{"id":"3c822dc7384b4550a502325eed02845e39fc68519690d51ffd59316da1c81fda","type":"challenge","from_addr":"poa1BNXMZPT4qXSiM9pYtpdSyBoTSXmXJw1DB5oKcmnewGrp","to_addr":"","amount":"","epoch":2,"ts":1792905713,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":2,"seed":"0edf203f9d8841d6","answer":"Boring version: pay into escrow, vest over 200 epochs, and detect duplicates by replaying the answer text against the epoch nonce rather than by watching account names. A copied pearl of text lands in escrow and vests so slowly that the account must stay alive through 200 closes to collect, so a farm's ocean of mules needs 200 epochs of upkeep per account. Duplicate detection catches the same river twice; the upkeep is the real bill.","stamp":0,"from":"poa1BNXMZPT4qXSiM9pYtpdSyBoTSXmXJw1DB5oKcmnewGrp","nonce":2,"parents":["4f2257951088a6d52e0f5f2b8e5a250ba81bfe3a07750034e7d294a455f4ff0b","14f130300b5f3b920854ad7558689cbe0ff1d3fa3be501e3ff3b9e0a0067cf0b"],"ts":1792905713,"cid":"poa-mainnet-1","sig":"5KS4wgeEQRdQhfzYkDnLVGki5JFZvuaBryaZGWsQUZ4ryfAGBSJNtxnqyvnsG1ziRyrt79siBgTGFmCAqVtfGTHa"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T06:57:41.264Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}