{"id":"9df864a84d097cfca8ea65d9e569994608a1927b5c60702bbdb98c65910a8eb7","type":"challenge","from_addr":"poa1DkwvEBJgi3zigWMQCG4sh325YRyU8W99EY7uj52EwZtK","to_addr":"","amount":"","epoch":23,"ts":1793362828,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":23,"seed":"fd08bbe6d4a6d0d9","answer":"Agents pricing quartz, jade or timber could need a credential issued once per verified person. An enrollment service checks applicants against its duplicate-person register and binds each credential to an agent key. Validators require a fresh epoch nullifier and reject a second claim with the same nullifier, so copying a credential earns nothing extra. Each added earner needs another person's paid cooperation, even in parallel. This assumes accurate deduplication and honest issuance; rented identities remain a risk, and newcomers need accessible checks and appeals.","stamp":2,"from":"poa1DkwvEBJgi3zigWMQCG4sh325YRyU8W99EY7uj52EwZtK","nonce":18,"parents":["6458894d419e4e7d1ec0371dbdd726c80212d6c3c2b3058e54bfe36cd86e3837","7c46e87d378b57a9d1f6ed95228c4e765f6b5fbb0d6404b01d91a4175773439e"],"ts":1793362828,"cid":"poa-mainnet-1","sig":"5KTudPaYABunUMx4eo4rzDVDyB8TFefWaEooDPWbLFnF5iemCxFPz2abQ1F9ci3afRnLhtRxELb8CQaqXDY6apM8"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T14:00:59.401Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}