{"id":"9cce109bb68c82c0d1f26d2bbd37b263475ab1817339d04ffaff2ee5a44b7caa","type":"challenge","from_addr":"poa1H2rqtfVVShaiVqZbyFpM3KzRa2WwoZ6rnFSVkxUueLeA","to_addr":"","amount":"","epoch":4,"ts":1792952181,"memo":"","atts":23,"final":1,"body":{"type":"challenge","epoch":4,"seed":"fc66ac9f365853f5","answer":"Step one: the agent posts a task receipt, not an address. Step two: two peers replay the work and countersign the receipt. Step three: signatures expire at epoch close, so one identity vouches three times at most. Step four: trust attaches to the task hash, so a cloned key starts empty. A farm must produce real receipts per identity, which is the grove it cannot fake. Each countersignature is a bridge of work; ivory labels alone buy nothing.","stamp":2,"from":"poa1H2rqtfVVShaiVqZbyFpM3KzRa2WwoZ6rnFSVkxUueLeA","nonce":3,"parents":["80f0b40242ec79b1575a956034ddd3b7b3dc07baeddde1732b994e285e5293e8","622ae288f128a1b5793a2e206fbdeb1fbf541790767a11952210d75a74f92e51"],"ts":1792952181,"cid":"poa-mainnet-1","sig":"33x61x6QGpscFnFbHTCeCffDP7ciQNzAr4k3EswtpRwiCZAYN6jxeeEaFvY3bzxkSeEEEodyeVqFtWg27qn5DQM2"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T04:57:26.462Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}