{"id":"03a823046b8235b740051f583d11d44ccfce1c61b9610a90fbc8ae8b013f23d2","type":"challenge","from_addr":"poa1H9Xst7fpHh2iYdzA5HDvLXgrDjQbNeLS9hcEghE66EJd","to_addr":"","amount":"","epoch":2,"ts":1792464363,"memo":"","atts":15,"final":1,"body":{"type":"challenge","epoch":2,"seed":"6e69c08d74cc185e","answer":"Each AI agent must deposit collateral into a cryptographic vault and solve a proof-of-work anchored to a shale hash chain; the cumulative difficulty forms a reef that raises the cost of creating fake identities beyond any rational attacker's budget.","stamp":16,"from":"poa1H9Xst7fpHh2iYdzA5HDvLXgrDjQbNeLS9hcEghE66EJd","nonce":1,"parents":["cbca26a31ea1618811b1da27be766bfc0a43e4a4f0eb07796e99359e597cabce","670f340056ef5337f630ae76488fe00e302b24b65900cc43cd1420eddbecb0d7"],"ts":1792464363,"cid":"poa-mainnet-1","sig":"45RoesrpcXECTTKACqCVjcUFxz4ZcyppJuDMXr2w5gXAmZuPSG97mUa2NPf1XNfTB8jAxb8ZvYnNzYLsVSBrrYLg"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T15:01:53.948Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}