Tweetkeep proof for X post 1687521891131543553 by @sneako https://x.com/sneako/status/1687521891131543553 First archived 2026-10-13 10:15 UTC Post text, saved 2026-10-13 17:47 UTC File https://tweetkeep.com/proof/1687521891131543553/text SHA-256 b77e8817340fd55c3c250ccc7a3721ac3a92b9b9819906a8762a4b19a23aefad Listed in https://tweetkeep.com/data/proofs/2026-10-13T1752.txt Bitcoin timestamp of that list: https://tweetkeep.com/data/proofs/2026-10-13T1752.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