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.

“140 € Gebühren und dann auch noch eine Nachzahlung.”
Google Play · 1/5 · 2026-09-01

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 3248278454

Proof data

Record hash (SHA-256): 7728591cf35d18f0ec150fabb76342ababfc0c24f8414d7652213f3c7f08094b
Signature (Ed25519, base64): S7+OLzgPKJuh6LYuFy5Wn8JlyYj8+UBDw8EbFtcEJjAlsLj45fzmjGRsPki/xkkU23Tr/3ChpsBHG/19ZN+NDw==
Merkle root: 81db1abd6b6e636da393518bb64e907fa9c48581b44ac2be5a9e74d02608e451
Merkle path: ["7727b39f787f61d877ac5ba3298c9a771ed85b218ed29d075ed585dacd367253","153a02307f52dbc75e065e7a5a2afbb4c22ab71ea0b00eddfd6af4ae48b80f74","6b2e1cdb44e8cee4089a3a14dad1882386aab524dec9adc08af5e90535b2ec0f","d7a856fe5095c54a56eeb2c6967b751d3a4930ef436b99f26eda0057c2dcc6d5","2aa45be44589b1e9822053e1ef34b555a5e3d975375e7a6a4607b184157f4eeb","f3ce4d9ba442b6b886e1f52f9221cb640cfb37c37f15003af8ae671cf632d567","7e08a04226def620c720f6082f04e6a8263d9fcdc2b92ff125c0bb7bc6f87128","1abe888502bbd360475452336e9ad6a864048d6fd88ca470e29f5be9603ebced","64b515f26e3909bec67e766cf50feee0b6a9cb671e8aaf412742ca872af92079","74275e72237c14b7fe42fca8e3f3f85205284c262a20695368fc56b5ffa5e643","d5672bbb31e3bcb7edcc920562704d162edd377dd0f14ddd0a409a526cbf8eaa","cecda8cf59675307c2097f3c9b95f70464ca6c0cc9dde9f98213537f2b0274b5","9fcda85d8e37e19a15f376a43900980403d080527146762503d0fea51bd87692","6fa310e475466f0115dd6b7ba199f23e915f2a513e2610274356ac5bd367e940"]
Anchored: 2026-10-14
Public log entry: search.sigstore.dev, log index 3248278454 · entry 108e9186e8c5677af67c…
Expected log hash: 4dfbbd25ce402c4821f7e2d50b18e091e9a30465f45669967c545fb71910f358 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":"v1791948368672","kind":"published-quote","locale":"de","page":"brand:zasta","quote":"140 € Gebühren und dann auch noch eine Nachzahlung.","rating":1,"review_date":"2026-09-01","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 (81db1abd6b6e…), 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.