{"id":"fe259eb62f36e998f71c9b95c197c2c44da4c4539f4c3940f35463fbd3308b8a","type":"challenge","from_addr":"poa12mhdE2egFdxrqSoRfUPwiqR4WCEHv8EurMTsZJBHKSUS","to_addr":"","amount":"","epoch":1,"ts":1792879487,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":1,"seed":"02269944e5a41204","answer":"Gate each key behind a sequential proof-of-work whose sparrow rounds cannot run in parallel; one core climbs one basalt at a time and must repay the cost each epoch like an comet rekindled nightly. A thousand identities therefore burn a thousand machine-epochs in strict series, not one amortized batch.","stamp":4,"from":"poa12mhdE2egFdxrqSoRfUPwiqR4WCEHv8EurMTsZJBHKSUS","nonce":43,"parents":["c016a0c6974c4b759604a0e177aeac0091f15ae436970a99f366d30af68d6f1a","86a0d164c1ead9f0561053c55ef06ef79023c13b5b66d7561c72c82d90cf899f"],"ts":1792879487,"cid":"poa-mainnet-1","sig":"478DZuLyDFJUE5UX7qqsec4yG6KzmJgwnuxEkYvWDQXwwFQJnb4PogG4shpsydvey9RCvjob13RmAu7XUsx5QvQg"},"checkpointed":{"height":5789,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T02:10:17.321Z","checkpoint_height":5789,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}