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.

“Besonders enttäuschend ist der Umgang mit dem Thema Datenschutz:”

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 3178600936

Proof data

Record hash (SHA-256)

0fd93eed425db31e56caee6e5d142ba0674c0ef6c7902a56dc5d05706907d85f

Signature (Ed25519, base64)

QT0K7pimVkew3RQJq1wiHD979CLOpc5YmSbWOv1wt95KoygLgypzKtYEIDTMCywdgPLJKX6kUjm+4iW5mmZGBg==

Merkle root

eee462924587f8024361bc8d60043805cf5210f8bd2ef7667df06d093552f9e6

Merkle path

["0fdb48310aa6fc7b7ba3e3f8d31e710af6ef5f1741dacb99245f3aa974b18dd5","71aab2dc05ff1e22cb2c2db42e9ee5d0b448349880696526c16e35a8f5b4a9d4","84f3fd07d41f48f70c7d4cb46a23fea3042f021545dd4800406d2fd970d562a7","42b697cf55d67eb02b07d952872a16e6517a5f62a0acccd4e7a9d409a52db03b","8ce776dd1b67a3306761f95f6cdf4b992bb92b0d3c9b60e6a19d01a3cda78514","3532cc31952e16adf39f9f1b7199c4dc427aa1684a75cf772f3df551ba99ffaf","f77101549a1c44384e0f4bf353aa5166baad31fc8faebb582b2fe44b7fd7dcdd","4732e52d3165faa1bd23ca0047c76a2e08c109f8c52f3220b6eeb50f09899afc","9b92ccf77fca9312973d08e790f1a810834377d5f8c84bc931a0c91263e86d2d","20a37ccf641831a9cde6391a8767c719e3b5eb50763e7c22c62ef827dc8a1f46","ce5bfcf324b9314a59d413c765341b50971426d3ef6ecaba0e4b20b7996d48e2","9a818f1045e037b5c81556d7f6ec6165a24143565f78e16f2e84828d0670eecc","2671ebca141255a0c11a3bc51354d8cd008634f7e59a58a3f3f9dc756141bb9c","a445a39a48770a8fbc5d87a405ed660d401fa810eac6fbd1d284a96f8c7d5503","452f4fcbca19997a15e6a6869c50e026ff02cb90a6ef21da106ee0457e55941a"]

Anchored

2026-10-10

Public log entry

search.sigstore.dev, log index 3178600936 · entry 108e9186e8c5677a6a91…

Expected log hash

f3dccf508afcb5e89d56dabc8c5aead85de215b1b896d057d463ea1c1bdb13a3 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":"v1791606586319","kind":"published-quote","locale":"de","page":"brand:vaia","quote":"Besonders enttäuschend ist der Umgang mit dem Thema Datenschutz:","rating":1,"review_date":"2026-08-30","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.studysmarter","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 (eee462924587…), 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.