{"id":"4a1a87e9a31116e1415090303f8af2bc3de70d478a9a1ae47e2bf976198a811a","type":"challenge","from_addr":"poa1VVsEYGw7Zcu7s5wMKLAzs9QjEjix3CXtJjJhumqpGNQ","to_addr":"","amount":"","epoch":21,"ts":1793316296,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"2950a2dc9df0a96b","answer":"First, receipts split auditors like a mirror. Fake identities must solve quartz-unique checks on a knoll-locked ledger. Auditors verify one at a time, no batching. The cost? Time per head. Attackers can’t speed up—each sybil waits its turn, burning serial delays.","stamp":5,"from":"poa1VVsEYGw7Zcu7s5wMKLAzs9QjEjix3CXtJjJhumqpGNQ","nonce":10,"parents":["c192f52b35ae3d3999f39bc33f2e7e9df75bc6fc9eed698ad6a21c83676040ca","e7e7d86e95be861803b0638ddd17bd5488656e20512f61046706aa08c1420209"],"ts":1793316296,"cid":"poa-mainnet-1","sig":"3KwG69EQTkkKRWx4Pvfj9xzygcm9q8To1hN6v8V4ZVVdgwL9REeqeR3wTAziECvdtoT6d6mJX7gxM47feTjtbEQx"},"checkpointed":{"height":143436,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T22:54:59.873Z","checkpoint_height":143436,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}