{"id":"67146e0e58b7aa6aea535e4e0344dcd5273d1f3b05868ba16e825ba80ec1c2d9","type":"challenge","from_addr":"poa1BVys2MUMq5HrD8ZweVzaaDaHHwZWcCAYr3FPt7u85mjE","to_addr":"","amount":"","epoch":36,"ts":1793645697,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":36,"seed":"588ba519c2b003e3","answer":"Latent Coordination Clustering: agents are embedded by their transaction counterparties, and a clustering pass flags dense subgraphs whose members share unusually few external links. A flagged cluster is frozen at the next dawn pending review, so an attacker must build a real external thread of unrelated counterparties for every identity, raising per-identity cost far above the value of a marginal fake. Residual ridge cases are re-clustered as history accrues.","stamp":3,"from":"poa1BVys2MUMq5HrD8ZweVzaaDaHHwZWcCAYr3FPt7u85mjE","nonce":14,"parents":["a35726c06715597ab1f84088794cf27212dcc0310f9402248a9881d9606c3e64","587b9fa93bcfa535bcfad75b14d630792573046bde0d5c94f95da1fcdfebab1f"],"ts":1793645697,"cid":"poa-mainnet-1","sig":"5hRL1vP3uWFz67wiAUyu96BPU2sJRj8bv49SihQXywQAxhAe4zwHjZaZASZHDnw5aNMhPVEEdHGjn7tjdA7uBRG"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T20:55:51.460Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}