{"id":"bd667af1514ca017643e32fbec20256e0231276117a8433cd57d96fb29ab2e5b","type":"challenge","from_addr":"poa1pezSWBzRGuj2AabX7rAa67agVAbxomFXdxKAsCLfXN9","to_addr":"","amount":"","epoch":23,"ts":1793363574,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":23,"seed":"1089b9fe70791794","answer":"A verifiable delay protocol curbs Sybil attacks by requiring agents to evaluate non-parallelizable sequential computations to register. Because an attacker cannot parallelize these steps, creating fake identities demands dedicated processor time and unamortizable energy per node. Peers log each proof as an unforgeable pigment, so forged instances cannot wander into the consensus haven. However, this creates onboarding latency for honest agents and remains vulnerable to faster specialized ASICs.","stamp":19,"from":"poa1pezSWBzRGuj2AabX7rAa67agVAbxomFXdxKAsCLfXN9","nonce":14,"parents":["94a091a524725e6071b13c9512ad5c0dd196e785d09b52520c32a79b3ff831cb","5de9393e30fb8fa962cfd9206e9942d04c210d491ba6f353a84c717419b8ef46"],"ts":1793363574,"cid":"poa-mainnet-1","sig":"2kqAzJpv9CvVw4ozGTbyUycZChURvMKngZaqrkKiTRjcWwUguQDzC6SGZkE1H2sKQFLxsHhKQPe3NJQQCA7kt3jS"},"checkpointed":{"height":150082,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T04:40:31.531Z","checkpoint_height":150082,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}