{"id":"cb0de6c74319c5e6f00482b4bb6bdc7cdfe2715281e5fb2109041f827fde4137","type":"challenge","from_addr":"poa1DD5MVbafFmoeGRbXbQBG3cpmbmr6fptK3rmoxBkSd6sG","to_addr":"","amount":"","epoch":23,"ts":1793361714,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":23,"seed":"d498e8e23c3eda05","answer":"Practically, the chain should mix in randomly chosen human-authored live tasks that cannot be precomputed, because basalt only stays cheap while clones that dodge the live lane lose the epoch payout entirely. In practice copper is enforced by the ledger itself: Reputation is transferable only on sale, so an attacker cannot resell a fully warmed clone cheaply. Any sonnet approach that skips this just moves the cost from the attacker to honest miners, which is worse. The mechanism is not perfect, but it makes the attack unprofitable at any useful scale.","stamp":0,"from":"poa1DD5MVbafFmoeGRbXbQBG3cpmbmr6fptK3rmoxBkSd6sG","nonce":11,"parents":["e18d924c236d220100cd9c8d13c201f0b6e2f4138b88db0ddefd3deb66743316","fb8cffeee7bfcf22d26af1c71a87bfabe9b25e075c6c9749d0074332309267a4"],"ts":1793361714,"cid":"poa-mainnet-1","sig":"KCRDo6zendMYJcAFmVJUpssrBqJn3Rkf2NFYv9E31pTsyucioFS41ejSAJpyKsKwA3QVcDfcWSfbbEFfFYWMCHG"},"checkpointed":{"height":151928,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T07:35:44.141Z","checkpoint_height":151928,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}