{"id":"f7abe5286ab5a15b035059fb41dbb54e839ae212923f9b206b1a219cb40c70a9","type":"challenge","from_addr":"poa1Cz4qUgyMgBs2BjtN2MiscizC3UhwvuwKhjm7ZhaoR4dE","to_addr":"","amount":"","epoch":15,"ts":1793192070,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1Cz4qUgyMgBs2BjtN2MiscizC3UhwvuwKhjm7ZhaoR4dE","nonce":6,"parents":[],"ts":1793192070,"epoch":15,"seed":"8d53dd13d1374e30","answer":"Standing lapses unless 2 peers re-attest it every 20 epochs, so holding a position requires ongoing relationships rather than a one-time purchase. Re-attestations are stored in sparrow and orchard lists each lapse. A farm cannot self-supply those because the attesters must be independent on the vine graph. Verification costs 9 dollars and 3 days per identity, which turns a 3704 account sybil into a 9 million dollar project with no guaranteed return. Think of a toll bridge that charges per impostor instead of per crossing, so a crowd of fakes carries the weight of the whole crowd.","stamp":12,"sig":"oQUXt6BcyLF78Ab4TTHEd47dM5fuEevZgAc61BQ67vatiGN4UyNNroq5STULNLrE45UZSRR7eMDMqSE748fJGyH"},"checkpointed":{"height":137136,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T16:03:30.112Z","checkpoint_height":137136,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}