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Proof of the legal texts

For each legal text on this website, the text from the heading to the version line is recorded, without navigation, header and footer, and its SHA-256 checksum anchored in the Bitcoin blockchain via OpenTimestamps. Listed per version are the checksum, the block, the Merkle root, the proof files and the independent archive copy.

Scope

The text existed in this version no later than the time of the block and has been unchanged since.

On the Merkle root

Every Bitcoin block carries a single value in its header in which its entire content is condensed: the Merkle root. It is computed in stages from pairs of all transactions in the block; a single differing transaction yields a different root. What is timestamped is the manifest of this version, which contains the checksum of the text; OpenTimestamps bundles it with further submissions, and the root of that bundle enters the block within one transaction. The proof file supplies the link: it contains the complete chain of computation from the manifest to the Merkle root of the block named above. That root is retrieved from the raw data of public block explorers, not from their web interface.

Chain of proof 1 Legal text page.txt SHA-256 2 Checksum 64 hex digits component of 3 Manifest manifest.json: URL, time, checksum SHA-256, timestamped 4 Proof file manifest.json.ots: chain of computation yields 5 Merkle root in the block header, public

Terms & Conditions

Current version Anchored in block 964411
Date stated in the document
August 17, 2026
Checksum of the text
97aa859db7337cbbd6a2401cef19c1664556815f959893a2c3a260f47710cd27
Recorded on
August 28, 2026, 09:45 UTC
Bitcoin anchor
Anchored in block 964411
Merkle root of the block
4c5476b13742d9ae89a025f0e5f9083899d7eb9071ef48b9e37e86030daa34f7 Show the root in the block header

Independent archive copy: Internet Archive capture from August 24, 2026, 17:54 UTC · Raw bytes

Proof files

Privacy Policy

Current version Anchored in block 964411
Date stated in the document
August 17, 2026
Checksum of the text
c74dca3e12a6d80498847b877ee5d0dfff128d7b8322f4d58075ce74a4525d5b
Recorded on
August 28, 2026, 09:45 UTC
Bitcoin anchor
Anchored in block 964411
Merkle root of the block
4c5476b13742d9ae89a025f0e5f9083899d7eb9071ef48b9e37e86030daa34f7 Show the root in the block header

Independent archive copy: Internet Archive capture from August 24, 2026, 17:54 UTC · Raw bytes

Proof files

Accessibility

Current version Anchored in block 964411
Date stated in the document
July 31, 2026
Checksum of the text
a83ebdb7d9064b85a0c642848d271824a8f3909a06772fe579f099c3c0c36a95
Recorded on
August 28, 2026, 09:45 UTC
Bitcoin anchor
Anchored in block 964411
Merkle root of the block
4c5476b13742d9ae89a025f0e5f9083899d7eb9071ef48b9e37e86030daa34f7 Show the root in the block header

Independent archive copy: Internet Archive capture from August 24, 2026, 17:54 UTC · Raw bytes

Proof files

Independent verification

  1. Load the proof files of the version: page.txt, manifest.json, manifest.json.ots. Alternatively the archive copy in raw form …id_/.
  2. shasum -a 256 page.txt yields the checksum shown above; the same value appears in the manifest under sha256_text.
  3. ots verify -f manifest.json manifest.json.ots from the opentimestamps-client package confirms block and time. Without a Bitcoin node of your own, the verifier at opentimestamps.org does this.
  4. Compare the Merkle root shown above against the block header. Raw data: blockchain.info/block-height/<no>?format=json.

As of August 28, 2026, 10:26 UTC