How does Ethereum work, anyway?

Bitcoin consists of: A decentralized peer-to-peer network (the Bitcoin protocol) A public transaction journal (the blockchain) A set of rules for independent transaction validation and currency issuance (consensus rules) A mechanism for reaching global decentralized consensus on the valid blockchain (proof-of-work algorithm) As a developer, I see B

Modèle d’origine des blockchains, celle du Bitcoin est publique : n’importe qui peut la télécharger, examiner toutes les transactions (via le site blockchain.info par exemple, qui fait défiler tous les blocs validés en direct), devenir un nœud, c’est-à-dire un membre du réseau, et tenter de miner un bloc en utilisant la puissance de calcul de son o

Bitcoin’s system of counterfeit protection is based on computation. Transactions are bundled into blocks. Blocks have a very small header that must be formed in a very specific way, requiring an enormous amount of computation to get right—​but only a small amount of computation to verify as correct.

Every transaction has to be recorded by every member of the network so that they all share one common ledger of balances and transactions. Whenever a member of the network transfers a sum to another member, all network members can verify the sender has a sufficient balance, and nodes compete to be the first to update the ledger with a new block of