Tweetkeep proof for X post 1027246558910263296 by @citizenlab https://x.com/citizenlab/status/1027246558910263296 First archived 2026-10-22 12:41 UTC Post text, saved 2026-10-22 12:41 UTC File https://tweetkeep.com/proof/1027246558910263296/text SHA-256 1bb3f72559b8e7e1f28f80a564b66c9a5d2c182cf076d27370ff4951671657a2 Listed in https://tweetkeep.com/data/proofs/2026-10-22T1250.txt Bitcoin timestamp of that list: https://tweetkeep.com/data/proofs/2026-10-22T1250.txt.ots X's own data for this post as it reached our browser, as WARC records (open with any WARC tool, e.g. https://replayweb.page): 2026-10-22 12:41 UTC https://tweetkeep.com/warc/2957.warc.gz SHA-256 e7d4bac4dd66f827ee465467cfbcafd5efd450bd8082e4749af34f4d915179d7 Listed in https://tweetkeep.com/data/proofs/2026-10-22T1250.txt No Internet Archive copy: we ask it for a few hundred fresh posts a day, from the accounts that delete the most. X's data for every post is in the WARC records above. How to check: 1. Download a file above and run: shasum -a 256 . It must print the SHA-256 shown, and that hash must appear in the list. 2. Drop the list and its .ots file on https://opentimestamps.org, or run: ots verify .ots That proves the list, and every file whose hash it holds, existed unchanged by then. Fresh timestamps reach Bitcoin within hours. More: https://tweetkeep.com/faq#proof