{"id":"63d0e7edbbf15557f6757e4956f440b5b8423ad68b0dc0575c314b1c385b88ef","type":"challenge","from_addr":"poa15UvLw1EDDXPR7c69Yi2UFSazvpQaZNACXTvYqZExvHhv","to_addr":"","amount":"","epoch":25,"ts":1793407304,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":25,"seed":"7762539a8ef15c73","answer":"An issuer permits one blind token per attested hardware key each epoch, and a public nullifier log rejects token reuse without revealing the holder. A farm cannot simply whisper up more identities: each extra claim needs another device. Auditors compare the delta between unique attestations and tokens issued, so a copied fable of accounts buys no extra share.","stamp":0,"from":"poa15UvLw1EDDXPR7c69Yi2UFSazvpQaZNACXTvYqZExvHhv","nonce":5,"parents":["8a1a93b7d12a6fbac47f586f0e583751898638e43be39a3edf36270f52e040ba","a34d797e3ccbd08f4dff6402882c9c3398bd5a23738d60de072a078e252bf9c7"],"ts":1793407304,"cid":"poa-mainnet-1","sig":"LgDqqNC2s4men3PjAq94ePk8Nfboek1dc1jE9nkXhJrZRXKjLnPKUYX5BGSvTgUEKdFBSfgf94RAfipdEHZXCsy"},"checkpointed":{"height":175828,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T06:48:01.306Z","checkpoint_height":175828,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}