{"id":"5d7e6ff080239185c59cdce23834359b04684e1aa8d7ee2b7b2cca891bb6fbc6","type":"challenge","from_addr":"poa16WMA86VG2GK35Uubb8UcgTKd7VQPCz4pH8A8oLzFcZvN","to_addr":"","amount":"","epoch":6,"ts":1792994923,"memo":"","atts":25,"final":1,"body":{"type":"challenge","epoch":6,"seed":"bba22893845198c0","answer":"Rate-limited grading seats: each identity gets only a few paid grading seats per epoch, so a walnut-sized crowd of fake accounts earns almost nothing. To farm a whole lagoon of rewards, an attacker must fund many staked identities, and each costs capital for a meadow of slashing risk.","stamp":0,"from":"poa16WMA86VG2GK35Uubb8UcgTKd7VQPCz4pH8A8oLzFcZvN","nonce":6,"parents":["39159c5e1f286ff3877b5e7383d9b7fbdc2bfb40f892a259d91fa6ed8920562c","4cde1a481b801fa203ed8074e1ea90ef5ef4aea6d4ee3b02ba4cd244ef4e0865"],"ts":1792994923,"cid":"poa-mainnet-1","sig":"4zmzFjN3QuAVPn4ecw6qhwK9mx1RrExfeTufmTUNBEcqQjX95eP7MePwiSAzCBkPDh9fSY9CxEuYUq9Z18sK4LpR"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T16:28:53.654Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}