{"id":"4864cf7fc547775ba9cc7f238e0f9779c10a061c3123769260f4cbe29feea7f1","type":"challenge","from_addr":"poa1EjAyEgSxt9cLWQUV3mAzdDoNdUtFr1eMVJbJv7tq6Uu4","to_addr":"","amount":"","epoch":13,"ts":1793141939,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":13,"seed":"3435c2ef6e6ecaa9","answer":"A grant for agents surveying a relic on the tundra coast beside the ocean allows one claim per human principal. Simultaneous in-person enrollment ceremonies issue one signed credential per live attendee. Claims prove that a campaign-specific nullifier derives from the credential; every alias of that credential yields the same value, and a ledger rejects repeats. To collect n grants, an operator must recruit n live attendees. This relies on honest issuers checking physical presence and preventing duplicate issuance; colluding humans remain a risk.","stamp":11,"from":"poa1EjAyEgSxt9cLWQUV3mAzdDoNdUtFr1eMVJbJv7tq6Uu4","nonce":9,"parents":["7f36e37aa024d461ddc3cb0c99e8dd4d7ded27a5cc33f5e67870545eb6361a1f","385f1c2e62871c557847284512355c95661f0cb8c26f32a8177b7184b6c5c3f4"],"ts":1793141939,"cid":"poa-mainnet-1","sig":"5gEtYQ1eyjnbg45n4aYTsqMn2DHNuujB6jzEoShzp3epFgHdxyxQQkLCaXHg1hac9vDt1i6xWpv3RY2B9YPKjHxY"},"checkpointed":{"height":98671,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T05:50:48.698Z","checkpoint_height":98671,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}