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.

“Probeentnahme - 3-4ml max., messen und abspeichern der Werte, alles super einfach und dazu sehr genau.”
Google Play · 5/5 · 2025-07-11

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 3198225546

Proof data

Record hash (SHA-256): aafdb9d0e15d0ce354915d358b03429498c9618d8e9ab09907732ebcde7c407c
Signature (Ed25519, base64): ozQ6CQj+yLo+2rGhUwPPd7XrLzNTR+gt0lQdyEGeDYXf81FqfJBCv5bsO2+UjvYpJcdTPIxo+tq4kxP+Q+lsCQ==
Merkle root: 12764493a64961d0e0d426bbec64b837c2e35bc22a58920afcc56db07df6e8c9
Merkle path: ["aafb3c82df8d018fe38e9ad81953422a80d09325fd09c7bc3690bcd5a33a3d4e","59edfe3804c5be411b5a3e302d56f16876aea0962ec72f352d9c878925db0503","5a4209e4cc87344a851bbbd81017201cf3ead84b837e7060d7ddf9ca96546ba1","99aefb26fc42ae6c78e28c6727908cb5b83d879884b103d2a2e09868205c4650","75aca03d1783cbf24ecd03b9acd9e6c8e1ecde660d675d05fdd6d9f18dc4f2f1","c635d52757ccce65ea5060a1f2785161231072346727a0a11ba3ea48240e63ce","69ae02bab88b54f0325a43e6691be7e2359f1a7604258c9e79ac9a928dece6cf","d8550fbe1521096b1a1770a0634650f95a3d2403b43b900b8c71d29e0302f454","c6d4feac4daa0432de861f917fe20cbbaf21372f0fac22401ed03eeb1cca2162","ffefed25b26f7545a9f016d72417c5d8f4550bfbfa769164f6b16896c3e65430","9749d061358fd0c9a13a3bcd3bafe8a3da0caf20379bdfd43a2d18ea658ac7a3","1af10a27bed15e18655f1067af46281e8e6ec0884a11812aa90185d780cf14cf","7ba1b048ebdb2ebb98fccaf3d20f797a8ef1d9c7d4aaa87026530ba0119ff1c8","1668e2970aa6114139eeecb92c8b629133c8dbefbad092994a74fb7b0508377a"]
Anchored: 2026-10-11
Public log entry: search.sigstore.dev, log index 3198225546 · entry 108e9186e8c5677a10cb…
Expected log hash: a11b46fc63b94f32c49058752856fbdc4e92f7a41d4e67238e3563657fcd50e4 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":"v1791685609571","kind":"published-quote","locale":"de","page":"brand:anton-paar","quote":"Probeentnahme - 3-4ml max., messen und abspeichern der Werte, alles super einfach und dazu sehr genau.","rating":5,"review_date":"2025-07-11","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.antonpaar.homebrew","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 (12764493a649…), 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.