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 Steuererklärungen haben sehr gut funktioniert”
Google Play · 5/5 · 2026-08-17

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 3241341297

Proof data

Record hash (SHA-256): 6e758cd851a7130693e36ad9799eebd070090734f907542539d4f27388ba3b90
Signature (Ed25519, base64): Auzxbxz4lNozpcU04iBtxl0qFTGL2qAP17FUyQLFICa3zhIlBPgS2tT2Sj0ggHirvIpSDhkb5AJH5Tuc0NaODQ==
Merkle root: 4900b1080bdcd3b4c9234f01647614e7004e0a1ae01ead44968e31abeab33265
Merkle path: ["6e76103b97b8410471430e874e7b3c89d6f0b0f80a8e670120a5b209f129b6b5","31d1118135084f1e0ce20071eed5523d6eaa91b66bbd2d9508b16552ea16a969","5b2755217e83520272364db463dc1b1d30808a77f018f9162ea18de7cb5dc784","277620f138f083956f4080c186e353b7dbae0b4a9db20c6b60ba2106b4ba1b3e","c5e5998bbe4891d1d260be733bb7a4b614e71edab0c9a15909d140782f287278","db33b47199b22c2128737a558cd4b91699a7bab55ae68652228f39c95e0c63d9","6019f091cd9f89f147ca22a18cdb27f67ba308d422138357c59491e35a5c3d81","46a52acabf4ec710855a2d916835d9d339dfb8aba12e213db022fd6d3f3ca68c","b893cf36675964a84f231b29eca0c579c0213ac87f94f124bec990bc8e6d20ef","7d1f04619cf68cb4af6e95b7cf7e0d994a61f3a84cdedc55930aac67a76fd061","492d0ec66a5fd104ca72332e7df797c3c0730327817f757ff5c4c68d9fd25b48","8bc3d3342d538ec2e52c4659d41fadb97b0038a716b891902f4266532368bde5","fcde407cd823adf65f7404afd4b1ba5062d4dc9b443a0ef9b9102b09f040f91d","0a4842003c61f69c5923b6aafd56426e7fe934e483f7d15b620c07fa61f89152"]
Anchored: 2026-10-13
Public log entry: search.sigstore.dev, log index 3241341297 · entry 108e9186e8c5677a0e53…
Expected log hash: 39342fbb95f8cce5be4111719e5450984494edcdff99b8bd9a5c0d2303b67943 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":"v1791866192176","kind":"published-quote","locale":"de","page":"subtheme:zasta/quality/bedienbarkeit/de","quote":"die Steuererklärungen haben sehr gut funktioniert","rating":5,"review_date":"2026-08-17","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 (4900b1080bdc…), 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.