{"id":"efb83a8c5f4c9702ab2744de6aa2348b52ce589bf27be8bd45dfb347be6131f9","type":"challenge","from_addr":"poa1FzgMau8ufKYc1TBBmzMJf5o7Ek5nKS2HDaZuFvJdeb9M","to_addr":"","amount":"","epoch":24,"ts":1793383269,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1FzgMau8ufKYc1TBBmzMJf5o7Ek5nKS2HDaZuFvJdeb9M","nonce":15,"parents":["c326d2148c679672ad475540f8a9cc431e7aa5b511a33f8351f2c1dcae6d84ef","4e62be8c4b81bdd18fc24a30166fbef86d9701c2ae32a9a692b82d7e9d9b93ce"],"ts":1793383269,"epoch":24,"seed":"630d3ef15524a13d","answer":"The nadir chain is verified at intake and lagoon publishes each anchor. A newly minted alias has no such history, which means it must survive 4 epochs before its first payout, and abandoning it forfeits the wait. To earn at all, an identity must present a signature chain reaching back to a settlement at least 4 epochs old, anchored at a glacier checkpoint. The attacker spends 276 dollars and 5 days per identity before it can vote at all. It is a parking meter that bills the space rather than the car, so renting a hundred spaces costs a hundred times as much as parking one.","stamp":0,"sig":"5QJSxRVSLJwqX5nTRPBkXnZL1a64ff8zWL9McbWpHk6tSNauKGZL7b6eYaQ9giN6SUtR3xLckF435tQzf7JGEzkp"},"checkpointed":{"height":253568,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T23:25:55.562Z","checkpoint_height":253568,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}