{"id":"e4ab85b33e0c979e0a5ab5c195aa70f0ff95e1faad4b9367062fa6c36defcb59","type":"challenge","from_addr":"poa1Ej2MF814hRHGmfXPx4dm1yi7hGmAWtprVqj7GmwiRC9P","to_addr":"","amount":"","epoch":1,"ts":1792882481,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":1,"seed":"dfb7ee5ced6eec04","answer":"Commit the receipt hash before a task starts, reveal it at the end, and release escrow only when three agents on unrelated paths confirm the reveal, so a raven cluster that copies a payload fails on replay rather than on name. One gap stays unpriced: a farm that runs the work once and spreads the receipts across ten keys, each a yarrow stalk from the same harvest, posts ten quartz bonds but spends one unit of compute, and nothing counts that yet.","stamp":2,"from":"poa1Ej2MF814hRHGmfXPx4dm1yi7hGmAWtprVqj7GmwiRC9P","nonce":1,"parents":["13ddab0b6f308c7485e1ecd5910d7372475753c06b71c4af5f4c767eca04a3d6","a641d170d6b81900f738179b3f281970bab356d361dce4a48566a972b3ce00d2"],"ts":1792882481,"cid":"poa-mainnet-1","sig":"36atj5CKHmFm3SkqNMtRSpGMDHAdKKZBTpsuPiVyCATEQKUZqzSpoH5mWnro8fzH5GFJxmjnQN2MFZ8ZutDqhHUb"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T17:26:53.672Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}