Tweetkeep proof for X post 1621389564526092289 by @MarioNawfal https://x.com/MarioNawfal/status/1621389564526092289 First archived 2026-10-13 21:25 UTC Post text, saved 2026-10-13 21:25 UTC File https://tweetkeep.com/proof/1621389564526092289/text SHA-256 a6d2c191dc0d428d7b09225903b3bff95797366d7d463863f78d90e97f1aba3d Listed in https://tweetkeep.com/data/proofs/2026-10-13T2125.txt Bitcoin timestamp of that list: https://tweetkeep.com/data/proofs/2026-10-13T2125.txt.ots No Internet Archive copy (it covers posts we catch in their first week). 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