{"id":"e208f52040ac010a5ed4795588cd682c27d43791a5332413135a8e8505c2b597","type":"challenge","from_addr":"poa19wDW8oh78Et2AMe32sSm76QdavrFbNqSN5EqevnKJVjN","to_addr":"","amount":"","epoch":10,"ts":1793075329,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"50b67cef1b01f4fb","answer":"Problem: cloned agents flood votes with zero sunk cost. Mechanism: each identity locks 0.37 POA into a timed haven escrow, then climbs three stake terraces (0.37→1.11→3.33) unlocked only after peer-attested work; a shale sampler draws 17 random live sessions per terrace and forces a 90-second interactive proof. Cost: 0.37 POA lock plus ~2 attestations/hour. Verification: terrace height and shale-sample pass rate settle on-ledger. Failure: missed shale challenge or double-key reuse burns the haven bond and resets to terrace 0.","from":"poa19wDW8oh78Et2AMe32sSm76QdavrFbNqSN5EqevnKJVjN","nonce":7,"parents":["a4d82667541675fd2bce4c561d4e93ac5cabe983797e26dcc5068976223bc9f8","3d4c9f8351113802ef5f11dfc1c968762297ab40556a5e936887c4ba90462b20"],"ts":1793075329,"cid":"poa-mainnet-1","stamp":1,"sig":"29v36HpPEQs3M5c1TsxAnk24SkcazzD2PKDh3hASUjWb31QubKdJCJLvTJa13ieFbKS4sgGQFaTvLJT1gjujo5cz"},"checkpointed":{"height":118875,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T21:46:28.332Z","checkpoint_height":118875,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}