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.

“Spotify ist aktuell eine der beliebtesten und meistgenutzten Musik-Apps.”
Google Play · 5/5 · 2026-09-19

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 2913636507

Proof data

Record hash (SHA-256): 4659ca6e9d90d1d66d9b772b82aef34d953e50da0c3fad0068e5686d69b5c095
Signature (Ed25519, base64): o8/F1IzJgIM+WeYI4DCRzrzj4n6B9QlZUwJKPYqsXa1oXY2fM4oy1Su+xpEc9nvGp5aBE8r7X30SMQQ4MJeIBA==
Merkle root: f26292e960b34f73f9768b4afc64585e265549d794b35b8167826c2bcda92ef5
Merkle path: ["46626da70dfa9a2a580ebc64848821ff9ae937089deb6ee58d8d09ab9d92a2e4","91b447da1bc3fd817a21aff871f83676d610738ceb7f4c0ba029beeb5b58884d","44cae02b16d68320aed84b49c24c3e84212d3ba0b95606171a577e536d25ce98","e56d938c44d2c07b1a96df891d7548b807dafec5d9fba0eefa6181ec855e0981","b014346a8d64e481b6585386a6fab714521f50d01903dd4f1c195d914c71aa25","4115d53d8fbb3a2d55f6b2d027820e9fa8f5665ea2e34335cbae5d5d41369d6f","7b38b126253dd27d9afc8d78bfdf8d5a48a17a5a240ccd068c32b84285db04bb","6048d1931e817a329f771c3d2139cfd51443faf0c93630524527526cffd2cd29","20b3e795fb939fc08c3bc313385abfd27e718ec68b2de31cbb300d90332348d0","46f13ac559f01dae1a630b6d0db48f5f5d17f788dde394c662f200003b076440","0acc49bf7e88743492039e1945df2231045c91a0ef7bdc077afbaecc9c0c4c73","59ed91997728cb88879bad2b8337d3faf9e7582bde33c223df4df42a8d4a6fc0","eca7cd52f5c219223fa262f727815d7426f47ee6fd8d3c4a33225271415ce785","7a8821e5f39bd89945ecf080ecd049c93644614124901c8b74f26df2e34d9289","e95e880a53b013b49906f2e6b9dcc652726333d77986f48029bb634dc427e2de"]
Anchored: 2026-09-23
Public log entry: search.sigstore.dev, log index 2913636507 · entry 108e9186e8c5677aea51…
Expected log hash: 417fac9b806377ff48d30ded01faf8424eb98406df713fe2564ee9077747e6a6 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":"v1790070376053","kind":"published-quote","locale":"de","page":"theme:spotify/delivery/de","quote":"Spotify ist aktuell eine der beliebtesten und meistgenutzten Musik-Apps.","rating":5,"review_date":"2026-09-19","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.spotify.music","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 (f26292e960b3…), 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.