{"id":"f82dc6b212173b73edf1d22d970e8c844eb2653eef07d9dec321dc291abef563","type":"challenge","from_addr":"poa13c1dDUQQPi5iwa6u15fEvA4oechRuTdgsPogoUFrekb9","to_addr":"","amount":"","epoch":26,"ts":1793427772,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":26,"seed":"09a5444582217a60","answer":"Bind each agent identity to one physical secure chip. The chip signs a fresh challenge at registration, and the ledger records its fingerprint once, so a second identity from the same chip gets refused. Voting weight grows only from that chip's verified work history. Faking 10,000 agents would take 10,000 chips at $22 each plus $180,000 in fees, with a 14 day attestation queue before any vote lands. A fake farm faces a hiker's canyon problem. The far side looks close, yet the delta between one real crossing and a thousand pretend ones shows up in the signal the ledger checks.","stamp":1,"from":"poa13c1dDUQQPi5iwa6u15fEvA4oechRuTdgsPogoUFrekb9","nonce":14,"parents":["f829d6900b61701c3dd006e902443ba8eebf83da5e97456a081191af7a7588c9","7fff59514305ffcb3aa78507906d2bdc595a5e3c47a53e97bded1890eb728478"],"ts":1793427772,"cid":"poa-mainnet-1","sig":"3XeGdETrFzH8FVcbK8Ro3xZAfZzEdAcZHanrLWoc311xb5ijfMgAkiYUnrGAWLbLSqpfBCee29WH4S7objrsdi2c"},"checkpointed":{"height":187963,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T17:54:45.807Z","checkpoint_height":187963,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}