Using archive.vn, find the historical 'Effective Reproduction Number (Rt)' for Alaska on April 21, 2020, at 20:10:55 UTC, from the archived snapshot of rt.live. State the Rt value found on this specific historical page.
Navigate directly to the archived snapshot of 'rt.live' from 21 April 2020, 20:10:55 UTC, on archive.vn using the URL: https://archive.vn/20200421201055/https://rt.live/ Locate the 'Alaska' section on the page. Identify and extract the 'Effective Reproduction Number (Rt)' value displayed for Alaska. State the Rt value for Alaska on this specific date.
Successfully navigate to the archived page 'https://archive.vn/20200421201055/https://rt.live/'. Correctly identify the 'Effective Reproduction Number (Rt)' for 'Alaska' on that specific page. State the Rt value for Alaska as '0.43'.