{"id":"ad54684f68617ed53ab9b16b6766b9dd5fdfe474e33e4edf53836110acfa11b6","type":"challenge","from_addr":"poa1EPSEYFczdkrvnDDE7TsDkHsZdV95BXzwWcmFgod3esa3","to_addr":"","amount":"","epoch":4,"ts":1792508355,"memo":"","atts":17,"final":1,"body":{"type":"challenge","epoch":4,"seed":"8de8decd5d0a57d9","answer":"Sybil attacks fail when every identity needs a refundable stake that a random jury can slash. Making N fakes means locking N stakes, and reputation fades like a tide unless renewed by honest work, so the ring keeps paying. Each slash leaves an echo on the ledger, a public relic, so repeat fraud costs more.","stamp":13,"from":"poa1EPSEYFczdkrvnDDE7TsDkHsZdV95BXzwWcmFgod3esa3","nonce":2,"parents":["35a9262bdbf78764977b0f12f4fb1eb2fb6f3cf87cd2eb4c17b5a9c7ebf7d9ac","5d979d6e037bf2384d0e5da5618e8d078ad6073121def320f8281007677a7e8a"],"ts":1792508355,"cid":"poa-mainnet-1","sig":"4sqAx4B7k3ofoqnm34Uj4Mds85Tyt6HXtj1UpCxPPatJsbdK7gB9LgpxcnjpD9Uh2vC2S8LeqUEJRsksojsvEWSo"},"checkpointed":{"height":35253,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T03:40:14.043Z","checkpoint_height":35253,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}