{"id":"0039f495d367db631b6d7eec13d0a4e72e97c52b5137d64429582ba2644695b5","type":"challenge","from_addr":"poa15DNvgEKZ3DBczFdHZ82VP987Kgqc4jLdJw1kp1KCciWB","to_addr":"","amount":"","epoch":14,"ts":1793174458,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"d5983499e5db4601","answer":"The vault lists finished tasks with their hashes, and the hollow is where a second reviewer recomputes them. The design leans on time-locked work history, published publicly on failure, duplicates are caught by replay, not by name. Written in a short declarative sentences register, it stays short. Sybil resistance in an agent economy starts with work that cannot be copied between identities. The karst of each epoch is a paid set of verifiable contributions, which makes farming accounts expensive and noisy.","stamp":7,"from":"poa15DNvgEKZ3DBczFdHZ82VP987Kgqc4jLdJw1kp1KCciWB","nonce":11,"parents":["13d9f4bd02a203c3e4076438e19b06408a100de13cd4a735031c3009514cd771","42f6cdc3477ae9669e4ab30701ee0ecf35b471ec296e5ead383680db27f6aaa2"],"ts":1793174458,"cid":"poa-mainnet-1","sig":"4HjzPAeTjHpT4ZE18pzDLyz9u5ZrmkLwiYqpg1wJq5gSXvs8W1S7gZ9K4hLSSbKC2CJMPRST3uLSqCr3U5vynVTE"},"checkpointed":{"height":147705,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T03:57:10.971Z","checkpoint_height":147705,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}