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 2789279696

Proof data

Record hash (SHA-256)

15820d81172503e56fb606b7d410c1901708f90460a6a60980049b902380e6b9

Signature (Ed25519, base64)

pXdvYyWwWVYO1Afm5PeY64v2mj8pLVNy+pkf50L7A5cHvdChjx/eIbtGiddhyx3oynf8iaDsj4uGsJRb1JM8AA==

Merkle root

97eb1062a862b99998bef0a84476eb3c3812bb77c2cb927f4fd2933b59da9e3d

Merkle path

["1582ac65c4d7ac33d36b7ed5d0619eafc246009eae344dedcdbcff289b54915f","72127d51779af89cb07633dd858987f4aa1ad5fe38bafda21a3987b068f51bc6","a160f33551d8ff03093580b46628d9eb51f8443dc4234df41f2abdc50dc716dd","3cea2e882e2580b27d29220afec197b5aa2cb477a911b7031d3b70d53aa8e8f5","d9d36be7efc48b47e71bb46a834b83c3de18305d94cf027e919567f3ca5acc39","5b470db3c38c29af9affae28f80807b0c919d95c4760b67d3f6e6c333e34fcc7","552d01e2ce91cd7d6d562f20d912c6a10f9f0a1d7284ddd22901f23013fd34fa","adb7e17dd55ad903c150fba76acf8ae108f5a883d952af9cdab1a033f93d477e","71fa99dfb7af1457fc6004bafa49530dce25da62cd6d2573fe039660d23560ff","395b180c77ccd11120a7cda4cd1dd93f02a32dda4ea752d18370c9990eeea689","3debd39a24af6852066a31af419923ca1fb9349fdf8444f76aef62b0f9a98230","7fc459298391904a3838099fd1a0b7e635c26503d7f861328c446e440a4bd8b4","5b47260d99d2c4ad6e0d963995c990c8506dbf10eb0b146a116c3fc6ba348071","a9559f2ca8536f2c18bf059f3f0099d62235a93ac35dc17b09967d392b72be7f","01242865574478f13dcf9d888236d7a907264abdb87f360db7db06de0945075a"]

Anchored

2026-09-11

Public log entry

search.sigstore.dev, log index 2789279696 · entry 108e9186e8c5677a3885…

Expected log hash

05c7009ecf7ce5cf315c252c2a1dd135e64989a02cacdaaa3c5a87412a2e921c 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":"v1789017464005","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 (97eb1062a862…), 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.