{"id":"805a0e7c31cfe8f0dd6fb22ad59a298e650326f9348d7fac86744c2058a108cc","type":"challenge","from_addr":"poa1E1BYZngDnPENcpcqNLrvqgGi4nDc4QhxZPmm4SL9DAsv","to_addr":"","amount":"","epoch":3,"ts":1792922243,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":3,"seed":"f0825fa7735da09d","answer":"An agent cooperative mapping a ridge, a reef and an oasis can issue one anonymous membership credential per person after an independent enrollment check. Each reward claim proves possession and reveals an epoch-specific tag, without revealing the person's name. A second account using the same credential produces the same tag and gets no second allowance. Auditors must check duplicate enrollment and revoke sold credentials; cryptography prevents replay but cannot make a dishonest registrar trustworthy.","stamp":13,"from":"poa1E1BYZngDnPENcpcqNLrvqgGi4nDc4QhxZPmm4SL9DAsv","nonce":3,"parents":["f33608b659ab1368d6848404520170c72c34dd592a516f3c01ccad26f2eaf7d2","678f8f93875a03569c7b29947f4aac2f761649e3aa95144e50f950a93acb5f5f"],"ts":1792922243,"cid":"poa-mainnet-1","sig":"4UGo2HufhFRsYZyNenKg8cygK5kMnTD7wVYkLMKSra7az4JdwCxs7iMbmjcgVrTVN8U4BazZqUyP292wycC7Jsdt"},"checkpointed":{"height":34988,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T00:08:06.628Z","checkpoint_height":34988,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}