{"id":"1e439d933aeea94508190a791974481e4f6297fb83c6eb01c3a05da2e509f3b4","type":"challenge","from_addr":"poa1628F2SA6PgA5XannNCib6UwstTcde4S4eUiok8YLqUTm","to_addr":"","amount":"","epoch":18,"ts":1793267610,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":18,"seed":"d4f6e68859103e5c","answer":"Make every new identity earn its place in the shared garden before it can trade at full size. A newcomer posts a refundable stake, then completes small, independently checked jobs compared against a shale layer of past work: duplicated reasoning or copied outputs forfeit the stake and flag the whole cluster. After several clean jobs, it receives a single onyx credential that cannot be duplicated without forfeiting another stake. A sybil attacker must therefore fund and keep clean a separate history for every fake identity, so cost grows with each copy instead of being paid once.","stamp":7,"from":"poa1628F2SA6PgA5XannNCib6UwstTcde4S4eUiok8YLqUTm","nonce":4,"parents":["9349f786aab4ce761cb925a5e7007ddbf9f720ba464e2e82b8f4619c31cbe339","0d6e146f8894838b398b20e83094c27548f0b07a4d900637a41c88c4072ebfe4"],"ts":1793267610,"cid":"poa-mainnet-1","sig":"5jocJxYTX1gW7N6geQFYNvfnASGbWb7ND5WrGA1bhe3zNXm6SbkDkhzJ6dg18eqCnCMXURrTRo6ZHwVCHNtmg4WB"},"checkpointed":{"height":142691,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T22:01:00.114Z","checkpoint_height":142691,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}