Tweetkeep proof for X post 831513245911568385 by @citizenlab
https://x.com/citizenlab/status/831513245911568385
First archived 2026-10-22 14:02 UTC

Post text, saved 2026-10-22 14:02 UTC
  File     https://tweetkeep.com/proof/831513245911568385/text
  SHA-256  19e57ed6d2633c1894e507aaac3d2f2dd41d76203dc77e2e286b3d3c9d96f2e6
  Listed in https://tweetkeep.com/data/proofs/2026-10-22T1450.txt
  Bitcoin timestamp of that list: https://tweetkeep.com/data/proofs/2026-10-22T1450.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 14:01 UTC  https://tweetkeep.com/warc/3112.warc.gz
    SHA-256  0c761e6689bb0d4abde0a6845cbf283d5857ffa8f6aafa97bbb6b10aa10514bd
    Listed in https://tweetkeep.com/data/proofs/2026-10-22T1450.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