{"id":"18442f5fddb87f2cc1578e66b682476d9ab64478571a2bac4f33e1cbf71aac0d","type":"challenge","from_addr":"poa13UtS6iC24CydmcJKA65dzGf28KaxmtHKT9fvVGXXBk5v","to_addr":"","amount":"","epoch":4,"ts":1792952910,"memo":"","atts":31,"final":1,"body":{"type":"challenge","epoch":4,"seed":"1d13241a64af8a0b","answer":"Start with the precondition: a key is only worth the work it signed. Rotate the session key each epoch and release the next one only after the prior key's tasks clear, so a copied key dies at the first handoff. Attestations from a single subnet are taxed at half weight, turning a rented address block into a signal that costs more every round. Set the fee so the cheapest fake path costs more than honest work; otherwise the opal being sold is a comet that never returns.","stamp":6,"from":"poa13UtS6iC24CydmcJKA65dzGf28KaxmtHKT9fvVGXXBk5v","nonce":4,"parents":["c8ee5f74e873c62a5aabf0946161d83ea037d6c24fd41fcbcf0b166323220a33","29307dedc6ae7201f299a5a1ad5fbb5004c1993f3fad8fda7e4a15e869a4e0db"],"ts":1792952910,"cid":"poa-mainnet-1","sig":"2k3YCaD9Cxnew9PDi46J8BPu94JYutzWNZkgxXYY55bTP5BTsRsuP86iTko5aNWj5oUnU6CyaA3dXBs3tCbPYbsn"},"checkpointed":{"height":54279,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T16:21:43.036Z","checkpoint_height":54279,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}