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.

“gut zu bearbeiten”

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 2514341362

Proof data

Record hash (SHA-256)

691590b4375e53e9f48e3d133f47efafb6b17ce5be2fdecd14e1c82997788cfe

Signature (Ed25519, base64)

98MJ31oOJfvy3m9oCd6ct3YXdgfGo+Q7TOSrywvrcCssBclyx8MVoi4991vIju8cJ9QyF00AcOYTNJv3P3eWDg==

Merkle root

2cd516e344e4be63e12361494ae610d89d15708131c24034ae0c7b134b8bcc53

Merkle path

["69122f3f834133d73fb03851d4865e40b6952980d12985d758ff83f18f61831e","71afe64a6d1c22e025d6b2280b3cbf3eabe0eba9f2732aa7db87b0defe64c28d","48f8c9a61ad06618b963639dabdcf3723489623e2e64a02df9296294d3f6ef96","2c1b5d0bf3bc13407d45e22e9027d0da2f59cebf531f0b05389182f1fd2b2baa","dad87fa2e540944c002d891b5f8c41f1ec2ab6c3ee8209ece459a80f4a156d2e","3aad71c5a06d0956fc74fb81b0ec79c1df4e3e209fd08b8903c2c387a51c4c30","ea74ffaab154aab94127442041b9173a26d2f7f649090b4f5583735b2a0d46ce","b63245d526add138ec519873996bc82d198983144ea0bb76169d28eca021a868","89bafe99e58a205157f13c0ba1da4d13b05a4871d74fcc11c410a8e4081b8ed7","fedf95cdf3a9f3f8913d05a3cadffd6cccebf5199f93dcc225995c625ba6bca5","ab83ef14b8f7fba53dd9055a2d1b796975c008aa70b9e5a86f6027e0729ec3d1","796cf9ea108b9a9048baa6f78f1315b449d5173aca6114b571a48a18d03a2371","1ea599b4152d264cd8b482e9bcc303e2f6987750c7c2b5a87cca39f2b78ee024","54ec8fe35b61032acdd3a795b276aa22207de669eab4043c431a0246c2258612","22334ce08b4f33f031252a9b7a089423436312a37092b6e742f7471c7ed075e3"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2514341362 · entry 108e9186e8c5677a67a1…

Expected log hash

81a850cd5c32c6b6ee86a2774571659cf829f205adaa17a6b9e9a6f5bef7642d 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":"v1787126744998","kind":"published-quote","locale":"de","page":"product:acrobat/pdf-editor/de","quote":"gut zu bearbeiten","rating":5,"review_date":"2026-07-10","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","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 (2cd516e344e4…), 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.