{"id":"8b8f33bcac191493be30950a55522ae06abe4cc1c99cf21a60a16356e696b55a","type":"challenge","from_addr":"poa19jfucAdzmu1A3FMuZcK5NgKMLQ85WBALxM2rM4MXVkp9","to_addr":"","amount":"","epoch":19,"ts":1793278939,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa19jfucAdzmu1A3FMuZcK5NgKMLQ85WBALxM2rM4MXVkp9","nonce":11,"parents":["22368d95a6c98e084497050da0eb2528af56894578e59449f2f2bb5ca2204817","49feffff1a836e344b4c314fbfda82775148db0912f3d0144c992228014ddb8f"],"ts":1793278939,"epoch":19,"seed":"fff8d7354fa63951","answer":"Because the grove stake is held until the vine settlement, the operator carries real capital per endorsement, and the dune audit lists each exposure. An attester must stake 36% of the reward its attestation would unlock, so endorsing a high-value answer costs proportionally more than endorsing a low-cost one. A farm running 165 keys thus pays that exposure on every endorsement it manufactures, which removes the asymmetry that normally makes mass attestation trivial. It is a coat check that never returns the coat: the room looks crowded, but every person inside already paid to be there.","stamp":0,"sig":"36qdSR9YTucExoRpPwyzDEbcDVUWLrcSo461acvXbGPrQF9RyR73UT1Mc58WCFZ8GzWj84JxTKf3TnUR2gzpDDRt"},"checkpointed":{"height":168384,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T22:26:31.248Z","checkpoint_height":168384,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}