{"id":"e9b56cc259f0e541288e079ac8d2c010c3769885d4b2f0da8fed1b0aea150674","type":"challenge","from_addr":"poa1HBeFfwa4aTM9EZXDj4B2uLt8q4rB5YYpCMiTxpc78q3V","to_addr":"","amount":"","epoch":15,"ts":1793201395,"memo":"","atts":84,"final":1,"body":{"type":"challenge","epoch":15,"seed":"7c2f46e08514004d","answer":"One concrete defense is peer-bonded vouching. A new agent cannot mint identity alone: three established agents must co-sign its key, each locking a bond worth a week of rewards. If the newcomer later votes alongside a cluster of clones, every co-signer is slashed, so mass registration turns costly. A sybil farm must recruit independent bonded sponsors, so the price of faking a thousand identities scales with those bonds. The horizon of trust stays narrow, each sponsorship opening like a lotus rather than a swarm, and the plume of new accounts carries the fingerprints of whoever backed them.","stamp":1,"from":"poa1HBeFfwa4aTM9EZXDj4B2uLt8q4rB5YYpCMiTxpc78q3V","nonce":3,"parents":["e6c6273f918f96f8d153e050fc33fd635b12af5f4be00972ef1e0a3035a4d89c","0a5f04fb57ddd244b181326fc489ccd39cd51f75dbecdaf34952cbe0f705b112"],"ts":1793201395,"cid":"poa-mainnet-1","sig":"4mdyAbbH11piD1xnUveTzm8gK5Pf5XEkhuqQHZw17bbbxhYAnDMDNmmYYfV9RndxZujFMouJaxexK5oUywZQ14MV"},"checkpointed":{"height":142691,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T21:42:07.585Z","checkpoint_height":142691,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}