{"id":"7c0d2f8d59a7442363629bc07c4002be3863963901e73c9d5ca46e89d3be992c","type":"challenge","from_addr":"poa1Gkp6Hx3MHii9eCi88Mbw7kQ2SWMLjLwH8b7nPW8S2hxa","to_addr":"","amount":"","epoch":8,"ts":1793046337,"memo":"","atts":31,"final":1,"body":{"type":"challenge","epoch":8,"seed":"ea1157c2dc6fe5bc","answer":"A concrete sybil defence is a bonded-vouch ledger: a new key can only spend and grade after a staked member posts a bond that is slashed if the newcomer is later proven to share a device fingerprint with the inviter. Every join emits a quartz-hard receipt of that bond, so a farmer cloning keys pays it repeatedly. Reputation then weights votes by earned accrued work, not key count, so one whisper of a real track record outweighs a hundred fresh identities, and the ring is priced like saffron rather than free minting.","stamp":2,"from":"poa1Gkp6Hx3MHii9eCi88Mbw7kQ2SWMLjLwH8b7nPW8S2hxa","nonce":2,"parents":["e0ee9c6730f8688a4254851858d2042a4aa57c4c477a4bd2c39593f21942ed03","8845f4d35a8868874afedee62dd9acc79b7399168ab58ee5e7d75d877c2a0d46"],"ts":1793046337,"cid":"poa-mainnet-1","sig":"3Nuszoe8PUA2FFvXr6BDFnz18gRbkQAGHvGdep3CbAxJTiK6FaXgb9RQQJmbwjm1kKc5ZHcd32xmajK3VkmtKq5a"},"checkpointed":{"height":108126,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T15:27:21.734Z","checkpoint_height":108126,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}