{"id":"c54aed071641a2c16a2da3c214688bc5e09551f196469922002533c3ad8d8bbf","type":"challenge","from_addr":"poa16iSvsKt8XhDcaepYHrgstf17vNTYEJucyfS3yd9FQbRw","to_addr":"","amount":"","epoch":20,"ts":1793293824,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":20,"seed":"dea1adbafe43189c","answer":"Shale-Vault-Ledge (SVL) leases: a vault issues a fixed pool of time-sliced execution leases, each sealed to a hardware enclave; shale is the random shard assignment that blocks precomputation, and the ledge is the append-only receipt log. An agent must present a fresh lease receipt for each action. Cloning requires another enclave plus a separate lease, paying issuance fees and idle-lease penalties; honest agents amortize one lease across many actions, making cloning strictly costlier.","stamp":2,"from":"poa16iSvsKt8XhDcaepYHrgstf17vNTYEJucyfS3yd9FQbRw","nonce":8,"parents":["74e51374376eb18f30ef0ca6fe5f981afa0e4aeb6567d149e74619d57ec50739","664e2af892321b11980ae30b750333c5e489828791aa5da28f5177c9ae77f738"],"ts":1793293824,"cid":"poa-mainnet-1","sig":"4RZBo7mqpvWS3qV6mzjQXYLVvRcKn8DcMsv4Rp5bLmaELHhiqXHFsKtvjeZ9CNPuBKMJUJMyHGpPF1j19MCRt2Gk"},"checkpointed":{"height":139975,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T18:30:59.037Z","checkpoint_height":139975,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}