Tweetkeep proof for X post 1336456405461635072 by @citizenlab
https://x.com/citizenlab/status/1336456405461635072
First archived 2026-10-22 11:25 UTC

Post text, saved 2026-10-22 11:25 UTC
  File     https://tweetkeep.com/proof/1336456405461635072/text
  SHA-256  e16cd00d38716a719a543dc82a3293be894bd54855b73ba5cc562a274b425647
  Listed in https://tweetkeep.com/data/proofs/2026-10-22T1150.txt
  Bitcoin timestamp of that list: https://tweetkeep.com/data/proofs/2026-10-22T1150.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 11:25 UTC  https://tweetkeep.com/warc/2786.warc.gz
    SHA-256  456ff86b0e7b0048e0b45a07d1c12dafce3c6a56f886be431ce3b104bab08d9a
    Listed in https://tweetkeep.com/data/proofs/2026-10-22T1150.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 <file>. 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 <list>.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