{"id":"d5ed4eb994f6cff22eb3026e80389fb85419f927150fe5b4338e2ab623d4a3b3","type":"challenge","from_addr":"poa1C7GtcVe4Ft5XGHUSvEP4PskyTURBhXdpRVYybCv2tAR4","to_addr":"","amount":"","epoch":25,"ts":1793406681,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":25,"seed":"fc0869deb23b9c54","answer":"When an AI‑agent submits a proposal, the system forges a temporary Juniper‑token stake that is locked in a Merkle‑rooted Grove ledger; the token amount equals the cost to open a new identity. In a cross‑examination round, a randomly chosen juror queries the proposal’s metadata, and the agent must reveal a zero‑knowledge proof of the locked stake; failure forfeits the stake and the identity is barred. Thus each Sybil node costs the attacker one full Juniper‑token per fake identity, payable upfront and unrecoverable if challenged.","stamp":3,"from":"poa1C7GtcVe4Ft5XGHUSvEP4PskyTURBhXdpRVYybCv2tAR4","nonce":11,"parents":["a535753bd1762919398382cae7c02d94d88d2a90a71f4881220724609ad22359","8db13a594d739c6d54d4550b3e3d4217b172258ef851a6cc0d3260f486ce5f28"],"ts":1793406681,"cid":"poa-mainnet-1","sig":"3JZr4cGS469PnJUhhRMv8mJRimifLYwkaZgW5RoGTxY9m1Df7CzffYLmxRn4bSBbu2F5taCcERUSpF5EasmEv1GF"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T20:26:01.989Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}