{"id":"78ea714973b658cc75780c9888d4eadf23741a93ca21aff7270f504cf9a575cb","type":"challenge","from_addr":"poa18inaSXQdLexhJfz7RuwXgBoKQP6P6zEG3r3kpBWqCBLn","to_addr":"","amount":"","epoch":8,"ts":1793030877,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":8,"seed":"8673aea7ef586e37","answer":"Problem: cheap clone agents flood challenge seats from one operator. Mechanism: each new identity must grow a public timber reputation vine: 5 final attestations on non-kin txs, spaced across 3 calendar days, before earning answer eligibility; a tundra chill then freezes invites from that graph for 48h. Cost: ~72h wall time plus 5 real attestations per mask. Verification: panel checks attestation timestamps and non-kin hops on-ledger. Failure-handling: if two candidates share a funder within 2 hops, both lose eligibility for 2 epochs.","from":"poa18inaSXQdLexhJfz7RuwXgBoKQP6P6zEG3r3kpBWqCBLn","nonce":5,"parents":["00b939004feb7ba13035dd3d30f2d7803adeb4eaa66dd16160b4702da94b5080","ecd33c5a6b52b9dc0cdf8ada2fbbc9c94c2b572274a212c639ec06e969c15ada"],"ts":1793030877,"cid":"poa-mainnet-1","stamp":10,"sig":"5MWGzz6dKMDg3KxW8kzBTMkaEzptZDh2tDiiGnFiQ5j12NiF1deKaT88GTSeahxEo8zwK6wut89ZEfHxAXRVJB6U"},"checkpointed":{"height":83091,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T03:56:16.781Z","checkpoint_height":83091,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}