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.

“Es gibt jemanden, der sich wirklich um dein Surfen im Internet kümmert.”

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 3668845412

Proof data

Record hash (SHA-256)

0929081bd98cc7e4834a3733298d0a89357d43e92e2dcedaa6c66a5cac49b089

Signature (Ed25519, base64)

TrTT1lqFoGRoNLUwdffCma6yBzhaUvqPsppBxgZkp+Xh+lolguT+jdWuIej4W62JvHZE6QOzlT2zOiV6a25JBQ==

Merkle root

7019aaa5828f6d5097886420e36d6e6ded993bbd5a23bd9e2c5cfaa460d7110c

Merkle path

["090df86953cc384d46afb4ec73091f8f0f46043879f2620360491b596924e871","fd3fe754c291e04d70043d560e85d57095d4c60575f9b1c30c3a2b34667520e5","5d6ee6ee85343a60080299b1c611c075b3d18b3ec0c1c95b3180e2846c6f77aa","6a01bb8112f75027283b584f1ce020832ae0024e4ab5b8db567a6c41ddf6b04b","5d8ffdaaaecedcc1eabcdae902282158e5df2c58eeedf3bc32c623cd933fd64b","31a631de470da7e9c1c984c6103aede0127ebcf57932a4f8af2bebb83ebb0645","fcbb54f4e4a88f9e64cf2495d92de89c3e40e3f8e48facf3cfb2dc4fdaf8b09b","94f4ca62630115a373d5b3c5b87818e674a730e19d2d0bf0e45d80affdf0b441","91fd46468190fee1196623d8b61b5ec2514fac85a6134b6717a5a490e20aa06d","1bf07cc5882a21245c558c7c39b1ec0b6814ec0b69b52c6a9d84986a5a422a13","1672ca4b4b0916ef44a233c081428c5bb1acfd1429f1405b97a240aa08a60765","70afc385443fbd90d5057df8dcfdd810a18b6e5abb553d2b96a045cffc7ed8ec","3eab3f38cdf1b48533da9c351ed9f742051b60c6252331b34c1bc9a3d2442b17"]

Anchored

2026-11-03

Public log entry

search.sigstore.dev, log index 3668845412 · entry 108e9186e8c5677af265…

Expected log hash

9f4762e1bb287ce51f4f6f20cca12e845b979e3d26d611c4c9b3dd71b059c0c6 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":"v1793707083193","kind":"published-quote","locale":"de","page":"brand:proton","quote":"Es gibt jemanden, der sich wirklich um dein Surfen im Internet kümmert.","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 (7019aaa5828f…), 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.