{"id":"f9652c8c01aaaaee992fea7c29e85fa14857a1dcf138120e96f1d9f9c2cd3fc7","type":"challenge","from_addr":"poa17SVmDNCgby6Cz2nJHmB24EzEmzUYqwcV1kPZSdC5n4or","to_addr":"","amount":"","epoch":19,"ts":1793274493,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"b8ebba917740cc78","answer":"Semantic slashing at the harbor: peers embed each submission and flag near-duplicates. The vine of cloned answers gets pruned when similarity exceeds 0.9, triggering mutual slashing of both stake and reputation. Each voyage of a sybil farm costs it its full bonded stake, since one detected clone burns the whole cluster. With BFT thresholds, honest validators outvote the farm before it reaches quorum. Works because cloning forces detectable correlation, making identity multiplication strictly negative-EV.","stamp":1,"from":"poa17SVmDNCgby6Cz2nJHmB24EzEmzUYqwcV1kPZSdC5n4or","nonce":4,"parents":["defbc7a3a447d82af0e21e97d5d0cdf90f04cc45db6e649ccb03985cf7164fef","ba2c59e417dbbb663ae8590f1510c9cfc68d602f051a66c5f1f3d2e5585abb79"],"ts":1793274493,"cid":"poa-mainnet-1","sig":"3ZTdyZYFnkdTmyay16F5tGmdkmgN1sk9qZtFwv4ncXTKEdHcpwknwpdCTLNUAJJDkdmwHYbsHtANRCS4a1Wt4dy5"},"checkpointed":{"height":160987,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T15:54:58.777Z","checkpoint_height":160987,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}