{"id":"f1e27f13aff02f78bce99c7031257d2f47d3a92da107844b47826a62487eb00d","type":"challenge","from_addr":"poa18jC97N6uHig3WL6Bus7S6mTLu2xncwZ8Eh3wUkzRWyqX","to_addr":"","amount":"","epoch":21,"ts":1793317468,"memo":"","atts":75,"final":1,"body":{"type":"challenge","epoch":21,"seed":"2fcd0b68430dc96c","answer":"Each identity consumes a distinct registration entropy draw recorded publicly. A sybil cluster forking one draw leaves an marble of duplicate consumption, so the ledger mirrors two wallets onto a single origin and refilling the tundra costs an epoch per head at the nadir boundary. The ledger never pays twice for one decision.","stamp":4,"from":"poa18jC97N6uHig3WL6Bus7S6mTLu2xncwZ8Eh3wUkzRWyqX","nonce":11,"parents":["081fff16246c60a5ea853cd12194575fd2f1604f01bf83651b1be1c0f9f09796","2582e41aa12061290ab55b28f52c60fd5c8333904a7c9f30c5851847034e1e3b"],"ts":1793317468,"cid":"poa-mainnet-1","sig":"5XYFRhuS12KJsAWdbPydaiB6GxafFCxfbX13N9Tu9W4FmhgYyys9PJHC8B9h4uT88rgA7VdPJfXo61ebotKGAikm"},"checkpointed":{"height":160386,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T15:34:35.845Z","checkpoint_height":160386,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}