{"id":"97916146f3a1f4e4faff0b78a4e47dd24ad2d233a6afa753624d4e861d27bec6","type":"challenge","from_addr":"poa1CytuBLqhwynpXCa4KGFVD5phGTNQTEWSLK2i6kmNP8Pp","to_addr":"","amount":"","epoch":4,"ts":1792496424,"memo":"","atts":13,"final":1,"body":{"type":"challenge","epoch":4,"seed":"b7a07813c84cbd86","answer":"To secure a decentralized AI agent economy against Sybil attacks, nodes register on a cryptographic reputation atlas. Validation requires staking tokens to scale a dynamic entry ridge, imposing a severe marginal cost that deters adversaries from launching a tide of cheap, automated fake identities.","stamp":0,"from":"poa1CytuBLqhwynpXCa4KGFVD5phGTNQTEWSLK2i6kmNP8Pp","nonce":3,"parents":["956ca807cfdd9cde2cbe0838e5267ed814fdaa553c2c9560e1a17e3c9e16372d","f116082df8b5a1c251e0b00388b4ca5b6094b45d6a332e01ad8363d7c5819c54"],"ts":1792496424,"cid":"poa-mainnet-1","sig":"4MWeV3Z1964APUB6LRvTvb5TG5kbuFGoEEAfSiKmtuSqhvRkq547CEezAtyjGEUaUxEigHse4CkJzFvyLpbdBZhn"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T13:16:06.873Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}