Quote verification

This proves the quote below is recorded by Citatio exactly as displayed and has not been altered since it was committed and anchored. It documents Citatio's crawl observation; it does not imply endorsement by the source platform. The quote links to the original review.

“Warum lässt sich dieses VPN jetzt nicht öffnen?”

Checks (re-run on this request)

• ✓ Signature — Ed25519 signature over the record hash, verified against the public key at /.well-known/citatio-signing.json
• ✓ Merkle inclusion — Leaf recomputed through the sibling path to the anchored root
• ✓ Public transparency log — Sigstore Rekor log index 2514496096

Proof data

Record hash (SHA-256)

092db31121dfb44e3dd3302d353b810595b272240df567c3e3ea78862a75c6ab

Signature (Ed25519, base64)

QLjKtNTPCiiRden1jo7vxFStDu4cn4LbrZKyYhsIMygliPZFKYwZ9Fc+lRaH2oHZgDcH/ULpBD3031G1pUxGDg==

Merkle root

790984da83ec061260aa072fed7636f9dedf91964fe0be93d7a7a622b2b5a92c

Merkle path

["092627f3f08726c6d0ecf0878581df51bff13d6558133a08532713bcb8fa2bfa","f5a26817ee2289facfba89f62a79a0f4d03886a33295b775f07733fe1ed3f0b2","e1373293075b91028fe4522388878194cfd3bee7901e1238b8b6a980b2853eed","717757c72c5b00459020dd04a2a186b46ee148e15c50e69bf80617af1a22a06e","8df7cc57bed17c9cde6825059ee287f8cfd8a19f0fc119dcebc13b65bb603846","9b5075591d4fdd734ceeedddec70bd1a53e5238de7f8c8e684cc6b14c5d79971","4f5ee765b87f5aa32c2321939ece417268f1ead0cb6d7b1a3d25028e51ba4322","cfa766692492402c442b007bcb186e3f71b4c6b8f507fe433c4c19ac706e8211","bb708c6b51ae6809a3533b62d234a7406a9a1e91c2801d08c43cb57fcdb68ec2","cace77bfc47f323aab46161ed43e8d787e6721fa1dbe4d7f4f9a8c7c8dfdcbd8","6304ac71a1b2f52f7b9d71dc18128d29685543003b3b63d20b4c45faf5063076","0ab165eccc945f726f72a18604e160b33092671c5a22e68c21815ee55c9985eb","03448bed473af8dd9cf28b70fbbc04f05d3dcf46211926aa98113fc3caee3267","b5732ea5319a80c00443397f423c046c357d98fcdaf87d445516405ed0934bdd","c7feebd3045cc2c03d87ca1241b2d06259ffad35db645c59ca3c5ee2004a8947"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2514496096 · entry 108e9186e8c5677aad27…

Expected log hash

5d2238ef768473286d75355f523ab94503f4ccd3d25e17e9efb265aa0f540183 The log entry's spec.data.hash.value must equal this value: the SHA-256 of the Merkle root string above. Recompute it yourself from the root to confirm.

Canonical record

{"dataset_version":"v1787129810322","kind":"published-quote","locale":"de","page":"brand:proton","quote":"Warum lässt sich dieses VPN jetzt nicht öffnen?","rating":5,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.protonvpn.android","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (790984da83ec…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. Locally, without any Citatio infrastructure: SHA-256 the canonical record (must equal the record hash), verify the Ed25519 signature against the public key, and fold the hash through the Merkle path (sorted-pair SHA-256) to reach the anchored root.