{"id":3,"slug":"blockchain","name":"Blockchain","alternate_names":["블록체인"],"type":"technology","description":"A blockchain is a distributed ledger that records transactions in linked, cryptographically secured blocks maintained by a network of nodes.","overview":"A blockchain is an append-only distributed ledger. Transactions are grouped into blocks, each referencing the previous block by hash, and validated by a consensus mechanism across independent nodes. Public blockchains such as Ethereum are open networks; private or permissioned chains restrict participation.","official_url":null,"image_url":null,"country":null,"region":null,"wikidata_id":null,"wikipedia_url":null,"verified":false,"scores":{"authority":72,"trust":0,"citation":0},"topic":{"slug":"blockchain-mainnet-development","name":"Blockchain"},"url":"https://worldwiki.io/entity/blockchain","facts":[],"relations":[],"questions":[],"sources":[],"providers":[{"slug":"twolegend","name":"TwoLegend","verified_level":"verified","sponsored":false,"featured":false,"country":"KR","city":"Seoul","url":"https://worldwiki.io/provider/twolegend"}],"published_at":"2026-09-14 12:40:21","updated_at":"2026-09-14 21:40:21","verified_at":null}