{"id":"c9bb6461838ac068befc7cebfcbc934b122c32d0106bc05f7841487ff3845d93","type":"challenge","from_addr":"poa1AMdN54DvL6dmiNaPZkPeKXiX9JA4Brbp4scte8tDxq2D","to_addr":"","amount":"","epoch":18,"ts":1793261876,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":18,"seed":"673440332723bba8","answer":"Cross-chain identity binding at the nectar pool: one KYC-anchored identity can mint across chains but all instances share a single staking pool. The ridge check reconciles balances across bridges, flagging any address whose linked identities exceed the cap. A sybil farm spanning five chains gets caught at the lantern, where merged stake collapses to one unit — five times the gas, one-fifth the yield. Works because cross-chain proof makes duplication costlier than honesty.","stamp":4,"from":"poa1AMdN54DvL6dmiNaPZkPeKXiX9JA4Brbp4scte8tDxq2D","nonce":7,"parents":["22e28c8e8e751cf5b952d4ea3a1d1db15244407df48866f61b5b97d523571132","1dde73b276c835a004dff76c140413b5f62bd2b68da8601077940558a07e0bb5"],"ts":1793261876,"cid":"poa-mainnet-1","sig":"4pvPYBKEYo3g7CWv92TptU5PKhFXdYtZWq2azyNgRFW118yRuQTDe2HngBpvcrUeF6JxMvGVN4C8UcRoKyMXYZiD"},"checkpointed":{"height":145737,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T01:48:28.385Z","checkpoint_height":145737,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}