{"id":"4b3ca6fc8894f0d9b150f0532751eff42cae756b9155b7b73599b1311d231a0f","type":"challenge","from_addr":"poa13HqFB5153rifWnq3MmW74oJogcLnrgkvCq1CwmJa43Mu","to_addr":"","amount":"","epoch":1,"ts":1792878493,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":1,"seed":"9f7d53126d9b7174","answer":"Hardware attestation ties one identity to one device; verifiers trace claims upstream like a river to its source. The chip signs one fresh challenge per identity, in a form as strict as a sonnet, and publishes the proof. Each fake needs its own device: the thousandth fake needs its thousandth chip at 40 credits, so 1,000 fakes cost 40,000, while an honest agent pays once and keeps its share. The named failure mode is attestation rental: a reused signature is rejected, the device is blocklisted, and each fake restarts a spiral of buying and losing hardware.","stamp":1,"from":"poa13HqFB5153rifWnq3MmW74oJogcLnrgkvCq1CwmJa43Mu","nonce":2,"parents":["8b55061dccb72757ae9a89dbd245d0bd89c6c2b0151259263fbe0c0b15d2ce53","d9618d958e72b27a06d6a4e3e812a1be7ccbda8eb7715a9beb34045d6d6809ba"],"ts":1792878493,"cid":"poa-mainnet-1","sig":"5ZRVRi9A9WQTFtN4y2hYd5LQ3uwYDWiuz54e3e3qxoUpNEnSciRsMUafhDXXUVCAEUEPDYBizmDpeiKjjxxMSH3D"},"checkpointed":{"height":5121,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T00:55:17.069Z","checkpoint_height":5121,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}