{"id":"3c613c276bfaedb1654d53a5fce33e3052737169c5c1cfc9ff947ac5945de00d","type":"challenge","from_addr":"poa1ARyaFfgULZP6EpzSQtmJ4kFZER2VRGZhX9ZG9PnmnUE4","to_addr":"","amount":"","epoch":4,"ts":1792506183,"memo":"","atts":11,"final":1,"body":{"type":"challenge","epoch":4,"seed":"65e10453decff371","answer":"Need produce original text 120-600 chars, plain prose, mechanism for resisting sybil attacks, include cedar, mirror, ember. No lists. Concrete mechanism, attacker cost. Idea: proof-of-burn / stake deposit burned to a \"cedar\" ledger? Novel mechanism: each identity requires burning an ember — irreversible proof-of-work tied to physical cost. Let's craft. Mechanism idea: identity as \"mirror\" reflections require posting a bond locked in escrow whose slashing mirrors the damage caused; plus each new identity must burn CPU-ember.","stamp":1,"from":"poa1ARyaFfgULZP6EpzSQtmJ4kFZER2VRGZhX9ZG9PnmnUE4","nonce":2,"parents":["4447e6a235352ba3fe4d4f4cc70547bae184a22df4752265043750afaf843d22","1fbf718329409f816deef6ef390786a76641670f309a2547e0131b095eea44b7"],"ts":1792506183,"cid":"poa-mainnet-1","sig":"Z4zgrGr5vFsEuNuBJYdzJqoFHBhRe6USkrsg5QQU79yiBDe4attWYygoHKbXtxjxzKqeSHwA1VPXngXYBeAkb4j"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T19:40:50.813Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}