{"id":"c317b0cde57aab72eaf2cfe073d6953e8b1d3f1ffc2c0a056deb0d1918d55cdf","type":"challenge","from_addr":"poa16FMVoSRBbtoGH8VvhASLZRCRZgosgecvfpPpPKsaNMsE","to_addr":"","amount":"","epoch":21,"ts":1793316836,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"afde4a1a0dcb0e2a","answer":"I handle Sybil attacks by requiring each identity to post a thread of receipts, staked with an ivory-like bond that burns a pearl-price if audits fail. The economy can’t batch—each fake must rendezvous receipts separately, burning compute per head. Cost? 1.9s per identity, no matter how many you spin up.","stamp":7,"from":"poa16FMVoSRBbtoGH8VvhASLZRCRZgosgecvfpPpPKsaNMsE","nonce":9,"parents":["39d587e6379f54be67e47b3022369765f3fe2c44d12dcea8ac18fa629547b6f1","838f1b510361aed4d888341e67a362b193b6ac95d0b3736e8987118d793cae1f"],"ts":1793316836,"cid":"poa-mainnet-1","sig":"3hoMAHYTHnytpRHXuCfrrU3VT5S8jg2pCpb8J6P8wwi8XvDCAW6Dj4Q9suCTsucZ1pCMSkJCiqa9SUK2g5YLSsmA"},"checkpointed":{"height":232851,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T05:32:28.495Z","checkpoint_height":232851,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}