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.

“Es ist eine sehr gute Anwendung und einfach zu bedienen.”

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 3273084324

Proof data

Record hash (SHA-256)

1162947ba144ea897e7d50bf3ab122b1ae0b1f65bfc086bfe970429b9bca3975

Signature (Ed25519, base64)

G4CozTV+LJO3mX5Vf0/UHFr/0zrH+ldIWq9QwqNq1ldnbjKKCpJA79uDSOuOh0g8FcIj7+hcwEKj/A/Yn1G7Cg==

Merkle root

4591ccf5fcdb01ed421243d02df5f30203ce391c077d4ade1ff5ee97e69e252d

Merkle path

["11638b167dd8d0293448ab0b96d8551389cb7e700918d1ca46401e7d62abb674","a18af49dd474d4ed3dd017dd24f5bc77dbf67e9fa2dcb67ae3d2b006fb331a3c","ee7a375f5066b948c0bb5aa04b7380f09960b609692edbbaabc4ee1629532d9c","405f78030aec16222542111b1f75ff03ddaf4e06ea73ffb0af9aab6f61a66ff5","2056268117ef80bccb5748a329327c0dc77be6247c6d34eadd62e8e5f6fb5a0a","1cf4fe167625cf36c6e87b62cdcd303dfc6bfb7ae5c16cbe59d3e65215230241","121956532c0ba58c262f45a0a3008720dd5691466a125a673f413a9d4760d605","1bdb3fe7710af770b723f3fefb9718e59becc145b0848097a33f8f1b1af8c731","86bd087f6af0e9b85fab283d51850d83bcd33a91fdce350e49286474687554a2","00d983fc7254b6831c8727262155e83ed73067ee761ee10b8ea341da26f2b736","c30f42bd5edd5503274d38897e30e0fd203a58a1d481887545f4163af761a24b","152c0493178cf6b4404f105673ebfb1205dcd47946cf0dc7bed8ccf29e922fd8","d52611af45c7ef524ab63e970b046a1061f8173af77bce3332bb854291964d99","04789af0aae7a52bbc7d5e129e675a1c89df82999aa606ccdd23b89f718c4ff3"]

Anchored

2026-10-16

Public log entry

search.sigstore.dev, log index 3273084324 · entry 108e9186e8c5677a4edd…

Expected log hash

52df3e0fd214b96d6c701f5f337408916b7566fa39826e2404f759c290be1eab 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":"v1792120358245","kind":"published-quote","locale":"de","page":"brand:canva","quote":"Es ist eine sehr gute Anwendung und einfach zu bedienen.","rating":5,"review_date":"2026-08-12","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 (4591ccf5fcdb…), 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.