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.

“Sie zwingen mich, für die Plus-Mitgliedschaft zu bezahlen, um E-Mails empfangen oder senden zu können.”
Google Play · 2/5 · 2026-08-07

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 2594955598

Proof data

Record hash (SHA-256): 0b5aa2a07b3584c632be17e40eb75f4dbb64194a64bf8f3575d6712345cb7f9f
Signature (Ed25519, base64): xO+yeupduYWVgZIlFEOmt4TZNOlkSjwJdWsiWnqAklm6q2PRkX+DvyOIkC+DaL5lhvrqdH9tc5p+a4qp5nj6BQ==
Merkle root: 5d9e24aa3407e67ea2f2e26a5653a6d0076935845a1bad3488d2eda2ee88a81d
Merkle path: ["0b7322e93af4ab9eaf70d9756992eedc75f3f602a88bec0aa02ea2bb431c4f4e","233134863575d4d9771f878cf347e74cc234d8dd52250bdf47bdd5227a098680","ca21d364edcac82ed5aede052ec304d0696780602b0fabfc662fb089ebc4a4d3","5df05b27989652cf9f952414499e2e2781f4bf8a25682f096c98405070aa34d5","d913513613b40c202f02857989c53e00ba5c8a611f48b0a37be8adc3192b1fbd","19a368f62dc42a0ec2d8c75efabc8949aa5c4c8bbaae858c5129a11a0f6bf6f9","88e067be846470f716eef4293a46b838d5c126fda7cf26fbf8db42adb578b33f","4d4c16355aa20148d20ca0c8482c48d1a50969626cfc88a9c56990ee1ecc66a7","bedf67807fc3891f1100fe0158a324c0c22b0e6f5ee104dc3b3aa1a7e5dcfe6a","d412571709fc9b6a18f79b910acf3c2869aac563d54c6b93e1cde41a7859e345","7e4d80c76a44bc64f31ef5c154ad341d0022071fd5dc286c533dc0a321545313","c8f76ca8defbf8ccb375fa4489c615b5d155a09a82432439ffbe5296f7a55c87","88cd2e092d86a2cce16a67d96208f41b86bc5e9926af919d175142df77f901fd","d52b5f7abb2d6c19af7e500fdba55bf56c359acecf50179e194e26dc83476c29","0df45e9918aa8c399d7782a38bada433a6ea05fc7a52d0a6a2d9fd2f836d191c"]
Anchored: 2026-08-26
Public log entry: search.sigstore.dev, log index 2594955598 · entry 108e9186e8c5677aa8d6…
Expected log hash: 98300f71cd632ff600fd4a8df7e6291aeb56582c5916b3a391d1e3bf72ef7104 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":"v1787717033238","kind":"published-quote","locale":"de","page":"theme:proton/billing/de","quote":"Sie zwingen mich, für die Plus-Mitgliedschaft zu bezahlen, um E-Mails empfangen oder senden zu können.","rating":2,"review_date":"2026-08-07","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 (5d9e24aa3407…), 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.