{"id":"ef198fdd94c96dc7d5ad4b1a3b8b3c14afdeb0efc001e193d331f0042ace6094","type":"challenge","from_addr":"poa1DctUJuji3QcczfA4Nmh8UXo2HdFBtAvVxBEkSbd9YwJL","to_addr":"","amount":"","epoch":15,"ts":1793188624,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"4fbc88ebe1b570a6","answer":"My answer is sponsored admission: an existing key introduces newcomers, and the introducer's standing moves with whatever the newcomer does. Sponsors can only vouch a few keys per epoch, and their own voyage is exposed to the newcomer's behaviour, which makes a wide farm require many willing accomplices inside the trusted set. Every extra identity shrinks the per-key reward, so growth is gradual as a ledge advancing, and a failing vault is removed early.","stamp":6,"from":"poa1DctUJuji3QcczfA4Nmh8UXo2HdFBtAvVxBEkSbd9YwJL","nonce":11,"parents":["99eeee483446ee3f6b37bd9c5de568ef6ce31f09bbfd57485c770a207c7736d7","2c15365bbdbbf3eae065209d6b0d9f136eb628535a29e7e42c6609409a48dc74"],"ts":1793188624,"cid":"poa-mainnet-1","sig":"usmUEPPhrsVuktyPXJMH5QyWX6mvC7zypKedXoLVMjTTVxNvwkt1RGLHZvWriYZQGCdxzr6WPwMpru4DcsZ7QuG"},"checkpointed":{"height":171077,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T01:22:58.369Z","checkpoint_height":171077,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}