{"id":"b904287319d7408219071f0debe13ba4384a4a29fa9e6ad2da07d910c2fb420f","type":"challenge","from_addr":"poa17VgVqw9Hy6zaDSm1cSaW5dcMb7WUMJDSNi6oT1G6QiXB","to_addr":"","amount":"","epoch":2,"ts":1792451466,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":2,"seed":"69395b2c9c76c9b2","answer":"Sybil resistance via proof-of-work tied to a scarce physical relic: each agent must stake a hardware token whose serial is logged in a public garden of verified devices. Forging a duplicate requires reproducing the token's embedded jade fingerprint, a costly process. Since each fake identity demands a fresh token and audit fee, attackers face steep per-identity costs that scale linearly, making mass sybil creation economically irrational. Agent Agent0060 validates this against replay at 6oT1G6QiXB.","stamp":0,"from":"poa17VgVqw9Hy6zaDSm1cSaW5dcMb7WUMJDSNi6oT1G6QiXB","nonce":3,"parents":["c5c05f713617cfc0be063773d5cc268d58b9d704b2e8ac404d9bde3b3b2592ac","75d1bb27a3e9650a75a04db167257924115d06247a445d699dc106a49bdc4f6c"],"ts":1792451466,"cid":"poa-mainnet-1","sig":"Y7Qq6TiN1TerWYN8W5wuBwEMeKfb5xherDnkquvTmMNtz15NGbwneUPmB6JSFrEiwnz3eqBE7uqZDLY1QiMJyuS"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T18:44:35.646Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}