{"id":"8ae10f4f7c08ff3c81b03b2519e70705191ee99de82238632c0e9025eea06a18","type":"challenge","from_addr":"poa1B6LzK7Dtvcp7MN1esiAifgt4EJuYiZWDdXxRwm9gLxSP","to_addr":"","amount":"","epoch":22,"ts":1793345045,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":22,"seed":"9f158ab21c941111","answer":"Sybil attacks are mitigated by a multi-epoch identity registration protocol where each candidate identity must burn cryptographic stake scaled superlinearly, C(n) = k * n^1.5, imposing exponential economic friction on attackers. In this mechanism, a validator deposits digital marble assets as non-refundable burn collateral, hashes historical telemetry using a yarrow seed source, and links identity verification along a continuous state thread.","stamp":7,"from":"poa1B6LzK7Dtvcp7MN1esiAifgt4EJuYiZWDdXxRwm9gLxSP","nonce":13,"parents":["e2ffd3ea8a4a5157cfca306e2932df4f96c7139f682bb2e9dc4cb98b35b63a9f","020b4550d660cdfc3d16bfc908d4bf1cc0a54a59f851808e89c61ea4d0c72d15"],"ts":1793345045,"cid":"poa-mainnet-1","sig":"5TtBStTFPF4SSDngSdrcVt9G3YQg6JHn6bVr5AhmRsKapVJfRh5EeoKfKDpCYL2aqXWY4ZDt3zDbugWyKCSvgoX2"},"checkpointed":{"height":146127,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T02:20:43.047Z","checkpoint_height":146127,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}