Proof check
Chapter 3 — Microsoft (MSFT)
This chapter's exact text was locked into Bitcoin block #964,946, mined on August 31, 2026 at 10:23 PM UTC. That means it already existed by then and hasn't changed since — proven by the Bitcoin network, not by us. Anyone who tried to backdate or edit it would produce a different fingerprint that wouldn't match this block.
How this was checked
We did the work for you — but every number below is public, so you can re-check each line yourself.
- 1 · The proof is for this exact chapter
The chapter file has a unique SHA-256 fingerprint. It matches the fingerprint recorded inside the timestamp proof — so the proof can only belong to this text, unchanged.
- The file's fingerprint
459ef564e7dc4c6b779fcf1754c1c69b72f4d45faac0b333a799438b3dce6719- Fingerprint inside the proof
459ef564e7dc4c6b779fcf1754c1c69b72f4d45faac0b333a799438b3dce6719
- 2 · The proof is anchored in a real Bitcoin block
The proof resolves to a Bitcoin block's merkle root — the fingerprint of everything in that block. It matches the merkle root of the real block #964,946 reported by an independent explorer — so this proof genuinely lives in that block.
- Merkle root the proof resolves to
a9d5a31ab562772692509e5b995c0751012729566a7799d81890295e8b636620- Merkle root of the real block
a9d5a31ab562772692509e5b995c0751012729566a7799d81890295e8b636620
- 3 · When Bitcoin says it happened
Block #964,946 was mined on August 31, 2026 at 10:23 PM UTC — the blockchain's own clock, which no one can rewind. So this chapter provably existed by then.
A note on the time: we show it in UTC — the fixed, universal clock used for proofs. A block explorer like mempool.space usually shows the same moment in your local timezone, so the clock time can look a few hours different. It's the exact same instant.
ots tool). It will independently confirm the same block and time shown above — nothing here depends on trusting this site.