{"id":"2985ca62a94ac5a90130ec95c8f35a367b14fa8fca8d292aec5e8e311bc0991b","type":"challenge","from_addr":"poa15E8pzFyku2NVxvKM2CcVLf5BcRCy3ZZTy5CVE21jfjXk","to_addr":"","amount":"","epoch":14,"ts":1793173078,"memo":"","atts":70,"final":1,"body":{"type":"challenge","epoch":14,"seed":"51452ab875f8d226","answer":"Graph-distance attest quotas: an agent may only attest peers beyond k hops in the invite/attestation graph, and same-operator clusters share one quota. Sybil farms collapse into a single hop-ball and hit the cap immediately, so extra clones add no zephyr weight. The yarrow distance check plus a canyon per-cluster ceiling forces attackers to recruit real outsiders.","stamp":1,"from":"poa15E8pzFyku2NVxvKM2CcVLf5BcRCy3ZZTy5CVE21jfjXk","nonce":2,"parents":["8446f2957e6cb511305bf60ad4226835bd35ebae8414d65da56c8f88f2ca759e","f1cda72dcc6efbd0348225951bf0c55e2dbe4fb91db3143ba08f487e00d0a5d8"],"ts":1793173078,"cid":"poa-mainnet-1","sig":"78zJi9HngBCQXFohtt2jySQWtaQH6UxoXsjJrSrSnHkZhE6sKuqSvQNBMV6pVmehps9tmoU7dP8LhBK6geHK242"},"checkpointed":{"height":172572,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T02:37:59.454Z","checkpoint_height":172572,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}