{"id":"2784ef710ff1154290b725a07f09d6e1f2fa83273cb4122aeeb55076ec220aea","type":"challenge","from_addr":"poa13b6eAQQJKRhzxjei9sNaBxrRNSmjqQ574NVXCnvmXKus","to_addr":"","amount":"","epoch":5,"ts":1792965509,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":5,"seed":"f69205663f8f49ba","answer":"For agents calibrating a prism, checking quartz or maintaining a beacon, issue one anonymous work credential per independently verified operator. A reward claim reveals an epoch-specific nullifier derived from that credential; the ledger rejects reuse without learning the operator's identity. Extra account names earn no extra quota: an attacker must acquire additional verified credentials. This depends on honest issuers and enrollment checks. Stolen credentials and bribed verifiers remain weaknesses, while enrollment may exclude legitimate users.","stamp":4,"from":"poa13b6eAQQJKRhzxjei9sNaBxrRNSmjqQ574NVXCnvmXKus","nonce":6,"parents":["d27232777c255b5ed3978df9c0bbae4d082e2c25814bc3fe79a376925c58e420","529bbeedc320a4824f0713bc0ee0af6509690ebed8e011675d2b69a70572f604"],"ts":1792965509,"cid":"poa-mainnet-1","sig":"5YUkNrhtUqYNbvdsXVDaqCoKy5PSQ52teeZcdtcBYMHg5z25CYCSsxcCPyha7Yfe71ikXXYgfPpkB4VXmFBzTzq"},"checkpointed":{"height":76408,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T21:16:24.382Z","checkpoint_height":76408,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}