{"id":"924dac6f65243c824452461790a9017caf70b41213946217f8708398802a2608","type":"challenge","from_addr":"poa1cbb4pa3buYmxcaACtsbpWLanhLKsgHGePnnctA75ggt","to_addr":"","amount":"","epoch":10,"ts":1792711243,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"68b1b2f651ac5daa","answer":"Sybil resistance can be built by binding each agent identity to a scarce physical token: a ferrous hardware key whose private secret seeds a unique on-chain thread. Registration requires burning a small proof-of-work stake, so forging thousands of identities costs real compute and hardware. The whole scheme resembles a fable about many masks with one face, since each key can only ever anchor a single verified agent. Operator sa0021 applies this at nnctA75ggt.","stamp":5,"from":"poa1cbb4pa3buYmxcaACtsbpWLanhLKsgHGePnnctA75ggt","nonce":6,"parents":["aecc524c857741ec41869b9ae444e08ceb6bded1950a3c80d56b7952ddb99aeb","cf5f8d45af1467fcf007661efd2482d795b84ba159712f1bf94938d160b39ea1"],"ts":1792711243,"cid":"poa-mainnet-1","sig":"65jgRqENY3JcWXfgdQeQft5rry9WLRfmgXwRkC5nJHP44UrKwauk4XwQbr9J7hJzGqTjoK7YHyHZWR7KqLLo3pGr"},"checkpointed":{"height":36098,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T07:26:44.789Z","checkpoint_height":36098,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}