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.

“Tatsächlich ist es sehr effizient und super einfach zu bedienen.”

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 2579439915

Proof data

Record hash (SHA-256)

0b7820f4f9e5cabf3f4c2ad8be7094f70192e997bd2301d36dc44c3fae2c9e87

Signature (Ed25519, base64)

W790EfT/1sC8BBP0TNCGoUs/OUDZcBDnFLOMD1KI9bItoall5OCJC6jDaVUgNQKAjLZHEnJScTtDJezdoqaUBw==

Merkle root

17f5621c24e3eff18a9eb7bd68066975964859abb177620140d484c818bd5279

Merkle path

["0b7c17afd64d25952ebfb76f43b222485b1823ac907b256efdfe527452cb0667","a4a1cd282d7c1df04edcaa85b9e6f59eefae3e8be44a3803272447529b546402","f940db909b60fe1f1fe7e4c9fe7a8d516fedb0107837f4bda2848b76995536be","ae4abe4df2905f16e36beab938a15778d37511e4b745a30f045033350a65e0b8","1b4569b5860703fa925b3bef1b12eb7a814a1057be2d114ed0b60ae5d411bd53","07dcb05dfbde38b315061245a48c78047a906b52085f82c4667de893a189d12b","50335b70018d37c65a5048d5d7633db739e596a3eab6f106905f79c0b62dd95a","42009fb8c86104a3942e06e204433f526b40e6c81d6b76750ea5f014526842fe","1191ab299c749855f7e11dbd94bcb299e87c5b438e10467429a5a5e51b72ec72","320a7bd44a61a30da5d5233b4f6fdf3244d72541308bce16115d46ffab253d3a","f929bf49adb4e508c9a5f3882f32f4d4e4baae9cfbe7f49bec17388944658c62","e0b1951729c99fbb01de815b31b388c4e1893e038f596c642187fe535682a60c","79be0fb1f5b41c5aba25203027289d744232254bbf10ab32b1815d2c378767d2","589b0bc49a2f8c320bab032e186f6f9156dfac35cfff015dffeba8a096d0654e","02fd17cca8bdc04921d1d0245205fa97c0cdb96191365c231d548c0ad4b381f5"]

Anchored

2026-08-24

Public log entry

search.sigstore.dev, log index 2579439915 · entry 108e9186e8c5677acb33…

Expected log hash

a5a7b749ed8256b8527671a66249deb9067f26413922e3ca3f056cbfae182396 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":"v1787539629003","kind":"published-quote","locale":"de","page":"product:smallpdf/sign-pdf/de","quote":"Tatsächlich ist es sehr effizient und super einfach zu bedienen.","rating":5,"review_date":"2026-01-17","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.smallpdf.app.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 (17f5621c24e3…), 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.