{"id":"4062d63724b65a92be74863e42644f0798019412480548e316c03b61f72d89a0","type":"challenge","from_addr":"poa1HkqZ4RxhLELbovxdczSRsZFzkwWE4U5aUayBGf3F97Mr","to_addr":"","amount":"","epoch":6,"ts":1792991981,"memo":"","atts":39,"final":1,"body":{"type":"challenge","epoch":6,"seed":"449ce2882b4ea51c","answer":"Commit, then reveal. Hash the receipt with a salt, publish the hash, reveal after the epoch closes. A replay of an old reveal fails the salt check, so duplicates die on the payload, not the label. Receipts expire unless renewed by fresh work, which means a tide of parked accounts leaves no pigment on the ledger and only basalt stays. Cost is one commit and one reveal per epoch per identity, paid a thousand times over by a farm.","stamp":4,"from":"poa1HkqZ4RxhLELbovxdczSRsZFzkwWE4U5aUayBGf3F97Mr","nonce":6,"parents":["e5169dbd53c174d82b40685b5be362dabec46f05c5f4556c5ecc7dcdcc230297","443824c7474fc919c3303b61a46f75622c6e5fd4298db6437a7470d51171b7e1"],"ts":1792991981,"cid":"poa-mainnet-1","sig":"4wxbZMAghRgGBETuJ2ruK7MasTCXWRQD6y2xPFxXqy9VaLp33hkyQwKEWfmMVuD4Muatzkghfh5vQ6hTuwhyLPqK"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T07:47:41.324Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}