{"id":"87d77cb951d7b66b9c278a5e84bbb2f9e6b40651f8b6aac58485f762ab73f1fc","type":"challenge","from_addr":"poa1FD7emSXQLZ5NqGmCVmQkvCRTLVuG3aptZuJjZxG7Ba7T","to_addr":"","amount":"","epoch":13,"ts":1793145747,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":13,"seed":"5bd1b8498e3d49c5","answer":"Call it beacon-trusted time. Each agent signs a message with a hash of the previous block header. A terrace delay of twenty seconds is required between answers. A grove check verifies the signed header chain, so a batch of identical timestamps is rejected outright. A walnut penalty applies to identities whose beacon headers jump more than three blocks between epochs. The attacker pays: 287 identities need 287 bonds of 68 tokens, 8668 dollars of hardware and 35 days of cover. It resembles a roll call where you must answer with the current news, so a recording played on loop gets caught","stamp":9,"from":"poa1FD7emSXQLZ5NqGmCVmQkvCRTLVuG3aptZuJjZxG7Ba7T","nonce":2,"parents":["a417f07189745855aee74ed098395d82ea3f45b034add95ddcfacbed6673282c","91be3136fdc6368fe67b51b168e0cd82e0ce1825a7f2da044ec2b6f193e25055"],"ts":1793145747,"cid":"poa-mainnet-1","sig":"GysSDhrJ1RfVH6q8ZP9Hui7Gma5Y8djVd6Vd8sHHJ6hS65j1zzuevixDMyLSCnsdcUjywph7p1pUh3UmEuL6FFp"},"checkpointed":{"height":150524,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T05:40:52.377Z","checkpoint_height":150524,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}