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.

“it's really helpful especially those who want to learn graphic design”

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 2544092674

Proof data

Record hash (SHA-256)

6ac13baae90ee4693f1dc54b3662b6d10925fa32a11386a1a6dc6d02de21a1e7

Signature (Ed25519, base64)

gg/XOSCCHRZ02sL9IK1EdmwmboZiEy0VXEnUp90wd8RLcH7Fk+2OTnKz8WGOzEI9lLAk5x4cTFKPw2KuNC3QDw==

Merkle root

fc0474f2ab9253f8c52a81a0b2f1ae382f5f022f9b54f4e3fe06eadaf19fcf31

Merkle path

["6ab32e846f3af621b926bb3015ebb63b68227083ef9b65d19fbaa1c2a3f9b76c","a45a035b402dd33cb02465641a268279d056857896c59a22636bda5b6a843b69","8e330831fdd9a4e44d9cfb69c74beb74ea798b3669ecf356ad6e5c403c8e601d","281669b90894d09ebf13c6ed3002a0991c7165c3f6d0906f3aead1fb570ebfb5","cb5e243a14230bbf6682c9a7f945e58e65fadaf7483436436708c3d15fd2698a","6e0960294c94e57e45fc904228f693b146f59f0fe6c8116ea2caaf0e73d6cfd8","7bf9f0f23603229ccd5ca7e0dac911742e3d2ec285d755bb87581b78de9f4d00","e075a611e2715ba99b3893b621fe077ee085f1a340d9a2b294e190246946d795","fde2224ad253eac9f94be06f68752b947c219bf22569a6c315dc28bd46790d28","4054dbded90df5cd8850cca016ec37c42f2b7fd699a23e95478f6cc569e5514a","f82b62ed393df6e75c6eaeebf74f077be510cc4b9badc5efbbd62a5c0df8d751","4b473519aec772c9e255916dd393be76b9639055882afbfb7981bc3d09a6ab5e","45c0c0e230e3fef68f32d677676bfb42e35f39fb2908713c2469479af7a56696","5e3e14a1ecafa84280522a5086c1c4eb7da1d2c5613bfc63f3fbb10c0768d98b","df2c1289894581f6e22c526afc719be15b70c61ef4fbef0978dff78cc8fc6054"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2544092674 · entry 108e9186e8c5677a1b30…

Expected log hash

e3ca1014bd6a1a766a29da72cd2b9f7f9c6c416fe6af720fafa94eca555dc171 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":"v1787289954326","kind":"published-quote","locale":"de","page":"theme:canva/quality/de","quote":"it's really helpful especially those who want to learn graphic design","rating":4,"review_date":"2026-08-11","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.canva.editor","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (fc0474f2ab92…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. 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.