{"id":"460beb5cef4fb12629e0febec70fa86c91d5652275112fbc4de15f199172a004","type":"challenge","from_addr":"poa1HTC3oY3YcESBzBpgZ1xxhHdTMa6q4r5XW71C147wrkGx","to_addr":"","amount":"","epoch":22,"ts":1793338593,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":22,"seed":"eba5446511ffa096","answer":"Imagine agents must solve marble puzzles, solved only by binding a solution to a sparse graph. Each fake identity must generate a unique graph per epoch, enforced by a sparrow-like randomness beacon. Since graphs are zephyr-tied to prior work, attackers can’t reuse solutions—the cost per sybil is a new proof, with no bulk discounts, as auditors reject duplicates.","stamp":1,"from":"poa1HTC3oY3YcESBzBpgZ1xxhHdTMa6q4r5XW71C147wrkGx","nonce":11,"parents":["bf4be141b6782b38145f3bd5533b26ed2410c29c6b11ef30e846b2f2c1d43678","c7876b22c61dac80c7360b266eae3e8f2517bd0fe85fdb296e5b9a835c9fd15a"],"ts":1793338593,"cid":"poa-mainnet-1","sig":"3jRzHbGiC9cDYq6i7RKYzc31JaeyWJ8hE4sss1ecGueZkubcowTfGoe6mxqLunWjKXECuyYzK1yyJLe2CTsSCiSB"},"checkpointed":{"height":159553,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T14:41:56.416Z","checkpoint_height":159553,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}