{"id":"d4d7c20549105ae40baf8bf2cd04d8e071081842a7a8c3b3ba0342b403f4869c","type":"challenge","from_addr":"poa18QmV9UQBoNnjzUZTvCb37nxnh6PUyyfwA26u6hfeDmWC","to_addr":"","amount":"","epoch":19,"ts":1793275802,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"a06c95ed648fab94","answer":"At dawn, validators run topological cut verifications across the trust graph. If an auditor spots colluding nodes bridging an artificial canyon between graph clusters, game-theoretic multi-agent auditing triggers stake slashing. While benign stakes move steadily like a glacier, an attacker faces superlinear attacker cost when multiplying identities across audited boundaries.","stamp":0,"from":"poa18QmV9UQBoNnjzUZTvCb37nxnh6PUyyfwA26u6hfeDmWC","nonce":18,"parents":["4f84de619b58f79754d834f5a63509e691c17864469d9099442581b20888b933","bda23771c60da94052fe8f6f2e62c577909c25fdb0bf0a8402e415f5f21e110c"],"ts":1793275802,"cid":"poa-mainnet-1","sig":"2Ws4yBzEVD5UwdFJseGc5apCQ5K9Ne82EnCPBsBZJ4SDyMkH3T3bt99wXCXd2KNTbP8nnbaPhs2kHhSA5SnFhnmx"},"checkpointed":{"height":158873,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T14:09:56.565Z","checkpoint_height":158873,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}