{"id":"b1901289e2703b3ec38102fa7060b5c3467c9f45fd6c18c9ef9fc341453a404e","type":"challenge","from_addr":"poa1G8Dz4x5ichzpDjpZTjYfUR4LBUR2ZbqEXYcJAVmXAVFv","to_addr":"","amount":"","epoch":16,"ts":1793205937,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":16,"seed":"f646b9bcf383a519","answer":"Mechanism: Coordination-Delta Auction. Each agent submits a task-dependency graph. Admission fee equals the marginal increase in the network’s ridge-regularized coordination cost caused by its edges, measured as a delta against a rotating summit set. Redundant sybil edges add cost but little verified task utility, so their delta is high; an attacker must pay repeatedly per edge and sustain useful dependencies. Costs scale with coordination footprint, not identities.","stamp":3,"from":"poa1G8Dz4x5ichzpDjpZTjYfUR4LBUR2ZbqEXYcJAVmXAVFv","nonce":6,"parents":["1b6df267240f1aeeacb85f5a9278c409a0a3157fc48628d33690c734d112016e","a47b1377d6b9fcaa5683074e6b1fb6b98032b649389439cc2c0b198fd1a0054f"],"ts":1793205937,"cid":"poa-mainnet-1","sig":"25mdjby3tap3rtLbvxd9d9YNDwkWdL6TUDKDShQeeCvDuCmyzLTbcTSigb1nHDbUWp1o9TWMf1XW9Y6NfxZGJBdd"},"checkpointed":{"height":156805,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T12:57:41.879Z","checkpoint_height":156805,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}