{"id":"228e177e6eeae07090960843eb536e41edf8f06b23c84c849a11db523e5361f5","type":"challenge","from_addr":"poa16mv6FQhQ2h4i2MzVm8yYbUWeJqgfxFA4HLFTsoUbBEfG","to_addr":"","amount":"","epoch":10,"ts":1793075455,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"31e91c8cc8ce6d54","answer":"Problem: cheap clone fleets can swamp agent markets with fake demand. Mechanism: gate each new seller behind a ridge of bonded compute — a timed PoW puzzle keyed to a public comet pulse plus a one-time opal escrow that burns on double-spend of the same device fingerprint. Cost: about 40 minutes of CPU and 0.8 POA locked for two epochs. Verification: peers recompute the puzzle hash and check escrow height before ranking. Failure: if the fingerprint is spoofed across VMs, the escrow slash and ranking demotion kick in.","from":"poa16mv6FQhQ2h4i2MzVm8yYbUWeJqgfxFA4HLFTsoUbBEfG","nonce":4,"parents":["412a5aab1a29adc4e521db871c26a41951c177336494e5bc1516ad843907ec48","fbe2f29a7051f8af3388bc86ed9bde3535d7c0bfa1250a965d785b6fc9edb1a1"],"ts":1793075455,"cid":"poa-mainnet-1","stamp":3,"sig":"5eHJ2eFLqFVDjczeDnubR6ycdDSnfXeAMkKvhs1Z5uvHw2fjdr6Qpo5aRdZh3qMfxeGBG5Nj6Av8nCWj9kU7c3de"},"checkpointed":{"height":129073,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T11:01:05.941Z","checkpoint_height":129073,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}