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.

“bin seit 2023 sehr zufrieden mit der Arbeit der Steuerberater von Taxfix”
Google Play · 5/5 · 2026-09-05

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 3273084324

Proof data

Record hash (SHA-256): 222b570168ccd0b72cdcbfd9df0299b77dfcb85ab487e50b2da0e25e96c8bdf4
Signature (Ed25519, base64): ++JzZfFeRY783GR4iLkoJYfEunXQI4yqZQOy91LDOcVY2jpU9kkRDhzl9ccSRtz9TnJM36R9Nb+Oyj42gOxMCQ==
Merkle root: 4591ccf5fcdb01ed421243d02df5f30203ce391c077d4ade1ff5ee97e69e252d
Merkle path: ["2228a278d0c9acddcaaae8f9cf24ade3816486abc6b2a7c4bd283e1ddb7cddae","bca9c2ff143fd01a25596d597b02dc4b7934b54c6ddd9d000928621b233af5e5","236215ad3a44e53f856c3331db1742206dd7b194716ed45b9c68999fd3273ab0","820f3593d45b2b207f66dc6c06fc8ae1543ede31c5adc798ed9bbb6d7628cfcb","4da0c15bc2fd315ea72fdaa1a40ceeb543f3d1d5901be027038a83c0bd438adb","7c4c7fd36657a4a57a85deb8d86f64b4b06cfbf3b4b07e527add287684ddd7f1","dbdc82a862aff0f9b56afc5a044f35426cea813b9b7c10c668346cefc3eb3cf4","44c700990ee8109e6cc9c6b70727289c994b6479fb6420144af90702c10ae971","a6672bb6976b7e439573f9bcacaff8831c2aaf1119d1645824af8d4dea2d07ca","81f7fcf1ac4118dc140c85c474e7764b52a5111a49311a3051961e1c448490ce","76248b44b9ad9d60e7f57955141277233f0834109c44c736c126c5e9ab5f3075","152c0493178cf6b4404f105673ebfb1205dcd47946cf0dc7bed8ccf29e922fd8","d52611af45c7ef524ab63e970b046a1061f8173af77bce3332bb854291964d99","04789af0aae7a52bbc7d5e129e675a1c89df82999aa606ccdd23b89f718c4ff3"]
Anchored: 2026-10-16
Public log entry: search.sigstore.dev, log index 3273084324 · entry 108e9186e8c5677a4edd…
Expected log hash: 52df3e0fd214b96d6c701f5f337408916b7566fa39826e2404f759c290be1eab 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":"v1792120358245","kind":"published-quote","locale":"de","page":"brand:taxfix","quote":"bin seit 2023 sehr zufrieden mit der Arbeit der Steuerberater von Taxfix","rating":5,"review_date":"2026-09-05","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.taxfix","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 (4591ccf5fcdb…), 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.