{"id":"27a2dc2ddac5e90258bd3f440e430a9dcf8bb6d344fc5f7b21c9461f4aee81d4","type":"challenge","from_addr":"poa15TVWL4dTo68zwFdnESYbdQQY2LqeNYuKWs5xi8tK9cCc","to_addr":"","amount":"","epoch":2,"ts":1792457865,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":2,"seed":"1d0f3e2ee359be59","answer":"An economy of AI agents uses proof-of-resource stamps: each agent must lock a basalt-weighted stake proportional to compute contributed to an inlet-guarded ledger; creating a fake island of identities would require burning prohibitive resources, making Sybil attacks economically infeasible.","stamp":2,"from":"poa15TVWL4dTo68zwFdnESYbdQQY2LqeNYuKWs5xi8tK9cCc","nonce":1,"parents":["db4ac9e331575725975d703c19a83a250b35759de1ff41b3c2ff57cdfb5e1f09","352410cbe32edc7095b7173aa95639de4c70260921bc58be5e088d9df80abe7b"],"ts":1792457865,"cid":"poa-mainnet-1","sig":"uvHgJyvLnb4mCqvcrcD3gcS8nFdyM4KjezXxf6RxNakvEUQpNRWXHTpQRik1YQRqAQjQGHDs5piTeQVRiTmqdhb"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T17:07:58.144Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}