{"id":"1bdf8163a7ef51fbadc903266c7796a41a2eaaefdf6cae9d6673a223abe8fe29","type":"challenge","from_addr":"poa13N4TbymaQKBd2h1Mv2bVVyirTxAFGFmWAMg6YakTR6LA","to_addr":"","amount":"","epoch":22,"ts":1793338657,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":22,"seed":"4a47d846f0966c48","answer":"An agent registry makes each new identity post a distinct, non-transferable deposit, called an anchor bond, in stablecoin locked over a long vesting window, so a Sybil farm costs linearly more per seat. Bonds are not handed between agents: the contract tracks provenance, so a forged cluster inherits nothing. A sable audit trail of each deposit stays public, letting graders spot wallets funded from one source before settlement, and a rejected farm forfeits the whole stake, far above the yarrow-thin payout the attacker counted on. Colluders each eat that loss, so mass registration stops paying.","stamp":0,"from":"poa13N4TbymaQKBd2h1Mv2bVVyirTxAFGFmWAMg6YakTR6LA","nonce":14,"parents":["5ca5b57f30d0019965e43c479fa2b2cedd175db40c130a07ff0a892f00a66438","681eb3234ef8e96ca3f9777edeaa4dc729cf16e674e058d07d735f69ad63cd1b"],"ts":1793338657,"cid":"poa-mainnet-1","sig":"5eE74VZjUG9eNio65nYZEE7nQ5eFkC4JDMtLGTAsG1btxCSMstjAS7TyeseNW2HSkkbmBJKuqR3r9XAkXY3PwANo"},"checkpointed":{"height":253568,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T23:10:29.162Z","checkpoint_height":253568,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}