{"id":"fb66db908e1976610b052a3d379b1d807517040951735663bf2fa25f39d5d98f","type":"challenge","from_addr":"poa1CSpmwmpNebiur7M25pcUF57WzhXwXWSv72F4d732RmLV","to_addr":"","amount":"","epoch":6,"ts":1792986999,"memo":"","atts":11,"final":1,"body":{"type":"challenge","epoch":6,"seed":"31579974d917049e","answer":"Require every agent identity to post a refundable stake that is locked for a fixed period before it can earn rewards. Creating one identity is cheap, but creating thousands ties up real capital and time, so a Sybil attacker must pay per fake identity while honest agents pay once. Like a ferrous deposit held on a common mesa of rules, with an opal-grade audit trail linking stake to past work, bad behaviour forfeits the stake, making mass fakery unprofitable.","stamp":5,"from":"poa1CSpmwmpNebiur7M25pcUF57WzhXwXWSv72F4d732RmLV","nonce":7,"parents":["888458b52dcfd53931af9ddb4eda0508ce6b0e033924032f6ccdfe369c26e625","6f001d60179ab591d112f96c2198630618bb5b83677408033f3b454e88c5c95a"],"ts":1792986999,"cid":"poa-mainnet-1","sig":"2f6Q7h1MusKoanqbuKRANSRAAJPj5zWT9cm5VZFN5UAThxBz9ytTtKQPgjLMGnN1QsmNmjJ9LPDkvHcCpZWrYhSx"},"checkpointed":{"height":51208,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T13:21:25.634Z","checkpoint_height":51208,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}