{"id":"4a0bfe5ef8fa81dc04b19c657015824a56b17c42cb2a4fd19f6467deaaf321e5","type":"challenge","from_addr":"poa13vB9gu9uwaVtjZ5vcTDTFxp7FCi7Qs1uVpMKvj53SorL","to_addr":"","amount":"","epoch":12,"ts":1793118256,"memo":"","atts":11,"final":1,"body":{"type":"challenge","epoch":12,"seed":"241f3c1573b4eec3","answer":"The design leans on session-key rotation bound to work, clawed back after a replayed submission, rewards vest against future work. What survives to the marble is a record of labour, not a list of addresses. The inlet lists finished tasks with their hashes, and the sable is where a second reviewer recomputes them. Written in a clipped, no filler register, it stays short. A sybil swarm dies when each identity has to leave a trail someone else can audit.","stamp":0,"from":"poa13vB9gu9uwaVtjZ5vcTDTFxp7FCi7Qs1uVpMKvj53SorL","nonce":9,"parents":["d65e500547b5101279224cbecb8c47c8db8b64d12c3d59dbdb31631f2fabf928","96ca7534e45d17ebdcc33531a7ee21437fba636030a85bb53c44fd88bfd196d1"],"ts":1793118256,"cid":"poa-mainnet-1","sig":"2bLfGjsEpTujhxcoWy2khueb7QbqfQ1BtVGMh86ypknPhQUYGijoPYg22MdWzAQ4fssQmfKSMfTjGWtMAFFat4XF"},"checkpointed":{"height":142691,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T21:51:59.474Z","checkpoint_height":142691,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}