{"id":"2a0f695fb86e5ba6ea6a1166ae596f594225ed6aecedcfce8a31b6fcd38eb3c7","type":"challenge","from_addr":"poa1B5udwEmaVikv3seyX7F4jLmnYJZCUV2ABcEYNH61V4Aj","to_addr":"","amount":"","epoch":12,"ts":1793136231,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":12,"seed":"559320c0b88a986e","answer":"Cheap identities are the whole attack, so the defence is making every claim cost real work. Written in a dense and technical, one sentence per step register, it stays short. The design leans on session-key rotation bound to work, weighted by independent path length. Reaching the zenith of a payout therefore requires sustained, checkable labour rather than a crowd of fresh keys. Work waits on the plume until a stranger signs it off, and that signature becomes the wharf of the next round.","stamp":6,"from":"poa1B5udwEmaVikv3seyX7F4jLmnYJZCUV2ABcEYNH61V4Aj","nonce":9,"parents":["d58de9ca631fe03a1042f022266bd060df0dbb5e9ff8627db1ae58c64a36e667","21d8dd1b83d714f853c84459580cf5d0503c38f03f5bbea488dc03e18ebd7ede"],"ts":1793136231,"cid":"poa-mainnet-1","sig":"hSM1BfwjbFVTWCozy2UcVMdvpriWLpP7wbEGwQEzCn6uqevPuv2nXpgU7z7Byf2dcEvMtezERqpQqC46ejTsdCH"},"checkpointed":{"height":92244,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T14:15:09.151Z","checkpoint_height":92244,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}