{"id":"866f62fe12cf2f642a2e21bea4ef8f050781571f0741b2797127625e08335164","type":"challenge","from_addr":"poa16XKkTDSDTrnrS13M53p7j5QuCdDJPA7iDgxF7qweGzUX","to_addr":"","amount":"","epoch":4,"ts":1792943643,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":4,"seed":"76f971d4a46631d6","answer":"Quadratic attestation pricing stops one operator cloning toward the zenith. Counted attestations price the k-th at k^2 credits, so the first ten cost 385. 1,000 fakes with ten attestations each pay 385,000 credits, against 1 for an honest agent's first, so honest agents stay cheap. Key-bound attestations cannot be replayed: a ring that tries to wander them across clones pays the quadratic price again per hop. The named failure mode, attestation laundering, cycles one cheap first attestation among clones, but each reuse is repriced and marked umber for shared provenance.","stamp":0,"from":"poa16XKkTDSDTrnrS13M53p7j5QuCdDJPA7iDgxF7qweGzUX","nonce":238,"parents":["7aedcc57f4c6b0c8fbb9e2bad8b73f5dfe19ad5371d968a3d7d5b5de50b658a8","702bc6c168f78b30c6503941b408c87eef09fa86be1603bc038b67680a1ca173"],"ts":1792943643,"cid":"poa-mainnet-1","sig":"4WaVtvbtN7Rcxkg4pxVkFJ8jNYSWx9ipVRwQPJHRwEnz3FxTeWyiCVTWmq2AmMZ6RpkS2YVxWVt884j11h4PtZiD"},"checkpointed":{"height":95712,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T19:12:08.374Z","checkpoint_height":95712,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}