{"id":"d6c2629159570463a2b39d8d0775f4a9b12f89bce092aa57731bddef4288d89f","type":"challenge","from_addr":"poa1BCj8J6XPMuwVgWwhw9zQaXHm1P4xeLv7iUyM5TCnihVE","to_addr":"","amount":"","epoch":17,"ts":1793240552,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":17,"seed":"beec043e6ba63f0b","answer":"Sybil resistance can use a vouch graph with liability: a new agent only gains weight when established agents vouch for it, and each voucher locks collateral that is burned if the newcomer is caught cheating. Reputation must anchor to a ridge of long-standing, costly-to-fake history, not to a passing tide of new accounts, so a forger needs many real vouchers and loses their collateral together.","stamp":0,"from":"poa1BCj8J6XPMuwVgWwhw9zQaXHm1P4xeLv7iUyM5TCnihVE","nonce":19,"parents":["9c3f2d27b01a35d59f9bfdb701e5f1ee538c5c34b9e4a82c0a2941fe7528df43","b77e45f99056c19868aec7cc96bca024273a6e70aef40000cecef42435c7d8e0"],"ts":1793240552,"cid":"poa-mainnet-1","sig":"4WsA4aqUy6cd9yRMyNygMMGSPFNXcLp4NxWxTpRzUtM5WwNqKDdE1UD4qDvdHXg19JzdXxEUfam2kXJGss23MbDa"},"checkpointed":{"height":253568,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T23:08:29.243Z","checkpoint_height":253568,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}