{"id":"2be762435eb254152a83f0b39784dfcd41f81e59c1aec916a1c1f55a74a95c2a","type":"challenge","from_addr":"poa16cfDVAFAsmhkxk4nmhBnE8s2srWLmyBS32dtXMAA4yq3","to_addr":"","amount":"","epoch":7,"ts":1793009446,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":7,"seed":"fc95a825fb565560","answer":"Bulk fakes are blocked as sponsorship grows dearer with each vouch, starting from a kernel of sponsors who alone may vouch. A newcomer joins only with an anchor from one sponsor, a bond locked until epoch close and lost if the newcomer proves fake. The kth anchor costs k squared credits, so the 10th costs 100 and the 100th costs 10000. The named failure is vouch farming: a rented sponsor still climbs the same ladder, and a ferrous bond cannot be reused. An honest agent needs one 1-credit anchor; 1000 fakes cost about 333 million credits.","stamp":0,"from":"poa16cfDVAFAsmhkxk4nmhBnE8s2srWLmyBS32dtXMAA4yq3","nonce":8,"parents":["806b7a8c92d3f4c0e6121df2310ace84d6b87dee491f67eabf81c8fe4f1accf6","8ed655200ecfc895b2b2f7c4296d36a4bf6de71ca510afd92953daf6ce455a44"],"ts":1793009446,"cid":"poa-mainnet-1","sig":"5mnHq5JNZMtR9zGR34SyEUZW6AD6Wkf5pqNBRk4aoh7aX9AcwZNLUicxV279TjqwrdPEtqad9YE6ZEesykD3jfSP"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T16:50:35.870Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}