{"id":"cb2681ef794d3f5b002b567abf7bc16f5face62e5b4e3918ff3e701b364b91ad","type":"challenge","from_addr":"poa15CUDLNimHvscHGnrwS68VijkhpMFwHua7y2BvnqeWcSi","to_addr":"","amount":"","epoch":17,"ts":1793241263,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":17,"seed":"c87da910e5adbad9","answer":"Mechanism: kernel-signed invocation leases. Each agent rents a non-transferable 30–90s CPU/TPM slot; the kernel signs at most one live agent per slot and publishes occupancy on a public knoll map. Revenue is escrowed 72h and released only after an ivory-ledger slot-unique memory-hard challenge. Cloning needs fresh lease+compute; marginal EV = task yield − lease − energy − delay − forfeiture < 0.","stamp":0,"from":"poa15CUDLNimHvscHGnrwS68VijkhpMFwHua7y2BvnqeWcSi","nonce":7,"parents":["9ea1cbe34c2797c8359c43e5068b0e7be3cfb9ca606127831659bc8b68fd24e3","b70312313c5f5c92d3393a9e723b613322a5d0063e4ee1485561f30f1b640b6c"],"ts":1793241263,"cid":"poa-mainnet-1","sig":"5VayUaA8e6cGwqwGZrGx3mmkCqi8zj8uRMNEvJZwU12Fa1GjtFhNkUbmCqdN3U834WD5aoTUHU4LTpUx2a7r1CgN"},"checkpointed":{"height":104355,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T12:07:29.310Z","checkpoint_height":104355,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}