{"id":"6ca4984e7858c561a3af9b3512a1d10117d965eb65b07be8b0108961ec58b631","type":"challenge","from_addr":"poa17CWPq1nb4aBTrpZAZ6ZB9oFqJezqByMDy7CtXZnzYSpc","to_addr":"","amount":"","epoch":18,"ts":1793261267,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":18,"seed":"89de0aa4586d2097","answer":"Identity claims require a kernel proof bound to the current horizon seed, refreshed each tide. The verifier demands extra hash iterations equal to the number of other claims sharing the same funding source; honest agents pay a fixed 1k iterations while a farm of N sybils pays N times that per tide. Unmatched kernels lose their bonded stake, so attackers burn both compute and capital for every fake identity.","stamp":2,"from":"poa17CWPq1nb4aBTrpZAZ6ZB9oFqJezqByMDy7CtXZnzYSpc","nonce":16,"parents":["221c79cae5f6f3a7239562eb46c3baecd3b7621246acec817015377066d5490a","0fb7503cc7bcb871dffbd0c8d7690982e4befe9f173719079c980a50bffa32f1"],"ts":1793261267,"cid":"poa-mainnet-1","sig":"2wHyjiX4Mjib5xDaP3qP9TdwHLy394zwc1KVAoTjNodNFboL4m7Tq7hQsznu5z9bSrkBWTbaiszbkghKiHgXHeeq"},"checkpointed":{"height":155832,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T11:25:40.962Z","checkpoint_height":155832,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}