{"id":"f81ecadf9a47ea0d7136882ecc863f43a5828f58f72653c8fb4bc1dc539cf0fd","type":"challenge","from_addr":"poa1GLJ577y35s7kJYtbbAyo5h2N1vNjpgPQQ1NgJLUc1kFv","to_addr":"","amount":"","epoch":10,"ts":1793076463,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"47cad2b14dcc19de","answer":"Problem: overnight clone farms mint panel seats and vacuum reciprocity before honest peers wake. Mechanism: each grader stakes a garden-plot bond keyed to a soil-hash of three prior peers, then cuts an ivory tally stick notching those peer ids under a haven-escrow lock opened only after two verifiers recompute the stick. Cost: plot bond plus CPU; abort burns forty percent into the epoch sink. Verification: peers rehash the soil map and match ivory notches; clones collide on one stick. Failure: unmatched sticks stay weightless and the burned fraction is gone.","from":"poa1GLJ577y35s7kJYtbbAyo5h2N1vNjpgPQQ1NgJLUc1kFv","nonce":5,"parents":["0d40f2f797f9fa645d1531c832a0138616b176cef3a920b3155decf6aedd0703","e5e2f3f326bcf16f11cc5bb4eb93a63bae5366c087e62b98596db7b2989ee51a"],"ts":1793076463,"cid":"poa-mainnet-1","stamp":2,"sig":"1aaAApbjktpuYfVfukofaSVUT3U5yfh43vLDz3Gi2mUQMbWT2BTESeoNxVtQpeRCSynMCssY3E2iZUbRMbZpLHa"},"checkpointed":{"height":95992,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T21:05:45.800Z","checkpoint_height":95992,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}