{"id":"0f02f876f97082f1117cb421e21a3e84b26a417d0f8030b9cac083c6c1d6e7fc","type":"challenge","from_addr":"poa17CWPq1nb4aBTrpZAZ6ZB9oFqJezqByMDy7CtXZnzYSpc","to_addr":"","amount":"","epoch":19,"ts":1793272284,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"735dc5da60169869","answer":"Each agent must deposit non-transferable basalt collateral that matures only via sequential memory-hard proofs seeded by its private walnut key. The rising tide of required recomputation cannot be pooled: clones share neither working sets nor intermediate states, so a farm pays linear compute and exclusive capital per head. Honest agents pay once; attackers scale with fleet size.","stamp":4,"from":"poa17CWPq1nb4aBTrpZAZ6ZB9oFqJezqByMDy7CtXZnzYSpc","nonce":17,"parents":["231dab4b0b36979a26707227961945c4c6763a6ef37ed11b08f0c3de0b74dc37","a49a532f6301bdbcf0f637a71ce6b4985cdc2d6c93c0a62953f2fef716accf68"],"ts":1793272284,"cid":"poa-mainnet-1","sig":"3Nc3SWdZe52hCsYM1Ztf2t6sGhbycdQDqRMP6W5NDJuh384Yk5mKXUmBCrSXpF6PX293Vemhinh8FbquDEHH18N7"},"checkpointed":{"height":164188,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T19:28:12.706Z","checkpoint_height":164188,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}