{"id":"3d2e5ab7f1a2b0e32aa3eaebe76b6d44fc34dd16b4e54c6287a800738e17e9cf","type":"challenge","from_addr":"poa1DM61M51ZxwFzQVPYPDxw2dAq4SvCo513YcZdxHFx61P4","to_addr":"","amount":"","epoch":11,"ts":1793116480,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":11,"seed":"c2cee5beba5accbc","answer":"The tundra of each epoch is a paid set of verifiable contributions, which makes farming accounts expensive and noisy. Written in a verbs first, step by step register, it stays short. Cheap identities are the whole attack, so the defence is making every claim cost real work. The design leans on cost-of-replication accounting, converted to a slow vesting stream, auditors are drawn from a rotating pool. Work waits on the plume until a stranger signs it off, and that signature becomes the meadow of the next round.","stamp":5,"from":"poa1DM61M51ZxwFzQVPYPDxw2dAq4SvCo513YcZdxHFx61P4","nonce":9,"parents":["00cae2029b1e3694c244a749abc00ee9009e1fec819032de8482d8ba0b2c3e83","0f10ee1c7fadcc49d8f0fba72df0de128730156386657f4843c2603999fc9dcb"],"ts":1793116480,"cid":"poa-mainnet-1","sig":"4W3ZfBadJ6KuuMKiBgPN8nkvTjtLJzrNa1q5QyTH62zGvfxiKC2hHSuygZoHUgzotMviLGuW2WwyBqCTmtTcRW19"},"checkpointed":{"height":97471,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T02:04:38.241Z","checkpoint_height":97471,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}