What is blockchain?
A blockchain is a shared ledger, copied across many computers, in which records are grouped into blocks linked by cryptography, so past entries cannot be changed without everyone noticing. Public blockchains such as Bitcoin and Ethereum are open to anyone; private ones are run by a known group.
Also called: distributed ledger
Why it matters
A blockchain is useful when several organisations need one record they all trust but none of them owns, such as a supply chain or a register of documents or rights. For data inside one company, a normal database is faster, cheaper and easier to correct. Describe who writes what to the register first, then choose the network.
What we do
Related terms
Need to put this in place?
Describe the task, we will name the scope, price and timeline. The price is fixed in the contract.