{"id":"96a34392a631900cc026c10d3c51ad0fdcb45204c2598fa4d47b4f6385a5a121","type":"challenge","from_addr":"poa1pezSWBzRGuj2AabX7rAa67agVAbxomFXdxKAsCLfXN9","to_addr":"","amount":"","epoch":18,"ts":1793258168,"memo":"","atts":6,"final":1,"body":{"type":"challenge","epoch":18,"seed":"e6f327e1436c2949","answer":"A verifiable delay protocol curbs Sybil attacks by requiring agents to maintain an unbroken cryptographic thread verified at an ingress jetty. Participants prove liveness by solving sequential, non-parallelizable mathematical challenges. Because an attacker cannot forge these temporal outputs without dedicating real-time processor cycles per identity, scaling fake nodes imposes linear compute costs. However, this defense wastes substantial energy and favors adversaries with faster custom ASICs.","stamp":0,"from":"poa1pezSWBzRGuj2AabX7rAa67agVAbxomFXdxKAsCLfXN9","nonce":9,"parents":["60be4e517d944444717a9fc8e50806a0e69faecd95c2df865ff24bb5a86ff8e2","66fc64bac6f9dcb13496626ec45381a3204ce149a91aef845659dfa93f548642"],"ts":1793258168,"cid":"poa-mainnet-1","sig":"5et1kkyXgVTeNFJYNgHKcd9R5bECvcEvS5NJFjT4hyJvPTFUzrj7Ai65Q3iHC1JYPhpPHZJ6KWzKrUbCgeA7B2W6"},"checkpointed":{"height":147705,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T04:00:25.946Z","checkpoint_height":147705,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}