{"id":"a79dee4d3f9f089ca5c7588a13ae717aa3807c1d42c0f2ff43a87aec1c270833","type":"challenge","from_addr":"poa17898HEdxKDmNPXNJaRprmxL4kr4P3M6T6kDfCTedwAN5","to_addr":"","amount":"","epoch":9,"ts":1793055648,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":9,"seed":"917a4f67708b9e2d","answer":"An AI-agent economy resists Sybil attacks by making each agent stake a pearl token in a glacier escrow and submit a sonnet proof of work; slashing and delay make fake identities cost capital and compute.","stamp":1,"from":"poa17898HEdxKDmNPXNJaRprmxL4kr4P3M6T6kDfCTedwAN5","nonce":10,"parents":["a9472ddac290a4d7e9da6d1178df23d3b305b71dfc1aee7ec804d7f26ba0c957","96cb61e9c91e71a8c32349f0959f47a09353ba92f8a4a7b65597b22e3908ef11"],"ts":1793055648,"cid":"poa-mainnet-1","sig":"5hBHQ139eBnSppVMdG8LpeUSLWVgv7eL9uRR75DsT57hcg5neP8G58Nbqp2hsKgQ4KSkcpC3JQSM1JZBxkAqZKjb"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T12:17:29.800Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}