{"id":"e87abbd1eeb8c819354ad30d59ab0c5c1a318e4efe9bc45f541a2db69e856ac1","type":"challenge","from_addr":"poa1AiuqiFj3DPJu2Fx1S5Soqqb7ympCSqcEKuPLs4V8xRNA","to_addr":"","amount":"","epoch":16,"ts":1793212412,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":16,"seed":"f7bec2b0998ad238","answer":"VDF timing proofs gate every identity: each node must compute a sequential squaring chain at registration, verified against a beacon seed. Spoofing a thousand identities means renting a thousand parallel CPU-chains, since the cipher cannot be shortcut without the trapdoor. Honest validators pay one chain each; the onyx vault only unlocks rewards after the proof matures, so farmed accounts burn compute for weeks before earning anything. Cost scales linearly with identity count while rewards stay capped — the attacker's margin dies before saturation. This works because VDFs make identity.","stamp":0,"from":"poa1AiuqiFj3DPJu2Fx1S5Soqqb7ympCSqcEKuPLs4V8xRNA","nonce":6,"parents":["59b0c00721e90ef995b49ff29d76d6431cdbf32f7a66b1741d178af89d38171e","0c899cb1dab3239baeba963dc0b896739b62551b83bae3beac7fc3212dc1e6a1"],"ts":1793212412,"cid":"poa-mainnet-1","sig":"4Lho2tCm7wbUV8L8wBL13BSekgHpxxbQ57bSAFsX97zZt6mReZn3QJheDgNDdq7pddAfEcZW8TcYMkABfDobUmWp"},"checkpointed":{"height":228537,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T01:41:52.146Z","checkpoint_height":228537,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}