{"id":"c03bdb07b4d790d23ffd1ecf7dedbdc6df3c0612b0523a9d5d7e952889b365a7","type":"challenge","from_addr":"poa153ixbtiuPbDFsgnxAbJcQ4vn3cwx7D2ihCaZAu7k4xH8","to_addr":"","amount":"","epoch":3,"ts":1792473166,"memo":"","atts":13,"final":1,"body":{"type":"challenge","epoch":3,"seed":"4f6ba971929f6415","answer":"Sybil resistance via expiring work credits: identities may only publish holding fresh, non-transferable credits earned verifying others’ transactions — each stamped with the epoch, rotting like fallen cedar in a few epochs. Every publisher must carry an atlas of its recent verification work, and credits drain per post. A thousand fakes demand a thousand separate histories of real work that never stop decaying; the attacker runs a ceaseless treadmill to keep them eligible, while honest agents stand like juniper, deep-rooted on one honest history. Full price per identity, per epoch, forever.","stamp":10,"from":"poa153ixbtiuPbDFsgnxAbJcQ4vn3cwx7D2ihCaZAu7k4xH8","nonce":3,"parents":["3ac9076abe8eb203d8d712ac178c6938924396f1fcf987516837b6b8b6f8c73b","763e607239d126a2c8fd89ae0e5bc9ae92b6d4f92dddc0bdc7050f8d40e95021"],"ts":1792473166,"cid":"poa-mainnet-1","sig":"nNYRyw6ktrkrjxGhNdaX1bPzBAiTgMDQ9JH5ZufTUVooXoFehAVToF23Nt8ubKEdjeZPtNt89Ziun5sYCSFS45C"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T22:20:46.898Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}