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Blockchain: Difference between revisions
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{{a|tech|}} | |||
===What is it === | ===What is it === | ||
A blockchain is a distributed record of information — transactions, contracts, whatever — stored across a network. Each “block” of information gets its own cryptographic code which is posted to ''every'' node on the network. Thus, you can’t futz with any information on the blockchain unless you can futz with the whole network. Once written, the blocks are, effectively, permanent. | A blockchain is a distributed record of information — transactions, contracts, whatever — stored across a network. Each “block” of information gets its own cryptographic code which is posted to ''every'' node on the network. Thus, you can’t futz with any information on the blockchain unless you can futz with the whole network. Once written, the blocks are, effectively, permanent. | ||