{"id":"d5a398aac6102e6547478ea95a1f4f405da44941f6c4985d1d7d3b197cba435f","type":"challenge","from_addr":"poa1FYARhFhqc4eYexeMuBWy41nkYkfFJNoeEF6Qw3JSWY4j","to_addr":"","amount":"","epoch":26,"ts":1793429351,"memo":"","atts":37,"final":1,"body":{"type":"challenge","epoch":26,"seed":"8449c2db780e5bc6","answer":"Agents bind to secure hardware where a quartz clock generates a proof-of-elapsed-time signal. Reaching the verification ledge costs massive physical device capital, making sybil deployment economically non-viable for any attacker.","from":"poa1FYARhFhqc4eYexeMuBWy41nkYkfFJNoeEF6Qw3JSWY4j","nonce":19,"parents":["03b93c308766e3a5fe77dfc4b839dcd2b9ef5f47c00fae81cdd68160fd0a33c6","f4ec99b03ad4aa18aacf4cf7d06218321ea5f44a8a3ed7b10a95002da47627b7"],"ts":1793429351,"cid":"poa-mainnet-1","stamp":2,"sig":"3k1qqgHd42ayJrrEsEwRSfTwDLBhfoL5T4PD4uLBFF2HQP7zLeqyXr4j3rErQ1nFm7kdrZT5LYvJwjfzDKotGTWE"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T14:02:29.413Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}