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 habe das Formular für den Widerspruch ausgefüllt und keine Rückmeldung erhalten.”

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 2633155673

Proof data

Record hash (SHA-256)

1a4d2f6b743a207cfec488764ffa0f46f848e2cabbf4ee946b537a1720d17b87

Signature (Ed25519, base64)

L0M4jsMtgGBP9l1YqvduaofMywbb57UCd/y/l7wTnhAo8HEjoqFULu2f7SKWqx6JBHzg/sorJuNeRywoZEABAw==

Merkle root

a5d88709ba617fe812c94d00606cf582d21e964e3014eeed21e24c3822682a40

Merkle path

["1a4cb86f08c21813e7f5ecdbe7c45591e9b3e9ab3da9ec2ebd6e956eb80d343c","77a05c2d91be0ddf1db6764cbe2efc64c37e14884b567c95163c046fe1c8cbb6","c857109b8c1988e9eac1dea93f63fce30175892075dea7c4bcaad602a1e0ba24","00a12e55f5d2cb08161f1ecd00b9c5a04dcb7fcece4f9080b2201dab3ef03e28","8868d14d0a2ca300d1b8e820d8bdd57d7b40963026e051ba8344af990cf5f24d","c17bdb9ed2d6448a513e6e246f409aff298a0269dc58260fe440b8616c00c441","a6cf1cd1cd754fe7fc8f8fe91389c5835fc6cf0f59dd7db1ba62fad728674303","43720fd265c5f4614ed6fd9f1b2a44d9feabde890450650d8d04eb58d100f100","ff0ecc2d0d3681aa0a3611d500918bb0f990e934b199cc295de2537180d82a7c","e9d617eb04abceb3058d0a6ab6ee69e2ef7af4db5317fc396a068b955cb02f0b","1a91b0f8f6623e2990f82bfb2c4c7df8f0cc98ab5dd5cdf724147ced16e54566","a599cece768e4586efa0ee0f2c791805eb938d4b8546bcc3665b48ccb92f614f","7b48dcfd125d0832bd7f5a9c76821165d9d78970ff8029ee47dac7ef938d86a3","aa514b327a9841f1a8b8f1ee34db42dc890d9a3d820327c14f52ced1df128a39","33e990fa14b58c6037d59a973c8935635ce911b2e7d4249f5e781ce19fe14ee6"]

Anchored

2026-08-29

Public log entry

search.sigstore.dev, log index 2633155673 · entry 108e9186e8c5677ac961…

Expected log hash

59d0143474a5e64649e00814367477c4772bdc0867286cdc45867421d3d54959 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":"v1787979141339","kind":"published-quote","locale":"de","page":"theme:canva/communication/de","quote":"Ich habe das Formular für den Widerspruch ausgefüllt und keine Rückmeldung erhalten.","rating":1,"review_date":"2026-01-28","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 (a5d88709ba61…), 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.