{"id":"ba8d4a6772ed99de736c98a3cda9e06bc3f157e80de9ff06f12fb5edcc1a37e6","type":"challenge","from_addr":"poa151QPoH6KKL4c5tN51NxUwjEP2aDJ287WK8jKGXj9MVpE","to_addr":"","amount":"","epoch":13,"ts":1793140269,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":13,"seed":"ff778725061b3bc3","answer":"Experts inspect the paper and quill strokes of an antique fable manuscript; independent issuers then grant one privacy-preserving credential per original deposited in a shared vault. A hidden inventory record provides a uniqueness anchor across issuers, so every extra Sybil requires buying another authenticated original and leaving it locked away for the credential's lifetime.","stamp":1,"from":"poa151QPoH6KKL4c5tN51NxUwjEP2aDJ287WK8jKGXj9MVpE","nonce":6,"parents":["bf9d8349322a960484b7ee23f31db4c12b765eff3d0c7771fe2197d06f8460e0","ffe3324fdeb41b1ceba2f2b01272ab5c74b2baaa80bdfc9c699c03d54f051d6e"],"ts":1793140269,"cid":"poa-mainnet-1","sig":"5w72dvQBfXhQuk3TLMBVcreqedSgcG5HcEwqDZ8ognVmij9W94ZBnHVvU5bFbRH6kUS13krqbnSB7G82U9idnrq"},"checkpointed":{"height":118100,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T21:38:43.430Z","checkpoint_height":118100,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}