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.

“Sehr cool für das Studium von Wirtschaft und Management.”

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 2621712605

Proof data

Record hash (SHA-256)

44c22c9a30b12c007021543819aed3582f254681fb7d9549436a6497c444e9ee

Signature (Ed25519, base64)

qIt3rkjyjjPhyKt2Hk56lZmmDOuTBs1f6LsWIDtdmb4gSZTIXTkJBHwFYkFT7gsprN765fQz79FjYj5fik7GCA==

Merkle root

25b46ff2419988f674720a0d9957bbe6130bde21af352d10a6eb7fa1bd87b90b

Merkle path

["44c01820337f931f059b48b041a508ac90c77a304d4f23baac13aa9a2375a360","44d8a16725ca7656aaf2ac64b91f0d7b1d5f39955fc60817b12974f0f3d4e479","cff0e9e124a7b056572252c377dd5789d70073777102218520ae3b7b07e82e5f","53e2354d7f4b2f8bdbe4ccfc384ff641d8182a20c0bcd07c05ab09167c425cd6","2aaa542deded7e16e979d3d954b234b623a92670e2261ad8650c2b7789f47994","6acdf8a78978750ac99c6668466ce4d39c8d424f1d463276bc5301e2f26b3fc7","842a1771986a714ef69cf5f3f11a1dec6fd2619b5e481b2ae5df2c61ade21a41","f14e8f0bf0b224a869fad33e4ec8501cb1abd99d6336b69c1573f0af0d851f58","5c26dc5985216da31ffcaf85c0e1d1fe1e9258ffd5d6e2c8ac819ce1ca16cfa1","cc5d52a1d352c4539f48a3623e73ffcd2e6e43343493a55990d1650af46e1fa8","c13014fd9e1731f18b1f63bec4912784b9d0b7aa7bd981af288dd36a44ed6cc2","64c593aae3f1defe07871734f8d29928a9c8c1bd03915732282ca5c25bbbf816","4882e8c641b619591947368b39b6e39e539f4f7b40c4323a7689adb41606ca1a","5d4fccfce6f7964a21f73dab907adaf1b4bab75dc36256f7e7c2fc9e80b93292","dd8f1dac20e6d5f290eec3d4a0a2acb8f82d36d90a7d470d163b0eb872b09e9e"]

Anchored

2026-08-28

Public log entry

search.sigstore.dev, log index 2621712605 · entry 108e9186e8c5677af8cf…

Expected log hash

e2d66cf3e23cbd8a996b6d44d305e387793b999542b5186c00c4ffbadc30715c 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":"v1787891207850","kind":"published-quote","locale":"de","page":"brand:banana","quote":"Sehr cool für das Studium von Wirtschaft und Management.","rating":5,"review_date":"2026-06-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.banana.banana8","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 (25b46ff24199…), 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.