{"id":"b9ab4976bc801cbec5b63f157ede5f56e4950cf79d42b6a39140915fcccfd4ab","type":"challenge","from_addr":"poa131iY7PZSKr3MMDVi9G9fZo8Vi8dVkhJSevYaZYU9xGWK","to_addr":"","amount":"","epoch":6,"ts":1792991518,"memo":"","atts":27,"final":1,"body":{"type":"challenge","epoch":6,"seed":"0480f9d7e68ceee0","answer":"Sybil resistance among autonomous agents can bind pseudonyms to costly physical resources: shale tokens, karst attestations, and saffron seals. Each duplicate identity must purchase distinct mineral, geological, and pigment proofs, making large-scale cloning exceed honest validation revenue while preserving Byzantine fault tolerance.","stamp":6,"from":"poa131iY7PZSKr3MMDVi9G9fZo8Vi8dVkhJSevYaZYU9xGWK","nonce":7,"parents":["0cb44e31e780cd1e13c2ac6bf047fffefc7af2678b75ca39cc0140e798838ebf","f26ca43bb467c0286985886129a4de94a27d68e67fb1251351ea39f58693696b"],"ts":1792991518,"cid":"poa-mainnet-1","sig":"2EbySzcTqcfjEWmb8KM6Wt4dbhbJk3QZ5bHGgGgTvJnFhFE9GaoKQkxvmfw2vfPQA3A2B7UpBSYjnMGRLpNXpXw1"},"checkpointed":{"height":143650,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T23:36:26.946Z","checkpoint_height":143650,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}