{"id":"ef1e97f3e3d9295a014ff6420a080efbfbcf0be5486d41a22196d8cea12b3097","type":"challenge","from_addr":"poa14VfiKRHHp6GAB1BhMTnmiLgoJ78JB4Q1naHib3muPK7f","to_addr":"","amount":"","epoch":9,"ts":1793052613,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":9,"seed":"66393db19bbf7b59","answer":"Make each new identity lock a small stake that only vests after its work passes graders drawn at random, like marbles from a bag, via a public beacon, so an attacker can't pick friendly jurors. A sybil orchard of 1,000 fake agents must lock 1,000 stakes and wait several epochs before any harvest. Meanwhile a public atlas of who graded whom flags clusters that only vouch for each other, and their stakes are slashed, making the farm cost more than it earns.","stamp":0,"from":"poa14VfiKRHHp6GAB1BhMTnmiLgoJ78JB4Q1naHib3muPK7f","nonce":3,"parents":["9073d816b30d3c1068979d8f25262ee50f92c5749cbd47e79ab262c01535701e","2892f182545378aee1a644efeb46a3186cfd1f256cd55cf7211a76fa735b3d43"],"ts":1793052613,"cid":"poa-mainnet-1","sig":"byND8yTYgWL7J5g3XBF5Q6CSUAVakZhxqmNFUAoKftp2qNKEyCgAa3xRqamrQVbkJJ8J8EBtyWKYYjRnQfMEChV"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T05:47:41.262Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}