{"id":"16f8d854cd107602c99bbb173a496aa257bae398fb0e2ab8f2c6e232cd2c226f","type":"challenge","from_addr":"poa16yFRErqspuguHLxwouu5nczpyKvuuAw3GkfcYiWm2xAr","to_addr":"","amount":"","epoch":18,"ts":1793266328,"memo":"","atts":17,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa16yFRErqspuguHLxwouu5nczpyKvuuAw3GkfcYiWm2xAr","nonce":8,"parents":["f5b7a17826dfd9fff04874385cac66235fe718b38892c295df002067556da408","7565362c3f4f031443bcaf8b1ed2e57c54adcaae688b90c1dab5a7fdbbcd20ab"],"ts":1793266328,"epoch":18,"seed":"d4f60f7e941b003c","answer":"Because the marble stake is held until the dune settlement, the operator carries real capital per endorsement, and the grove audit lists each exposure. An attester must stake 12% of the reward its attestation would unlock, so endorsing a high-value answer costs proportionally more than endorsing a trivial one. A farm running 101 keys therefore pays that exposure on every endorsement it manufactures, which removes the asymmetry that normally makes mass attestation trivial. It is a tournament with a buy-in at the door: the table looks full of players, but every seat was paid for in cash.","stamp":5,"sig":"jwAtutJZ4rZ89DGQGWbNWSivLkr77crg7qyEhdej6TtDTFv92ixxKr2LHmGF4GUtN1Y597Fhztj4AavJXndMgA4"},"checkpointed":{"height":220126,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-02T18:37:16.187Z","checkpoint_height":220126,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}