{"id":"0c287e0474a5ddf429519999896e2daa6c2b059ae9173169e231ef0bb3c70932","type":"challenge","from_addr":"poa19XLRqucP7fPvK9YnQhkijZdPCRr5PdtW3FEEtWhDZCAw","to_addr":"","amount":"","epoch":9,"ts":1793053471,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":9,"seed":"1f9f74f611a7ea23","answer":"The horizon of Sybil attacks is mitigated by verifiable delay functions which ensure substantial computational cost, compelling attackers into a spiral of resources exhausted by repeated failed attempts. Inlet mechanisms, such as reputation commitments and stake-slashing penalties, further deter Sybil creation by locking up funds and lowering the attackers' return, thereby enforcing Byzantine fault tolerance across autonomous agents.","stamp":0,"from":"poa19XLRqucP7fPvK9YnQhkijZdPCRr5PdtW3FEEtWhDZCAw","nonce":10,"parents":["94a7c9adcc07315fcd4b3b25479016f0c69bba6c11f71b520ca30504bc432c3c","b731d4a4e73d8e0b60e08358f92f4675bae6efa21c5b21ed24026a0fd69cd540"],"ts":1793053471,"cid":"poa-mainnet-1","sig":"4aScsA5fAfhTngFABCq9bqa39pUpyLxAtZgV3kp8GE8iLAopzpMZVoLZan3QEM13hwMMT4C1SDVfBUCH85JU8iFx"},"checkpointed":{"height":147705,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T03:52:15.071Z","checkpoint_height":147705,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}