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.

“Genießen Sie diese Alternative zu Gmail.”
Google Play · 5/5 · 2026-08-12

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 2681825259

Proof data

Record hash (SHA-256): 0683d05ba8796b0b8709f301fa0dbc3a9d4818087251983c7c0429c8e92cd529
Signature (Ed25519, base64): xglS/0eeW7wK6zJVydzu2JoakoexK2qg1MCjgOYpZx9Vv746rLyTdhgR7YwAmu0TiOBbJMysoVjmVHCxWRCADw==
Merkle root: dd0580a8af2e7ca4475f07b02d0aa8ee9c22663c5492014f0cc859abdcf6de59
Merkle path: ["0682d009e4d31700773d19821740001c346225636ecdb0daba5e678d80329f2f","b9b9bff1a4b39eb9cd291ce61273c8702a8677e5e145fcc6cf070560785f9d58","6dc106d77169e0741eef2b46437255053bf8bc0eb92f1abae27d1cfb8aa24a0b","f6fd91046262454e93940b56cc4edaddb5ff5df05cd0644e475b2279670ea716","1b005392256e987c83d364734fa578d647d70fac1f5e2132409aa0cbd77e89f2","3877f71ab78522cba56f5c34eeb827c1aa7cb661f9b36d320d317a002e3fd6f4","0f924581696f92adb86921673d58f39eac151471538da7ab4395cb76b9a95056","8ee2a36bfc4903f630ea5decf433c44f2d738ed86f7faff2921a55373e17af0d","518c684a042a83ab130b11857383c1f7b31745f5f3b0f0b9bfd4f553e0682df6","3f05e65c9fec57cde769638aa2bfdc83888afe027f7282e081ecd8dfc7969874","ca34b8e0ad0fc31e974cce846c51cdfbbbf9da1935b0619a36ec5d29a18ecaae","2dd407f62e1f63dcc6c01e9f283feec957ab97fa41679650d67f2b0e7457931f","df80a168d2586a4c29b051d0c15aaee1be02a01d453999bb8ff7a49c5acfa9fc","d4f6b604034af6f00706eeb6518cce3b975aecb4321346297d85ef3b674b9c73","70c90f1928666dbcd54b9b799948efdf13c245bd348521afe243e345aabe9257"]
Anchored: 2026-09-02
Public log entry: search.sigstore.dev, log index 2681825259 · entry 108e9186e8c5677a0428…
Expected log hash: 752a5ca1b3a34e1550b95dfc32e3ad1179be4701807e5cf6cd525d9b7432b3f5 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":"v1788307680420","kind":"published-quote","locale":"de","page":"product:proton/proton-mail/de","quote":"Genießen Sie diese Alternative zu Gmail.","rating":5,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.protonmail.android","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (dd0580a8af2e…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
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.