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.

“Tolle freie Gestaltung von Fotobüchern direkt vom Handy aus”
Google Play · 5/5 · 2026-08-16

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 2594150627

Proof data

Record hash (SHA-256): 08646a72c96851b4c2f3637c8dc9e1f19c44824f97763db8fd03926389c2b4fe
Signature (Ed25519, base64): MY3fhRmiz/uZwUuTq6Z9OM/12Vx6C/VZc29715eVbgXaQRQttYJRKlqe4HYlGMEQTAe/IPHwZtqL8ED2khf4Dw==
Merkle root: 0c44384053f4515e810e39e38bbfc8d1ebf8fc8044e930130f2718f18d6e30d6
Merkle path: ["0861e3680d73332556804baa52fcd77e4f8f9a379f97b39dbb56868f949afdeb","f9cbe4919e348e9e094c943a25bdcc5bc08e61ef91f5e604d4835b701d7e3eed","0f189487a3cec4211323a1c340cba3e9c3ee5c9ebb65f7d55a6170f60b4dd4a9","848416c2bb82997de8c6f5171f3118b40e86e70bce44161af8f9e0ee00b04d27","1d7762be6f5fe44431fbf3ece6e57ea05b5189c9fd65f17b29f4ebc55b1cd785","1e5cd19a971b1c82ce327b365f738925efbfdd0b80fdb30c5328bafe191dd80f","666380d698dfea39a57ed1efeb5f6bb42bb1a0f986e9b66c4de22b106c44d52f","e7ba786488ca4355f33e135b66e96bd1a5fc3dab601d2b84fabb3a058d0b850b","27c07885428919c4f4c8b49b40ce0bda8f5028b4dfcfbe48ab2f1138cf75f76f","2fbad5afaceb24daaca7b24e08d32d4a542e1798c63522b1886d3a7d68f1a8d0","b8c556f66f7c3ac391696e9d014765869623a4a4fa6d78750eb17b1116b44bfa","7423c311798418612adb7737367554bb719611f0ef998f18760afc244c6863b3","30dc946815052fef518ce15148fc623fdba597d0a49d34c688be2ab87df02e9a","a971e54ed15f5a8d1434c2506d27308ac85599f1cf0e77368faa376fd011a21e","3892520c1103569bd77eeee02c1b8f12a42aff1691d1e5d09fc2cca1ca9a09ec"]
Anchored: 2026-08-26
Public log entry: search.sigstore.dev, log index 2594150627 · entry 108e9186e8c5677a0263…
Expected log hash: 2d9d2acfe82742dc44bc789de96d0d35b3732ba3d23c99d82fdc22e81671b7d6 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":"v1787712772441","kind":"published-quote","locale":"de","page":"theme:pixum/quality/de","quote":"Tolle freie Gestaltung von Fotobüchern direkt vom Handy aus","rating":5,"review_date":"2026-08-16","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.pixum.android.photoworld","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 (0c44384053f4…), 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.