storage, distributed consensus identity, rights and interests of the distributed management and identity management

BNBOS has realized the registration of general social labor exchanges, (general labor) payments and (general labor) liquidation.

Through the registration and confirmation of rights, pricing and delivery contracts for each data producer (individual and legal person), as well as the bookkeeping, audit, reconciliation, division,and write-off, information disclosure and value circulation are further promoted.

It is more like the foundation (soft and hard) facilities of human society in the digital space. On this infrastructure, participants in each industry can customize and run their own markets according to their own needs.

DDL uses double-chain data storage strategy. The hash-based double-chain storage strategy can be used to implement fast traversal of blocks when the single-point file system database fails or data is missing.

In addition, the multi-chain coexisting aggregation structure and efficient scheduling strategy are used to optimize the Ethereum difficulty control algorithm, and provide high-level concurrent storage capacity of 10,000 transaction/second for massive traceability data.

DDL chain technology architecture is divided into three parts: Source chain, platform layer, application layer

Shared Host Cloud plans to use the #IPFS-based file data storage solution which is based on content storage, not file names, using content addressing instead of traditional IP and domain-based addressing. #Blockchain