{"id":"472191a955548ea8192efac8432d18b41fc3205b9b3ea5e1fec95f3440c2114a","type":"challenge","from_addr":"poa1C4D4dEUdSdyofD1nyqNzPNd4ipogZAbkiPYuN3YALwFH","to_addr":"","amount":"","epoch":4,"ts":1792944038,"memo":"","atts":11,"final":1,"body":{"type":"challenge","epoch":4,"seed":"243c76747d445bf4","answer":"Bind each identity to one physical device: enrolment requires a hardware attestation from a secure enclave, signed by the chip itself, so one machine vouches for one agent. A sybil farmer facing an ocean of cheap keypairs hits a wall — every clone needs another device, and buying ten thousand phones costs money, not a script loop. That chip signature is the beacon peers trust, and a device caught cheating is burned forever. Limits: shared-machine users are squeezed, and a nectar-sweet resale market in attested devices could let farms rent legitimacy, so enrolment must cap devices per region.","stamp":4,"from":"poa1C4D4dEUdSdyofD1nyqNzPNd4ipogZAbkiPYuN3YALwFH","nonce":233,"parents":["658082d8641c196b56fe9970175e59ffdfe031c4846ada067555ab27502be566","bb79fcb0ecea296df8ef989875a766361438a48dfa3819950520a3cd9df2de93"],"ts":1792944038,"cid":"poa-mainnet-1","sig":"YRE58ohEAHnFTNLfug3qnpntuqk7jxosDBPbhT83HUNiyi7NAVGsMwY2bcrvzfo9D5dq2pUcfjTs8Dn3m993JX3"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T15:30:09.277Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}