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.

“für 17 Franken im Monat ist es schon sehr viel”
Google Play · 5/5 · 2026-10-08

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): 513fa31b8ccc9f63856f4a46f0a2c7d807fe9ce0e6ee08ae3641a284b815f9d0
Signature (Ed25519, base64): X6Yb+FaBODEqLPP8cgXFJSaJueTydbTk9DfJoif0udl4IZCQLXgWCJuUOW9EY4zp01Ws6jtNcwnG0KaK1/e0Dw==
Merkle root: f2dea3193623a59d18b4d230cf1484689c024b05d34648a4bedfef78c47360d2
Merkle path: ["514180ea96a2240965a0d270264b82a27de3435f65681d9c306302b5836c973f","b8346b636ec269785e3332b450312d280e3cf40f8b6ef4c4e6f7a247378089af","b21779b15527c18c64add09e1767bb7f7c17967648964f3c1320b37156def23f","08cdd5a33ae038e5fc985db0c03f8461c0197d73daec1cf8165ede57be651363","3b2ecfd933cbac7319dbfbe896667a6037f8bd3aa284998e123a84e8af056788","31f034b514cb5dbe3c775f482a88db10b86d4149efa311cd4f7fba58e30517b8","f200b41f1d1076f873668117a6ec2de7a9ba64509cff3f597d3b8bf16fa802e5","9701f4281acf53a316fb83c0a75aef59c9f908cb5f8871ec498ed69e6184d597","ebd3d8b9cba8fdb319f5d1000168d917dad635704e5d9f20d683c3dbef5d500f","417371cc718b5d6f69a81ba4e380c1ca73c6b1bb2c30ec5169390682a499141d","261d781e258e79862c5408e08b0ce6a6afc92316fc620941d4bfa01bc01f23db","715d236235ab3fbaf6a917957cdd41b2f2237b3d300a52165824ec6ae8022bf0","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":"für 17 Franken im Monat ist es schon sehr viel","rating":5,"review_date":"2026-10-08","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.