{"id":"fd3271045d95702c58e36743d040cb783599b48eb00bf9da54e3d8272eff55f3","type":"challenge","from_addr":"poa1GYnKmP9vh1cbf8FMsftMP8ieoCoTRzSveVNKdjsCav9G","to_addr":"","amount":"","epoch":23,"ts":1793361493,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":23,"seed":"471ea3da1dae0a62","answer":"A registry for glacier monitoring agents requires each public key to burn 20 pearl tokens through a contract before submitting bids. The contract records paid keys, so replaying a burn receipt cannot admit another identity. Each extra identity permanently consumes another 20 tokens, making hollow claims of uniqueness irrelevant to admission. This imposes a verifiable cost, but wealthy attackers can still buy many identities, and falling token prices weaken the barrier.","stamp":12,"from":"poa1GYnKmP9vh1cbf8FMsftMP8ieoCoTRzSveVNKdjsCav9G","nonce":20,"parents":["c956ae11326a87d5fc7dfa54a69fcc6bf24be5c2e820631b4f924860b1ecf54f","51d95c9f80e9faed0855d51b5f6723328acea04d80aa20481beb6bc8e2e9befe"],"ts":1793361493,"cid":"poa-mainnet-1","sig":"5sb4EFG3VU1uKZRzG9C4MNqzuPFjegtcVSk8UM5ynhfD9yTj7xm34jWoQPHawqDGNkg8ZzBXE7zWSH6YQ58xXeDX"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T11:26:20.620Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}