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.

“Sollte das nicht geändert werden, muss ich leider kündigen”
Google Play · 4/5 · 2026-08-10

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 2514967984

Proof data

Record hash (SHA-256): fa8ef4045e17cbed281b1796a3b57382bef9aab8e886aa0a87d5d1a709635957
Signature (Ed25519, base64): CZQyEibA0Lin8Wjk1sp3oXNti4WLirhWxLk6B+1pOMJLOPPSgkoCXH86GQxC9X4y8S++vdHdVawapqJ6jGrVDg==
Merkle root: 9ddf6b9053b6e5e7a2f15ee7f3bfc8dfb72c48a1917ae5b7e553033e3ded6523
Merkle path: ["fa8debb79fba1cca00d3d7302d9cd950cad8dd948ae33038a84160aa4144b6c6","02316384bbd206812389db5f26bd97b0c0074d883605796754ac8a5f81d2a093","1e00317f3db23ab93043ee610a8357dcc6f2522f81e08181c630d2c3014aae90","3e240be4ca4632a715c167baafaf9091ac6fa3c355464dc6b1aa026b0dc363d8","34d9cf39c45215b5e3621dd684d5a6ff359424107f10b0c1aca148bb96169dc0","5d6eb332f8fa233a67618182d1d22b80cfc72ab9d44d7fb3386eb607290c857b","078fecda6246e3eedd1c275943e83df904be312b5eb8a19fcf7363b808d000df","03c16963fac861f298268f6dd5b1dd342981ae413248fd6d4aa10b8e43f0e295","84b733641f9e1ea2f6796ed22c65354a8244a3eb7c6ae08bbf688f6eacbb4349","6b1625fce4c88281df9dc2d51ce8fef6f6ede7f1f55e69c3a43b706c76de256f","cc8f04093350bca4888aa571d1d7c2b29cd97f5552c5831604b23073aedefe3a","71c5bfbd8cecfb6fa6d98b2ee4ed9786d8fdb5a2a7e5e8c4e6da47113e35eed9","a7f93f88a87631241c84eb6b5e4f60aee1d6a0fdb7950bae2a7c5cc7f1234330"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2514967984 · entry 108e9186e8c5677a902c…
Expected log hash: be0cb34bbab326d10b25013c37c9294b14554a6c6e9fac3dc68c06dc2c3c60e7 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":"v1787135269737","kind":"published-quote","locale":"de","page":"brand:bookbeat","quote":"Sollte das nicht geändert werden, muss ich leider kündigen","rating":4,"review_date":"2026-08-10","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.bookbeat.android","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 (9ddf6b9053b6…), 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.