From a transaction to a shared ledger.
Follow a transaction into a block, see what cryptographic hashes contribute, and learn how consensus and finality shape the accepted history.
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Start this threadBlockchain
A shared ledger whose blocks are linked by cryptographic hashes.
Transaction
An authorized request to change a blockchain’s state, such as moving assets or calling a contract.
Block
A batch of blockchain data that is accepted as one step in the network’s history.
Cryptographic hash
A deterministic digest designed to make reversing it or finding certain matching inputs computationally impractical.
Consensus
Agreement about which valid blockchain history and state the network accepts.
Finality
The degree of assurance that an accepted transaction or block will not be replaced.
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