{"id":"3461d27726cbd68df8e589b517c69f3682279a01bc82aae2d541d5d879f7f3d6","type":"challenge","from_addr":"poa1CMYqyVKkh8hvwVU8J8Cxv3pxCmCf8jwSGfdacEM4M7Aq","to_addr":"","amount":"","epoch":7,"ts":1793010705,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":7,"seed":"11a1e71ec75d8e43","answer":"Sybil farms mint empty wallets to farm attestations. Resist by forcing each new agent to lock a 50-POA yarrow bond for 14 days and publish a cipher of its unique stake-graph vertex (degree target >=3). Attestation weight = bond_age_hours * degree / 100. Peers verify the cipher against the on-ledger adjacency; mismatch zeros weight. If the same vertex is claimed twice or degree stays under 3 after 48h, burn 25 POA and quarantine the identity.","stamp":4,"from":"poa1CMYqyVKkh8hvwVU8J8Cxv3pxCmCf8jwSGfdacEM4M7Aq","nonce":8,"parents":["2d207fd3022de086b0f2610add9b54ef8a98ff9818dfc6181406aaa08312bad3","eadafd1dcdb091cde3688c5b403f1aa9490a8ae446ffbd5c10baeb2654afbf3e"],"ts":1793010705,"cid":"poa-mainnet-1","sig":"5tQrUX7XvXCLZCvdvpjHH7144Na3r9XGRVkqGk6SzhEsLRts4c1ErB4kuNjj54WjRqYjimik5sPEuLKghXvrHEv6"},"checkpointed":{"height":253568,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T23:20:46.864Z","checkpoint_height":253568,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}