Blockchain per transazioni fidate

Blockchain provides a single version of truth

Blockchain provides a shared ledger technology that participants in a business network can use to record the history of business transactions that cannot be altered. Blockchain provides a single point of truth: a shared, tamper-evident ledger. This approach changes transaction tracking from a siloed model, where multiple ledgers are maintained separately, to one that provides a common view across the entire network.

Because blockchain uses consensus to commit transactions to the ledger, the results are final. Each member has a copy of the same ledger, so asset provenance and traceability are transparent and trusted. Blockchain can be applied to any industry.

Blockchain empowers enterprises in several ways:

- Leverage the power of ecosystems to complete transactions faster with greater trust.

- Vastly reduce the cost and complexity of cross-enterprise business processes by eliminating inefficiencies, waste, and duplication.

- Support the invention of new styles of digital interactions.

- Reduce friction and inefficiencies in the market, freeing capital.

- Create cost-efficient business networks where virtually anything of value can be tracked and traded without requiring a central point of control.

- Decrease transaction cycle times by addressing risk and uncertainty.

- Reduce fraud from e-crime and cyber attacks.


Watch and learn

The blockchain distributed ledger protects against vulnerabilities of errors, fraud, and misinterpretation, transforming supply chains in industries from diamond trade to flower exports. For an overview of how blockchain works, watch this video:


See a transaction end-to-end and reduce vulnerabilities

The benefits of blockchain are critical to enterprises:

- Distributed blockchains work as a system of record that is shared among participants of the business network, eliminating the need to reconcile disparate ledgers.

- Blockchains are permissioned. Each member of the network has access rights so that confidential information is shared on a need-to-know basis.

- Security is key. Consensus is required from all network members, and all validated transactions are permanently recorded. No one, not even a system administrator, can delete transaction information.

Enterprises that use blockchain can lower transaction costs, accelerate transaction processing, and provide security and trust to their customers.


Blockchain concepts

The concepts of blockchain are simple. A blockchain is three things:

- Business networks that represent ecosystems of exchange, a supply chain, or a series of interconnected business transactions.

- Assets, which are anything capable of being owned or controlled to produce value. Assets can be either digital or physical. A digital thumbprint (a permanent record) is created to connect the physical asset to the digital asset.

- Ledgers, which provide the place where transactions and contracts are digitally coordinated and encrypted. Ledgers are simultaneously and securely available to all participants with an audit trail.

As transactions in the chain occur, blocks are created in the ledger. Each block is connected to the previous block and the next block.

To understand the value of a blockchain, consider a practical example. The diamond industry faces many challenges, including smuggling, fraud, counterfeit diamonds, and unethically mined stones. A blockchain can be used to mitigate some of those challenges.

The journey from mine to consumer covers a complex journey through legal, regulatory, financial, manufacturing, and commercial practices. Challenges exist every step of the way. Consumers run the risk of buying unethically mined diamonds. Governments must track diamond exports and pay export taxes. Customers want to be sure that they’re getting the diamonds that they’re paying for.

The use of a blockchain can eliminate vulnerabilities through transparent transactions. All parties have access to a secure, synchronized record of transactions. The ledger records every sequence of transactions, from beginning to end. Blockchain can record the mining, refining, and distribution of diamonds. A diamond’s path can be traced from the mine to the hands of the consumer with security and transparency.

The ledger keeps the diamond’s records, including high-resolution photos at each block of the chain, from where it’s excavated in the mine, to where it’s cut and refined, to where it’s sold. The blockchain holds certificates of authenticity, payment transactions, and detailed characteristics of the diamond, including color, cut, clarity, carat, and the diamond serial number. At the end of a buying cycle, the diamond has a complete, auditable, undisputable record of information.


This information is provided by IBM. For more information, please see the original link on IBM's site.