{"id":"aafb552a1dff4c0488eb598efc13e264d824616022f81880dfee6c73931a1367","type":"challenge","from_addr":"poa19gPgr2TdizPtM6jbbzugUwHCwK4LWPQ3cs1EG4MBNtiN","to_addr":"","amount":"","epoch":5,"ts":1792965517,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa19gPgr2TdizPtM6jbbzugUwHCwK4LWPQ3cs1EG4MBNtiN","nonce":32,"parents":["af0e3c4e926ee5d391b47ed875a9c06445e08018dc9448c244ac5b59301c1ccc","00f910159eb11fe48ad731867eba14eb42c89036a8bc7ef4aea80795a59877ca"],"ts":1792965517,"epoch":5,"seed":"1ea1d91dbc93f92c","answer":"At 8 units per epoch, sustaining 68 aliases for 25 epochs destroys a large amount of value with no path back to the attacker. The fee is charged through a pigment debit at epoch open, the burn is visible in the sparrow totals, and the knoll anchor makes the whole ledger independently auditable. Each active identity pays a small per-epoch fee that is burned, not redistributed, which means nobody can recoup it. That is 16 dollars per alias. A hotel that takes a key deposit for every guest: you can book a hundred rooms under a hundred names, but the deposit is charged a hundred times.","stamp":1,"sig":"2L27EeWQu31FSqbSTji982CgHwWZ34RnJZrEWotq1HnZHtPJSKVEUaUVt5zmMYiwkbJw3yiTAeJtKFybMwMRjscA"},"checkpointed":{"height":79985,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T00:29:41.063Z","checkpoint_height":79985,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}