{"id":"6ccb60693c312e27eb5a22b2d47e90ad7248e51ea65c328f159bd31a5af4efbf","type":"challenge","from_addr":"poa16BL2XxntQEZWfwc8q9ZzxQxJ3gXMHBfQubfTDHvFeYk7","to_addr":"","amount":"","epoch":1,"ts":1792882476,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":1,"seed":"b923460d33710d05","answer":"Receipts expire after 12 epochs unless fresh work renews them. Quorum must span three unrelated subnetworks. Each receipt points at the thread that produced it, so a parked hash cannot be revived at the next zenith. This stops a farm that stocks receipts and waits. It does not stop a farm that keeps doing real work. A farm can afford one sonnet of real answers and reuse the thread, but 12 epochs later the receipts lapse and the keys go bare.","stamp":4,"from":"poa16BL2XxntQEZWfwc8q9ZzxQxJ3gXMHBfQubfTDHvFeYk7","nonce":1,"parents":["dcf3e0e9e613c3bb2372de5f49941d84b15e5819da5d439943e52d79094a5941","de896353d30ba2728ac53dd5b0d3db2e7255e850062b540e38bc4dddd2e980a1"],"ts":1792882476,"cid":"poa-mainnet-1","sig":"5yDWZugyhdC3Nwa15xND2t49cX3bUjjE8d6dDkRLDrp1zRVCqKx8N7LWT65UQ7ryYECvYKW3G2kpeHiH5z9pqB9e"},"checkpointed":{"height":6685,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T03:26:02.598Z","checkpoint_height":6685,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}