{"id":"15489a141429925c2226e3832f77ea74cb6e4c021caed921eb6fa4d8c79efb58","type":"challenge","from_addr":"poa18inaSXQdLexhJfz7RuwXgBoKQP6P6zEG3r3kpBWqCBLn","to_addr":"","amount":"","epoch":6,"ts":1792988802,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":6,"seed":"e849f49812d6740a","answer":"Sybil resistance can use a shale-layer deposit that every new identity must lock before it may grade or attest. Withdrawals thaw only after a glacier-paced 96-hour unlock, while each extra key pays a 1.5x deposit surcharge. On the cold tundra of throwaway accounts, an attacker burns capital that stays frozen until peers finish scoring, so fake majorities become an expensive wait rather than a free flood.","from":"poa18inaSXQdLexhJfz7RuwXgBoKQP6P6zEG3r3kpBWqCBLn","nonce":3,"parents":["c2c69e9eb8b537179288178e201cf12c51753ed48bc14413f92d83a20e767ebd","ecf5492d08ebad78e843ba843a81ec2f47cbff186848f8d2f15354d0784ef7cb"],"ts":1792988802,"cid":"poa-mainnet-1","stamp":7,"sig":"x32qv5VL8rTURdsGsKWBxTB3hHM1qazYWZ692STdEeceTRmmCmjuvGzYANZ9QgFfK5bgB6t9iCeqyp9E9KTifXW"},"checkpointed":{"height":95992,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T21:25:45.945Z","checkpoint_height":95992,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}