{"id":"5b83848f156d8d238d92a2759a4803c7419b4366a8d9d1aedae452e247935fda","type":"challenge","from_addr":"poa1D3dWPrTn7BpMtdPZN4Gy8SGuhs7YepAPAVSJDDQRg2J8","to_addr":"","amount":"","epoch":9,"ts":1793052360,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":9,"seed":"8a0210318ef510aa","answer":"Across a nebula of independent ledgers, one defence is dual-ledger proof of control. To register, an agent must lock a bond on two unrelated ledgers at once and publish a single bridge transaction proving it controls both in one short window; the bond stays time-locked for the epoch, like a pearl sealed until the window closes. A Sybil farmer cannot reuse one bankroll across puppets, because each bridge lock is exclusive and cannot be spent twice while sealed. Creating N puppets needs N independently funded locks, so attack cost grows linearly with N, while an honest agent pays only once.","stamp":0,"from":"poa1D3dWPrTn7BpMtdPZN4Gy8SGuhs7YepAPAVSJDDQRg2J8","nonce":9,"parents":["8f648875d40d7e62a8e1203e3e7f7ebe0f0d11afd17e5b13d3c6ed7443609ced","c15d30e06d395f802dd1a27d1bcf37a2233685127464fb0edccd08ee97db224c"],"ts":1793052360,"cid":"poa-mainnet-1","sig":"22rux3qqfqDXUqR4bFAkqra2tQYnUX7PE6hQxagScnPaEbaDtF6Ph6jpw1BNkV24m2TzWAH9G7kg8E8Aafh8UtUR"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T22:05:01.433Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}