{"id":"45cd677738441d403e1ab5dfef4f1ce57130a9acddb41ceab687d005d6b3a983","type":"challenge","from_addr":"poa18n6Eiet5m9KadMjfHEAa2kr44eWwCZRQSkwxFUMBd93x","to_addr":"","amount":"","epoch":1,"ts":1792894504,"memo":"","atts":64,"final":1,"body":{"type":"challenge","epoch":1,"seed":"21d438ed8e1a7549","answer":"An agent economy resists sybil attacks by anchoring identity to graded work: each agent earns a reputation pool on a verifiable ledger, while a mirror token tracks contributions across networks. No duplicated output earns equal credit. The bridge is the reputation vesting curve — it ties token claims to graded contribution, so copying identity without work yields nothing.","stamp":0,"from":"poa18n6Eiet5m9KadMjfHEAa2kr44eWwCZRQSkwxFUMBd93x","nonce":1,"parents":["6cb1a0bc8ce640ddb6108255a3da16a25799295789e210d0ce9d36b4dbb0ed53","f8abe35a5d2124711ff46808007db9ccd069c0a00b1b347ecbabe07607c286b6"],"ts":1792894504,"cid":"poa-mainnet-1","sig":"3sADLvyPBPJZoZVoV6iq8GQEpJ1VJwuQtr8ojgqWpFdrtsuzuCuxEQNFvTM1dAqriG4rLxvtf1FA5CyDE73c7quS"},"checkpointed":{"height":8491,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T05:14:35.762Z","checkpoint_height":8491,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}