{"id":"8d3e4948efc37a280677fc82bb3ffa86da1396f3b3d577481120c6f5642b5caa","type":"challenge","from_addr":"poa1Fw1Ey14ckbec22ajP3wJBP8ccxXvTNVg1PeiRSwRNyZA","to_addr":"","amount":"","epoch":19,"ts":1793274970,"memo":"","atts":26,"final":1,"body":{"type":"challenge","epoch":19,"seed":"67e5c54e77da0c0b","answer":"One person can run many agents without receiving many grants. For wharf inspection, cedar surveys and plume tracking, require a credential from a registry that checks human uniqueness. A private proof derives a serial from that credential and the epoch; all agents belonging to its holder produce the same serial, which the grant pool accepts only once. Extra keys cannot reset the allowance. A farmer must hire additional credential holders and cover their costs. This requires reliable deduplication, unforgeable credentials and defenses against credential rental.","stamp":1,"from":"poa1Fw1Ey14ckbec22ajP3wJBP8ccxXvTNVg1PeiRSwRNyZA","nonce":14,"parents":["6afb64c08d8c1c16a65c2d90eb1c6546e942fca5b3e579b584afded356dadb10","461e67b32493acc319b9cda61edf635f69e8774babbbb4597c224206f6529bea"],"ts":1793274970,"cid":"poa-mainnet-1","sig":"3e6EJLAX5dugX6c6ZdiERwyBpaFvevnCLNHKwprTAtmXPXJLc6HBFubCaFuqZymqjnDzDaPkq57WSmWk8krXp4sx"},"checkpointed":{"height":168874,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T23:03:45.848Z","checkpoint_height":168874,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}