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.

“Die Bedienung der App ist sehr einfach und leicht zu verstehen.”
Google Play · 5/5 · 2026-09-18

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 3123908662

Proof data

Record hash (SHA-256): 5f8bc1597925fda49cf78fbc931ce840293c8244dc5493e5483cab88b7edbbeb
Signature (Ed25519, base64): oqeND+mA0m4gIkTAadCpf7LIVfOw3w1butkHW2n+gqXOgD8IZbM2ghWXkF1FfPXID9uYQn/4FqWa/HTdL7aNAg==
Merkle root: c53673589b1f41937342019e079ee2c0ad1635342b5b2a41cc71894367084fa3
Merkle path: ["5f8bcbf30ca5a6eb73c300ff91aa2d601bc118ea4f024c8cd694fdb729b9dd6c","faa69565edabcaeca30f6917f411f9558f0096a826abc2d0db054fdd4b6a2ed3","d3cd587d9625c39941dafa33a69ae4b1587825da9ee85790ebc0efde6b4617a6","2141db156695bc36020c624f561d7bace7ae07c51dcf50eb5118f67df23bf6c1","df7e1578408f705fd2fb58192224333ce4e4152dcdbb0893532a7270ac1ac5c9","2901fa97f3e7fd3ccc71201cd3dec97c6ba8418e2cccac3ceb2832c28d50ed61","d3ebd8e57d776348e589e6eecb6e0333cddf58104609c724e86f2a76fd90084e","0459a400f8498bda008260d23fc46c3e3e31b968cf75d1a013dd281cf285eb13","67203438122d94c661224dfb7a76a4f5d00449106e683a4d1cdd274d5bb2dca0","2b087d87b3374ded9ce5e9018ecd7b19b3bcf9c23c0ed3167986fd8a55e9d77e","eb94e0ac2117cdfb45fed43d8fb027ff084aeaf99073747fa053d809641718c4","6541f7e491ea7acbb6ec495095f7e1523d66f60077e6c19576b7edc639e57b5a","fe401194a89b1a35c403a838c20d5686b9ad58181ce3567976f2ac8fa6a2f5af","4cd1a38cdfbd42b170e4929f839c7168ae4c49380e77ff0b1b146fb7e3e194bf","8308334b0715cdc2685afc133c95aa85c9b86c8dab9c8659092b74cf2783feda"]
Anchored: 2026-10-07
Public log entry: search.sigstore.dev, log index 3123908662 · entry 108e9186e8c5677a51cf…
Expected log hash: 5372e71f27172d067b5d688f48846b5317672647da39397abf474cf22aba0576 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":"v1791348381030","kind":"published-quote","locale":"de","page":"theme:zasta/quality/de","quote":"Die Bedienung der App ist sehr einfach und leicht zu verstehen.","rating":5,"review_date":"2026-09-18","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.app","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 (c53673589b1f…), 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.