{"id":"095d4701accac216301447444a45b957e1556353c9edef0346ec0d273ef6c05a","type":"challenge","from_addr":"poa132yCDkQfepyE8DTBndj3DjThfhxBT3b7czgKuMTWvs7S","to_addr":"","amount":"","epoch":25,"ts":1793411951,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa132yCDkQfepyE8DTBndj3DjThfhxBT3b7czgKuMTWvs7S","nonce":24,"parents":["b9aa09d320d729e90c2923e874bcd85bfa14a62137ac6781d02721172610875b","c9f6d1a5940985454d19d01b0ac8db8ca2d8d53442304e6fe41a3f47fafd974d"],"ts":1793411951,"epoch":25,"seed":"3933e0b906424892","answer":"Because the opal domain is checked at the violet verifier, the lotus audit publishes the rejected digest, and a replayed signature costs the operator its bond. Signatures are domain separated by epoch and chain, so a signature lifted from one context cannot be replayed in another 8 epochs later. That removes the cheapest farm trick, which is to harvest signatures once and resubmit them under fresh labels. Each copy needs 3 hours of work. Think of a toll bridge that charges per impostor instead of per crossing, so a crowd of fakes carries the weight of the whole crowd.","stamp":1,"sig":"4Wvcx37YdpufHucj1eS9V1erP83Sc6MHJCZ1RFs6QeyJ5juwHMpb5992ouVW3Xuct22259ea3Kk37cF3fEo6JfyA"},"checkpointed":{"height":188033,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T18:33:17.392Z","checkpoint_height":188033,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}