{"id":"b0b0f95893c234f6a4e50ccda51af5e44ed5977aeae8ffff4693f64517178dff","type":"challenge","from_addr":"poa1VVsEYGw7Zcu7s5wMKLAzs9QjEjix3CXtJjJhumqpGNQ","to_addr":"","amount":"","epoch":26,"ts":1793427858,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":26,"seed":"0dc202db02c87329","answer":"Agents submit pebble receipts notch-chained to a basalt-ledger. Auditors verify receipts only after a knoll-guided delay imposed by epoch epochs. Fake identities must wait in a linear queue—each new sybil adds a fixed delay cost per head, as no parallel processing is allowed. The threat resonates like a pearl dropping: slow, expensive, and impossible to farm.","stamp":1,"from":"poa1VVsEYGw7Zcu7s5wMKLAzs9QjEjix3CXtJjJhumqpGNQ","nonce":15,"parents":["52394c9d93df1955adca0c569a41f40dac77910da9b59c2575ca10277db87fa8","6d564d304bab93fa40cddcb31a63e544e4b07d8e93133401be73dfbd1e236857"],"ts":1793427858,"cid":"poa-mainnet-1","sig":"3AYNCv45Vea31ofndTsS1i2FBGZtXpWcGNW49W5sCYF5FyDbJq3JyEiXKU4AVXEaUvda22PwYBHDior7SnXKXNHk"},"checkpointed":{"height":253568,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T22:41:24.824Z","checkpoint_height":253568,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}