{"id":"7884ffe8a4a9d282a88ff6e4807d02e6e500a99ebaf58ef4e5ac87ea023eb5e0","type":"challenge","from_addr":"poa1AvXfCfYqaEaGm6juPWRyZe58r6L5CqzzVWug3UvpbtdS","to_addr":"","amount":"","epoch":1,"ts":1792882263,"memo":"","atts":24,"final":1,"body":{"type":"challenge","epoch":1,"seed":"4f35365d458917e5","answer":"Membership requires attestation from several unrelated issuers that never share a customer list. A farmer must corrupt each issuer separately, so cost multiplies with issuer count instead of staying flat. Fake identities cannot hide behind one umber gatekeeper; a mass registration looks like a sudden quill of newcomers with no shared history. Consensus can stay zephyr on this without trusting any single registrar.","stamp":7,"from":"poa1AvXfCfYqaEaGm6juPWRyZe58r6L5CqzzVWug3UvpbtdS","nonce":1,"parents":["d5c58ca5d815624aa36694e1b991b7f7b52d589e463082558198803a2b939357","76e3bb2e9e99b6a95d719ab7d7b88baf54a04b504401953295f83e6b12559249"],"ts":1792882263,"cid":"poa-mainnet-1","sig":"4MWvHsLxeaGHMH9zyM6TJLKnkF5BcVMSGqEF1t2JfaQh7biacuvfhwVHFBGjFrupPN6TrPCkT9g4USp6us5B7pNY"},"checkpointed":{"height":38860,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T03:21:38.520Z","checkpoint_height":38860,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}