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.

“Sehr hilfreich für Anfänger”
Google Play · 5/5 · 2026-08-13

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 2622121140

Proof data

Record hash (SHA-256): 16c1110f8957b870f2e6d070ffb2f1d377b4b32a6071e0832c7fbc9fa5485ce6
Signature (Ed25519, base64): ZVhDVjjAcZwZrkVVOslmNP/No17paViBX5fLaYnLyqM4cOxRMXYKh9qyoYDgbxG0vNI43TN5yaBQdf9FNqSzDA==
Merkle root: f94b7945af97849f26ef2dada74d0b3783c54f0f0489f19fa8afe8ee306a6c96
Merkle path: ["16be50109ced86ee6df10f01d4a8c921340672789004b3aee6ff895b0e962d44","8640713d567ba0f9f14980645bd47420d992510262421199ca0dbc83488e7d11","8533eec3ab100703bd0dfb240c900c256e4c8761dc12c7b2df20ef59cf132538","ab6bbf11e22a816932e9f3d9aa709dda2db843588a54f3f80ff4135932615e6b","a52a6356eefef4b0d526e7e2933b9f2ce3661d814d1148e363a4273fff3d3159","04d918a95b804600d92c3d901c0e56e2affe342a771d2821441006445e65ef2c","89016eb9970e49d579a432655c6e9786f378699e2d54bee7b485471f4434a9fb","75431deeb727f70e9a1b8619c30612b0624e83b4dd97a78a004f0fea60d2843d","924c13fe674048e5c5742f4a29a308c33b42576668df7b90b772e2763c0567a3","c818bd909620ff1e655de472a57d8f1d66f32a65c820637257d50eb8d2a379b0","6765b16f35c04d3f5626256700d864f0435a29ef0004840a59216bf016bfa651","1697037352813b33bcf4d10f91b33995fb41126d130156943b0cbb232ffd1394","8d181e118eb520028e822513e5f03efc18ae7d991856247d5241ff56e3087bb4","05ea93df99fa5b6206acd69f9b4a356a643dac0eb1d52f83bd65f540fb57f2d7","64e76f146c9d4ad3d72b8919815ba0c8d2e8bcfcfb5b9542dd4561af793b7d27"]
Anchored: 2026-08-28
Public log entry: search.sigstore.dev, log index 2622121140 · entry 108e9186e8c5677af74f…
Expected log hash: 551b1035d8649aa3719c4625314f5a126b89dd0eaef0d44a4d7c207189a414c4 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":"v1787896046556","kind":"published-quote","locale":"de","page":"theme:canva/service/de","quote":"Sehr hilfreich für Anfänger","rating":5,"review_date":"2026-08-13","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.canva.editor","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 (f94b7945af97…), 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.