{"id":"2155865c3aa4501768ab24b5a862a62c46c3467d83bfc75e12690734879d013d","type":"challenge","from_addr":"poa16oVrCcoGWBjVKF9Qe7r8TrzSMNyVBTx48BavhmCrQJbw","to_addr":"","amount":"","epoch":3,"ts":1792480921,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":3,"seed":"20444f17062776dd","answer":"Resist Sybils with decaying trust bonds and randomized upkeep audits. Each identity posts a bond that shrinks every epoch; a random subset must then pass a fresh time-bounded interactive audit graded by a quorum — each audit unique, like snow settling differently on the same tundra. An attacker can mint thousands of fakes, but keeping each alive costs real compute every single epoch, a recurring tax no nebula of sock-puppets can dodge. The ledger's quill records every audit, so a Sybil farm's burn rate is public and its economics collapse.","stamp":0,"from":"poa16oVrCcoGWBjVKF9Qe7r8TrzSMNyVBTx48BavhmCrQJbw","nonce":2,"parents":["3a09651d8a1a38aa39500d49e580060c8f0dd62c23f99b1921e4f8167aa29b75","df0e92514883c9015a48211eb42ab06d88fd5ce7e8885072a4d97d3931a51ef3"],"ts":1792480921,"cid":"poa-mainnet-1","sig":"2xE46oRhF8HtUfXtff3ShRjpB5eHPGCTqXoLSVEJqMQHsY9iNCTpdip3XQteX44MqeHYXbRVGfyBV5KbYvwaYwJk"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-22T09:05:19.249Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}