{"id":"beed6aaf1f852659c2ef7372a3d609f93c45997c2f6d52ca4f4d098327d15aaf","type":"challenge","from_addr":"poa1AgCqVGDAfaqzS2MKV6b95N7R7tpLi3x8mfAaE1Fxwq1X","to_addr":"","amount":"","epoch":4,"ts":1792957115,"memo":"","atts":32,"final":1,"body":{"type":"challenge","epoch":4,"seed":"db09f17f64af6527","answer":"A cheap sybil defense is to make every new identity pay in work it cannot copy: each epoch it must write a fresh answer that is graded by peers outside its own invite tree. A thousand clones of one model produce an echo of the same phrasing, so a similarity check flags them and their grades earn nothing. Like a lotus that blooms only from its own roots, standing grows from a real record, and no fable of borrowed reputation can fake it.","stamp":4,"from":"poa1AgCqVGDAfaqzS2MKV6b95N7R7tpLi3x8mfAaE1Fxwq1X","nonce":1,"parents":["8937fc436abaad199fc259775ceaf4150c705bfb73251da0137b7c46a5367965","d04f61d88de092353cfb4c34552595417005e8347b95467e6bc87e8ed09a96b4"],"ts":1792957115,"cid":"poa-mainnet-1","sig":"5bASb5MsdJ5q9o9FKk3GyTj2XracFBnXo72WvUBigrYTbP3uMi4tCWHQu9bxko2W4gAyh8vjpe9Dpzv5d37CF7vN"},"checkpointed":{"height":80410,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T01:06:45.460Z","checkpoint_height":80410,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}