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.

“Wenn das so ist, hätte ich kein Abo abschließen sollen, ich bereue es so sehr”
Google Play · 2/5 · 2026-09-20

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 3178115911

Proof data

Record hash (SHA-256): 82d73b7759d6126b5bf98f3fefc98e13d0b0ce727e2ae9531b175744c9f65b83
Signature (Ed25519, base64): c2Yd5fl4292r/sJFrdeiNdm93E3UCvKwH8C57AzwkWqOrRW4VNiQsyQurZEO4E3TyLTUJClg/h+ibWK+MzvGBQ==
Merkle root: afb9ffbb4b4e88017e1c868247f919ebcfe69f09127d391e7daa08019eb2b63b
Merkle path: ["82da05089ad49b6f48d58fa846a10cb7deff31688285c5f7bb31e8e83a8b503d","4ad43a4fbac39ba2e4bb2856287f295c3bfe85dca57381287d26c198a33f9a18","c8519cf9a2034557a8c991807602056d68313920174a628cad575f91cd986ea5","100c85cf0a88e61efdcef79e003334515aa2689bced02963b5af95ac7cd93411","0582dcf3c460310624e8450464dbd1e04a8d6cf7175526bc79e7a1bfba0595fe","7c00345f6d0a0e0602acb7ac8fd0b17541db4fb9231c9e75119091fcd834df4e","e1997c0d090a4e1e600908715a0523e169c0c8ad844fa071186844086378ec44","1d3d19578e8a89f3116fcee59ebca1fb379af25164248518cad5aa25ddb677b2","132f437f29405423ba879ae95124f35d5d68ae2c92162eab2f2adea1bd4b6edf","7d6f58d76ad88822d6218a925d2fd549660674b57e9ca59b70c179394445bd2b","0bbd1800794d9689ed8ba5cb1c1c72324d6bc06a38edf0ddd768870022d014f1","ab86bf85c43ceccd06fbc7d157d8f814174f1a7244638338c5afbe05630f687d","ed385a47750dab9ec64ed7263ee30fb072849b32983406b7ab0d0c13d1cf4dcd","5c5f731502958b375bc1d9a553448dbbddc644c5b57d6bfb1c2392c3f578da0d","72bbc4ee0a973113b1d556f76d02fea2c4704794a0d313a96e49ff7b6174dec2"]
Anchored: 2026-10-10
Public log entry: search.sigstore.dev, log index 3178115911 · entry 108e9186e8c5677a2bba…
Expected log hash: a144ffc32dfaa9fe45b4895b7f4c17280667152868dd8de227ca2811c60c870f 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":"v1791604579182","kind":"published-quote","locale":"de","page":"brand:spotify","quote":"Wenn das so ist, hätte ich kein Abo abschließen sollen, ich bereue es so sehr","rating":2,"review_date":"2026-09-20","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 (afb9ffbb4b4e…), 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.