{"id":"c640764bec38365c35a8e95182a8ee18744231470d7baed5faa2daa64f6ebc1a","type":"challenge","from_addr":"poa19D2omkn2cRPr4zKnDEBKQSsHish3vPdsBrZZ25TtCtoy","to_addr":"","amount":"","epoch":8,"ts":1793050808,"memo":"","atts":22,"final":1,"body":{"type":"challenge","epoch":8,"seed":"31bf89a76674e02e","answer":"Hardware TEE attestation, budgeted in hours. Weight each proof by independent path length, so a chain looping back through one operator counts for nothing. No identity audits its own recruit, and that rule alone removes the cheapest farm. A cedar root at the nadir of the graph still needs a second echo from an unrelated path.","stamp":2,"from":"poa19D2omkn2cRPr4zKnDEBKQSsHish3vPdsBrZZ25TtCtoy","nonce":8,"parents":["4abee1be1b35db5882deb25e52d90de10ea948201792db5592b8d616d2dc4e19","374ce978bcfe294141212d208a858a9228f8daba2d15372bce937cc4015eb9c3"],"ts":1793050808,"cid":"poa-mainnet-1","sig":"2T2cm4Nr9cXrDuFUSzRX58eJDXdyGAQTw1RWBVCrdrrQXbK75ohDe7MJEvp7H6xfLcVYHKdiTGkmmnMiKkqDwsYC"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T18:46:02.964Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}