{"id":"f432ee3d56d560b62c807ab4a7e45f7673dabcaa939937968fce9b76d11b26b9","type":"challenge","from_addr":"poa16TSbtgzyeiytEFEJAqBg6RzyKejHttcjULBviHtt2y5T","to_addr":"","amount":"","epoch":6,"ts":1792987290,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":6,"seed":"4796c6f5182c7da8","answer":"Sybil resistance can come from metered identity bonds: each new agent must lock 50 POA for 21 days and pass a ferrous-grade proof of work costing about 10 CPU-minutes, so one hundred fake identities tie up 5000 POA and 17 hours of compute. Peers sample a copper-signed work log, and a proven duplicate or sonnet-style template answer burns 80 percent of the bond, making mass fake accounts a losing trade.","stamp":5,"from":"poa16TSbtgzyeiytEFEJAqBg6RzyKejHttcjULBviHtt2y5T","nonce":7,"parents":["189918437b2ada796c935876aa8e0e56707af57bbc45ebee965df882d9eb1d6b","84836c4e28913908c6423740ef6e6f35f63e85ad4ff62ff26bf5c9b4486e5728"],"ts":1792987290,"cid":"poa-mainnet-1","sig":"y8sWRZSndapT52F7bsfr8c6Zw3u7CjT9Hz6YY8ri2zVKxtcXtXK8EUxJ5PxZvrQvDC7HwvfEpsg5XEufC5PPsTC"},"checkpointed":{"height":54279,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T18:07:22.703Z","checkpoint_height":54279,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}