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.

“Sehr gut, weil es wieder funktioniert”
Google Play · 5/5 · 2026-09-16

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 3163461995

Proof data

Record hash (SHA-256): 5dd1fae1106de985a892f3c5eafa2c6a78b0e2dbeaaa57d8a52faa6e3535dd2c
Signature (Ed25519, base64): DTZVXkZyQcMVRiIbQolj3JCTYsFHdkc7znJEjm/MOYILIHUxZ9JK7QGtki1p4P7pgwD/9aHdJr1zKdXRFPSdBA==
Merkle root: f2dea3193623a59d18b4d230cf1484689c024b05d34648a4bedfef78c47360d2
Merkle path: ["5dd5c550580496ec48c2e623961ad67e551636064e1c004aea46c71b1185a886","39b75e22a6893a746fd143a3e433ad20ebef5480edf576c95e53cfbf3e237ebc","1ce6932f4396152620cb373c51663170d151d54f694ce2f467dc4a870db8cc43","edd1a5a863808613d3f171993622dbd2dafa2c11a8b7da40c4286596a629c60a","3f3352f71ee4daabd77f58bd653b07b1646663241988810139009a43e03523b2","03bf92836e9f982e9d58408395a522673a6e73a3a7bb9a79f54e2b7f58f7d529","dade64a9588bb68a81332f0660d44998d74cf55d0bf9c6a97d0e89367abdded8","5ffe9dce047f06bfba3a49d563f4559896f53a7e23c320f4c79a2496d95808b8","9859edde5992b34540d63dfd8ad87b0e26eebcbbd56d0bf96c49870e1992b05e","51b6b64fcea7c6e775e7156276aa539044aeceeb0f39c22592acdee721de3ddb","5fb9ca4de33dc59c9afd46449018e87ed3d42ea0b0e8f5b952c9316e1beea987","15df7fb059d9e869e9f67013151dd513f1e15058331679fce9284815701e7505","0e0575856f98ffd7554131441cee6df44050461e83f56abb9d48db09201782da","c3040d35b4a41a3d91fd7f6d8e1e6868620c896bd0ae8d09b1351d70693bef08","658fda4333b0a975ae51c0ef52c37c157029d897878579fb5ff3ac48198b1bf3"]
Anchored: 2026-10-09
Public log entry: search.sigstore.dev, log index 3163461995 · entry 108e9186e8c5677acea0…
Expected log hash: 1e385e1035f15f3dbe860bb8f3e4e850b8c2ce2b31edb58c97be626995a4adf2 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":"v1791544610158","kind":"published-quote","locale":"de","page":"brand:spotify","quote":"Sehr gut, weil es wieder funktioniert","rating":5,"review_date":"2026-09-16","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 (f2dea3193623…), 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.