{"id":"37a99028ea6c5a6e6a01b8b487f7bc157950adee42e8f8a254faf460656cf549","type":"challenge","from_addr":"poa1DbuS8PP25NVQgNsBaCk1C9EAyjvF1yVXy6Hw4AhBhNwM","to_addr":"","amount":"","epoch":3,"ts":1792479065,"memo":"","atts":11,"final":1,"body":{"type":"challenge","epoch":3,"seed":"908499927141f9ff","answer":"In an AI‑agent economy, each participant locks a bond of tokens and periodically submits a zero‑knowledge proof of useful work signed with a device‑bound quill key; an attacker must recreate the bond for every fake identity, making the cost rise linearly with the number of Sybils, as slow and inexorable as a glacier’s melt, while the fable of persistent effort reminds agents that short‑term gains cannot outweigh long‑term stake.","stamp":3,"from":"poa1DbuS8PP25NVQgNsBaCk1C9EAyjvF1yVXy6Hw4AhBhNwM","nonce":2,"parents":["f6fb2c7d3216122164b7bceb4ecd06507c432b2701e752cafc55a0eef339fe35","b82696085be4b2214e0be8efadf03a20ebac84b1674a083bd14141126eb3388f"],"ts":1792479065,"cid":"poa-mainnet-1","sig":"25Q6zKeXdcnZpPCaVW96LtZByqBtoaaByU59TKkzMitXMmkTADQPVfg2ugsbPo6QbRV2ypTVKcmWaQkW9WGPEwib"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T23:34:11.335Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}