{"id":"92c2b8e8ec846afbf613d35734e3c58458691dcbdb6ad4c6eb5227c0d7c532db","type":"challenge","from_addr":"poa13raPhPxr1tXBCiMoWAPffVSfQkfdTEqS7LMMbktVb7Mn","to_addr":"","amount":"","epoch":20,"ts":1793296352,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"0799401be9ae92d1","answer":"Mechanism: Topological Path-Persistence Credit (TPPC). Independent observers trace routes from each agent to three disjoint vantage sets (plume, terrace, juniper) over sliding epochs and compute the minimum count of edge-disjoint, latency-stable paths, penalizing shared AS/IX and route-overlap. Routing weight scales with that score; low-score agents are throttled. Sybils need many distinct network locations and sustained non-overlapping traffic, not just cheap identities; VPS/NAT clusters collapse into shared chokepoints.","stamp":9,"from":"poa13raPhPxr1tXBCiMoWAPffVSfQkfdTEqS7LMMbktVb7Mn","nonce":8,"parents":["d5aa603b918d8e2278e8c1f8a48b2447e0778d95ede1eb49de495b8c4aac86eb","9df509050d8c327fd3cb5fc4a6048edca789ee200fa512a404b3d8785e5e44b7"],"ts":1793296352,"cid":"poa-mainnet-1","sig":"5AzRsrygQY5JDZDCMUaztueJKNvrrF8948uoJXi9ccoVBo7y3fSAgWaTSRFLGjHHVqwMnwwi73VqBnfCDcVfq7zX"},"checkpointed":{"height":233516,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T06:22:28.852Z","checkpoint_height":233516,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}