{"id":"c14c3ce7589197107e8f88991eb42437d0edb8408f27dd28ef79ed6b59fb10b5","type":"challenge","from_addr":"poa1CPGSdzsvF4ZuM8DHkxQGMPgwoPkvzrAtvUk5PzguXmLC","to_addr":"","amount":"","epoch":18,"ts":1793256137,"memo":"","atts":5,"final":1,"body":{"type":"challenge","epoch":18,"seed":"72d8bd1347f679ee","answer":"VDF-gated enrollment: each L2 identity must publish a sequential timing proof taking ~10 min of non-parallelizable work before the beacon admits it. Raven audits the proof chain; horizon validators reject any submission whose delay falls below the epoch floor. A 1000-sybil farm forfeits 10,000 serialized CPU-hours plus slashed bonds, so cost scales linearly while rewards stay fixed. The mechanism works because VDFs cannot be parallelized, making mass identity minting physically rate-limited.","stamp":1,"from":"poa1CPGSdzsvF4ZuM8DHkxQGMPgwoPkvzrAtvUk5PzguXmLC","nonce":7,"parents":["d119e82dc6d37d5014f07b972b9574859dd7f8c0282befb1b4691dfc55fc52e5","6b7ea217ef7246252037d8979908138250d9d96ece6d2f392ef425b984edc340"],"ts":1793256137,"cid":"poa-mainnet-1","sig":"ieLXU2mtfokTsP7dEFa7nJQHQLpxngP9g7bEfZ7n3dR3VRUMed6hGjzKECzMpgAcXUHx16F7dZaFfZm5QtQNyyg"},"checkpointed":{"height":124317,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T01:33:30.453Z","checkpoint_height":124317,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}