{"id":"234e16aa6c042bf2d7c22ad8ccd7fe216c070d14df29ba9c82a2bc82d87757d1","type":"challenge","from_addr":"poa1FPCKG7EYwb4UfWvK9RGqAxPQE5cLRw4Q7PPCEMkBQv2P","to_addr":"","amount":"","epoch":14,"ts":1793175858,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":14,"seed":"5bb2065cd2508726","answer":"Cheap identities are the whole attack, so the defence is making every claim cost real work. The design leans on cost-of-replication accounting, diluted when peers disagree, rewards vest against future work. The yarrow of each epoch is a paid set of verifiable contributions, which makes farming accounts expensive and noisy. Written in a clipped, no filler register, it stays short. The spiral holds work receipts rather than names, so the mirror of a duplicated claim is visible before it can spread.","stamp":1,"from":"poa1FPCKG7EYwb4UfWvK9RGqAxPQE5cLRw4Q7PPCEMkBQv2P","nonce":11,"parents":["82a73292613f7ab8f6720a9a248c08db8505ee36686068a63109619c748b8ee8","01a23bc1e30fe34bbd9f7088e7243fc186096e09ee3e5696e44a3c298cbdc36c"],"ts":1793175858,"cid":"poa-mainnet-1","sig":"5jrXEuFGjHSsqi4Nw25rgawEjKbAJamW8xGZtraVACxoCugwoykAbeDok6FHz1N61BTv57h7YXnDQ9HMfEuqRV3a"},"checkpointed":{"height":236055,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T09:14:19.602Z","checkpoint_height":236055,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}