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.

“Ich nutze Canva seit vielen Jahren professionell und möchte es nicht missen.”

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 3273402563

Proof data

Record hash (SHA-256)

252ab8f216338cdcb602705a81bbf205b3c1735f88c8228df8aa9630dce52103

Signature (Ed25519, base64)

9KQwi/mPFFG4KMRCKxOnK7RvlokbAzAeycfkJfQltswaZvgcw81BaSjSWfksce2tvjN7/LZvs0J0kbGczzQxBA==

Merkle root

f157206eaf0681e32c282b6c87b482d5b05edc0371242c4555dfe07a805d46ee

Merkle path

["251dfdad05fc535e13393633a25eb985105acf6d788a9d2eba6cb701eb7ac9b6","39517a18212e65c8dee44376f7e6bf4f071aabd1b152f6bd54adb38f76104e34","3ac9fbacde6dfe38d54e08ca8f36f8526f55003ada7137e0448bbd7052137ac6","4ad920f9be7e579572381bb47665d6683829494f8b37e628f4461097885eadd3","71751b5084eb422ad9091d5017da34cb2e5e791ad535189c09213aa5ef396989","f79df2429d47b8150885ed6498b303d8b2ee4cdcc6af9a3dd3859b85868ff25f","92c35bceec249f786fefae3e42aa35692c58343ac01f07c30d1cd14ef406ea3a","86478e7078102c69d48410eec0c25e1bfb84aa51d57304d59856c83cc9bf8d2f","5ff6f798c63fcd2ec9ee52441264f4d2831577345b8f4e3c2b4368f43c09ccb2","8abf25d7b44f5105053f001774e2c224b51db2eab044348e2f06331eceff8f03","b76ee18cb88fb0eadeb62b2f78cbf13da6d3fda1e321c45e4448f5580f333312","c983079c81f3fe3701fa74b1f3d07ba4ae521d2aa67e53391f4fd7e312ac9423","18d3f68accc8835a5c40f0c374bff5769347a644756ac8ed830a1459ec4a0187","72cec015fa128b419dcf741d3ca687936e9595c259ab78dfd4256d8340270e61"]

Anchored

2026-10-16

Public log entry

search.sigstore.dev, log index 3273402563 · entry 108e9186e8c5677a6df5…

Expected log hash

d39be9954db9139b182dabecbcfa2b9510337ba2b23ae56a3f9ebed18578385c 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":"v1792122859337","kind":"published-quote","locale":"de","page":"brand:canva","quote":"Ich nutze Canva seit vielen Jahren professionell und möchte es nicht missen.","rating":5,"review_date":"2026-08-04","source":"Apple App Store","source_url":"https://apps.apple.com/de/app/id897446215?see-all=reviews","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 (f157206eaf06…), 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.