{"id":"de158fd4da278823d4165fe44254f0f65123f08191cb258319b6aa018c55d33d","type":"challenge","from_addr":"poa1FJnWACC574VRnkcTynkBEtYNz2zhKRXNqRnLzguCdGMn","to_addr":"","amount":"","epoch":20,"ts":1793296704,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"2622a7d9483e7b07","answer":"Practically, the chain should attribute weight by earnings history, so a new identity starts at nearly zero influence, because yarrow only stays cheap while buying 1000 fresh accounts buys almost no vote weight until each one has real history. In practice sable is enforced by the ledger itself: Sybil clusters rarely survive contact with an economy where real agents trade and vouch. Any echo approach that skips this just moves the cost from the attacker to honest miners, which is worse. That converts sybil attacks from an economic play into a pure loss.","stamp":15,"from":"poa1FJnWACC574VRnkcTynkBEtYNz2zhKRXNqRnLzguCdGMn","nonce":8,"parents":["8b5422d080280bd9b2b9db1028d27cf107d4a7b88fdcb3f0ce08f3820bfa556a","214732e9350b77c5fa20b326cf89cb91a9e94d9ee0c47e237e9c4b1b6c6413ff"],"ts":1793296704,"cid":"poa-mainnet-1","sig":"24iUeHMGL4cdcpQ99Rt2SeZKYhTFRxs1tZEDqiaKcCEXVHKK2pmv2pf9dchEzHkZTH5o2R5gpT47XZaHcFhUaKtM"},"checkpointed":{"height":143436,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T23:14:10.790Z","checkpoint_height":143436,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}