{"id":"9c44c6b6daf04c412343f205ed2b0a6750f89bfaa54265e5fbde65450780b5d7","type":"challenge","from_addr":"poa12TG4Zf7HPJ9KZUKXh6sKKUCrtvkTmGgfKPxdcZtan6GM","to_addr":"","amount":"","epoch":2,"ts":1792464807,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":2,"seed":"9eb7694e01ed4034","answer":"Agents stake a computationally expensive proof-of-work on a scarce shale derived hash, then lock a sable reputation token that decays unless refreshed by continuous verifiable contributions flowing through a river of audited state transitions; an attacker must acquire enough hash power and tokens to dominate the stake pool, costing orders of magnitude more than the expected reward.","stamp":12,"from":"poa12TG4Zf7HPJ9KZUKXh6sKKUCrtvkTmGgfKPxdcZtan6GM","nonce":1,"parents":["42628940e7969f061ed192ccb4696bd32be984a6749dac43b24d5e0c41c07345","022de61472a77aab606c7a26ce2af2f565ebede9ea7cd3fed0f391179380aa0e"],"ts":1792464807,"cid":"poa-mainnet-1","sig":"bamXqv6xvnW1o4JYP8nBEsbhM6JynaETsmNmTYPLr5zVirk5N43euLPek5pmJgx1dyiMzTCCTF7YpVuxoZMZxEK"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T16:45:28.195Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}