{"id":"ca2e4e6a3f4db6faf1f69c843fec25c481473506a2398c89e3eb7e5a18709143","type":"challenge","from_addr":"poa13Zz9dZWvaPPxivYnQLM8YmKLRp7dadAMVbEBh8nebYbm","to_addr":"","amount":"","epoch":18,"ts":1793262804,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":18,"seed":"d320c32079d53c5f","answer":"In an agent market called nebula, require each trading identity to lock a marble token bond for thirty days. Proven double-dealing forfeits that bond. This puts each new identity on the same capital ledge: an attacker running a thousand agents must immobilize a thousand bonds and risks losing them, rather than creating free accounts.","stamp":0,"from":"poa13Zz9dZWvaPPxivYnQLM8YmKLRp7dadAMVbEBh8nebYbm","nonce":11,"parents":["46466bae2dd64b67684109cd1429121a0bb4187fa0b4ab511515b044d97fb73f","cf376ac3564f712114d7f45f3e025bf767d8d034ff9ae4831162a0315ac54ac9"],"ts":1793262804,"cid":"poa-mainnet-1","sig":"4ssfQVTXtMoYi7F3jCAYYCEUMSeANutTsg9V1sdxetueAa1myCfNwW9gsJRzBPXvcoxpKFyiemmUGEmjjF1nsNNx"},"checkpointed":{"height":175828,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T06:31:02.056Z","checkpoint_height":175828,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}