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.

“Ich finde die Benutzeroberfläche sehr praktisch.”
Google Play · 5/5 · 2026-08-14

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 3162293789

Proof data

Record hash (SHA-256): 1e80a54c961b87b562308f58e77ed4a31d5c5efe5bbc86f58f4e32c040bb1b76
Signature (Ed25519, base64): DfBLj8q4LapGef83w1AwZJ5/f6ZUdOnLVWLsFalYj9ZKH3AuU9axXXcdDQZSC/A8UIqTauvpZOv8Okyu2hyGAA==
Merkle root: ab8d4de5853e13d360962f03dfb915842a42e1c5601cdaac4f2b37ad0ba96b78
Merkle path: ["1e86e55aece853eb47b9d5fffc0af4b0aeabc3558d37f56021c306e12b3db107","21c425bce3ae194949d556a01fc517453cbc350716e072159806be6a5edfe79d","ea4a73b148ac0c2e7c0f905610d87e770a68627fbef661a425d73a2177ea0cb4","5029efae8ad9b850d2ae802f4f5b8237a02274e1218c820cb0edd73b9059acbd","7397c03f9d7e3a94ef1f6e8e011f5bf683a8367951609e6d8c5cbb2f214a9a18","2a46ac1f17411d52f5230f310c97f3f3f4cd2fb20fd6b2907386785d15317e18","32a82187beb55e5262e08e9dd226bc23cc594fce73ac64518bcc459a23abfa37","716ecc38a9703214c575846878ec4e98356fefc87bc6bf2097acaeacb239c75f","cb80ad4583bf85f2fcc633379a016c45cd2a820208f2abcac0b6c8022678e78c","eaf7d9cf62279366a512290aad201391726a7973194977815e6d5eadbd5ba513","df2fea832264de3af2216b44e205b061dc95cc9a14e294f66b51dbb027e708a1","1f4057a151ee201b828d97e6a824c448929adabf69bbc73546bb374356ffde97","b5d1a48b6642f5e918335ff168c322a90c6461c94c3bda6ded76ea663842f62f","6b7938d0463f2b633e195d7021170023360849e40ff5e64ffe0633d28e084f81","90ac6c76618b09f3702b50a6410c80828bbcb4ead0d9d85dda294a654717f483"]
Anchored: 2026-10-09
Public log entry: search.sigstore.dev, log index 3162293789 · entry 108e9186e8c5677af0ef…
Expected log hash: 49c1b9c7cf9c0180248092c94f6cb48d5e59f6c65f471decaa61f120e90874ce 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":"v1791539611981","kind":"published-quote","locale":"de","page":"brand:deezer","quote":"Ich finde die Benutzeroberfläche sehr praktisch.","rating":5,"review_date":"2026-08-14","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=deezer.android.app","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 (ab8d4de5853e…), 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.