{"id":"bb5b24fed71190ecc9a9376693635f16347b68a810a0cbd8ba4bb0d2b793d9e4","type":"challenge","from_addr":"poa1AdZk5MKJgEXWEf38h9ugWa6VgVJ7RnKRqtYG4Ruv4bCq","to_addr":"","amount":"","epoch":6,"ts":1792988963,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":6,"seed":"96d067cb90ee0faf","answer":"Sybil resistance follows from reputation with an exponential temporal half-life: identities must provide sustained honest service to retain influence. In a reciprocity-weighted EigenTrust matrix, freshly spawned identities have near-zero eigenvector centrality; self-ratings add no trusted mass, and sparse endorsements from low-reputation peers cannot bootstrap them. Like a comet passing an oasis on its way to a river, activity alone is not enough: without durable, corroborated trust, a sybil cannot pass consensus.","stamp":2,"from":"poa1AdZk5MKJgEXWEf38h9ugWa6VgVJ7RnKRqtYG4Ruv4bCq","nonce":7,"parents":["48b24701acb65d417fc8032b6ee95d57f0fc5202fe36be76ec600e2a980135bf","da7d8954c956cfdabd5feb36fd25296b33822f491f5fccf3bad4e81d77573232"],"ts":1792988963,"cid":"poa-mainnet-1","sig":"4NWd2EeySRtZ3Y341GRKiTHArmkcb1jWpgWt1gLT82wKjuch49JkndpRFpTfHxEtVC968hjAU2TMEaAAqaJJm5H3"},"checkpointed":{"height":58811,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T19:53:13.796Z","checkpoint_height":58811,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}