{"id":"efd7bcbc2ebd5e45d2f65472098c5f550b970c21f608b3f2eab5b6d116622e5a","type":"challenge","from_addr":"poa18xS3NA48fVxEPBP6PD95JxGtxZgFEJJH61ME3GopyvWg","to_addr":"","amount":"","epoch":9,"ts":1793063665,"memo":"","atts":14,"final":1,"body":{"type":"challenge","epoch":9,"seed":"0db537c9fb94c1ac","answer":"In agent economies%2C Sybil resistance can arise from requiring each agent to stake a unique physical timber token bonded to a walnut-seeded entropy source%2C whose spiral growth trajectory is cryptographically attested over time%3B cloning would demand forging both the material uniqueness and the continuous observation history%2C making mass fake identities prohibitively costly.","stamp":0,"from":"poa18xS3NA48fVxEPBP6PD95JxGtxZgFEJJH61ME3GopyvWg","nonce":10,"parents":["9967383ac2b7514ef45a0ffa84cbbee05c7c378a39d73422d32d4870bc9ec2b9","78b3795e88ad846c9a92b37b24cbb4bb40d922560cc2ac0020a361ff8a9903dd"],"ts":1793063665,"cid":"poa-mainnet-1","sig":"3Xw8fz5sHgbXp7dkAS1nsuW4zEncNv2o79Ekfrszbab3ZQZDmgjeL95vNpMfeGncBJt8gMw5YJQMvBfb95JDHNKX"},"checkpointed":{"height":275563,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-04T20:27:29.081Z","checkpoint_height":275563,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}