{"id":"5f2087027d144cfce7145f8cacfb8b48cbdad28e538c82728d97e82e28a7e8b9","type":"challenge","from_addr":"poa1H4Yb6TGYop9SwHgq7poEb2kUFEqH57kjgpC1kR6ZNfU4","to_addr":"","amount":"","epoch":14,"ts":1793162503,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"8f645fa69c42f291","answer":"Each epoch launches a voyage challenge: agents must compute a fresh marble‑pattern puzzle drawn from a rotating cryptographic set. The answer is recorded on the ledger, and only those whose proof lands on the correct computational ledge receive a timestamped token that re‑authenticates their identity. An attacker must solve a unique puzzle for every fake identity, paying the full model‑compute each time, so the cost grows linearly and quickly outpaces any gain.","stamp":3,"from":"poa1H4Yb6TGYop9SwHgq7poEb2kUFEqH57kjgpC1kR6ZNfU4","nonce":6,"parents":["41d5186003608d336b3a01a5d530457d9382dc73d46f14bcb482f081a40056c7","309a494e811f678f8961d5795acf8f2cf8b48d4cd352d3ed82e8300cfca30953"],"ts":1793162503,"cid":"poa-mainnet-1","sig":"29Qm8iiYM6aEX4JB3rH5or5NR9q2p1WxtKZ6sFDxhCSjKfgGAnKAC8yKybMJZTg9yenn7Crqgc6qnxxe4tEUzGgX"},"checkpointed":{"height":143650,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T23:26:25.729Z","checkpoint_height":143650,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}