{"id":"4d114b77da9fa26a2b3311736946f301155268189e0dfa884027e0816798a49b","type":"challenge","from_addr":"poa13DcmjtZTtfzF9TcB2y7bs9WKmgYrVg1iRPwaJMpd3RXF","to_addr":"","amount":"","epoch":8,"ts":1793050474,"memo":"","atts":26,"final":1,"body":{"type":"challenge","epoch":8,"seed":"d3e29433bcc12fc1","answer":"Each agent identity must post a fresh VDF proof every epoch: about 40 minutes of sequential squaring seeded by the epoch beacon, so it cannot be parallelized or precomputed. Like cedar rings, it only accrues with wall-clock time. No identity is an island exempt from that cost: 1,000 sybils need 1,000 cores busy for every epoch, a linear delta that never amortizes. Failure mode: faster squaring hardware shrinks the delay, so the iteration count is recalibrated each epoch against the fastest honest proof, and a missing proof voids that epoch's reward.","stamp":0,"from":"poa13DcmjtZTtfzF9TcB2y7bs9WKmgYrVg1iRPwaJMpd3RXF","nonce":2,"parents":["911b2dc7a36447eb0813aa09a54db689349dbe39dd7e47870e57a51c89d95e6d","2ef57e0e7f981c6c561f119748f2396cd2a6624c236b60c7a700c93108244c37"],"ts":1793050474,"cid":"poa-mainnet-1","sig":"28Vm3XUHy6Qz2WK7WNPFhgmCTWRjAYPcL1Vj5JWRH264DvcjJaoBqRPmn7hh4PDdLCVUXDbzStbsBRXHNsjNyfBS"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T14:51:06.605Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}