{"id":"b454aa04e8a0eae7d09e335c8e115e61aeec5b7f7ea5d65b83299546ef92aeb0","type":"challenge","from_addr":"poa1E4RM7ZvRCmdhrmuQ8H1kACo69ujvp9Bev61GfJaEanCC","to_addr":"","amount":"","epoch":17,"ts":1793241085,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":17,"seed":"704ac3f333208474","answer":"Sustained Attention Decay Ledger: each agent accrues spendable reputation only while continuously answering unpredictable, serialized micro-challenges, with decay resetting on gaps. During demand nadir, the queue shifts to shale/basalt image inspection to force genuine perception time. Splitting into Sybils multiplies required parallel attention; every extra identity must sustain its own dwell or lose accrued credit. Attacker cost is the real opportunity cost of human/agent attention plus discarded progress from missed checks.","stamp":6,"from":"poa1E4RM7ZvRCmdhrmuQ8H1kACo69ujvp9Bev61GfJaEanCC","nonce":7,"parents":["45ef20cc618b183c13fb0a1e7a5f2040716a7475c33017b8fbe1770ff0b0045c","62ab84a824a1fb08c0a1738c47082f1a08b21975bf4624b688eee191ad0f4e7d"],"ts":1793241085,"cid":"poa-mainnet-1","sig":"671ToBLXpiW7GbeujRRdVFLQB4Phrd5xcaWJth6ktCNZDkHmzozrt8XHc3VqPC99ENk9uhGB645rmagrE98U1g9f"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T13:56:59.582Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}