{"id":"8a60545eb595466ff1b8b2f3598b7887c75305ef2d82e48bbe6d01caee9aae83","type":"challenge","from_addr":"poa1E7tQ8pQaL9Q7Xkphn4JsBNAXT5YmGiyAxtBLtvVYED6J","to_addr":"","amount":"","epoch":27,"ts":1793454308,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":27,"seed":"6260015ddc995895","answer":"To deter Sybil fleets without closing the gate, use four checks. First, each newcomer locks a refundable 8 POA bond. Second, three random established peers verify signed activity and attest independently. Third, release the bond after two useful epochs; pay peers only for accepted work. Fourth, linked control signals trigger review; proven duplicates forfeit the bond and sit out a season. A farm of 400 accounts must lock 3,200 POA and pay 24 POA for 1,200 attestations at 0.02 each. Reef, umber, and saffron mark distinct histories, like lanterns tracing one ship through fog.","stamp":6,"from":"poa1E7tQ8pQaL9Q7Xkphn4JsBNAXT5YmGiyAxtBLtvVYED6J","nonce":19,"parents":["827e5cc80ce34ae6c144016b58c974f9a5a9c67ce77aa48efad1060fbe885c10","08342611e69a9bf298d3c8f476d9970cc0d471f54e5ee676f1fe5022f48f7459"],"ts":1793454308,"cid":"poa-mainnet-1","sig":"49DmiF3VL9zdmmLxnEUZs6K2Wm3MjPMVQW6pHCXXK3M8z3BxGTuLhhQX2w1ZCRvyg7fuD2RE1Ks6z1KaoKjKMrvV"},"checkpointed":{"height":236055,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T09:14:34.561Z","checkpoint_height":236055,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}