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.

“Die einzige App, die wirklich funktioniert, ohne zu bezahlen”

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 2670833107

Proof data

Record hash (SHA-256)

07e38f9ac97f0a89f1ac8bc1199cb23f584674c2074654b3edbb230e9994cdd0

Signature (Ed25519, base64)

S7eMzvyr5X34s60IkZ7TBbnBOIt20o1XtcH/cgmmOsCCviBHWcCS265gOiIuCIaJabM+sQY7V8DPMYuG5bxVDw==

Merkle root

37bab7ab6bae92a907497e5a4ac9fef6a8cc674cc365cd962e5b33be029217d4

Merkle path

["07d93f588d1af755b1173727fe836208f09d12a99a43d4b89aa7a0227318ada4","d804d5b74abf43c9629e3d72d7197019e61f0c7f7a3e4ee1ee979f6bb9813c1a","d8f71082449bde950d7e777915ac696634bebb2fc4c8f38049c587884ebd1021","97e87ec780c215ceec8ecef257ec607d1a85b1142044fe9783275b14a80cbc28","dc9dfd1fb1f5a9f04b70ba0b47572822e73a7f7a71a1dc27285909c8951dee12","27da9527b77953e48c0e321010093f87a09a42c0a3fc9a93bc95dd9a3af93b86","ce42e60f0a92df4a747f7574cacd8e5ca77621fc70de427c7dfa7dd70e21376e","8d6cf7ca47d4f339378d5be3c13de75dc73f419826fe34d5de164c5d803f13f8","acb2188899d36cff898d8a62de0e2fd62309f1a91064508acedd9c2d7cbb93bc","4cb8e8c16f7afb500f6bcb4b215c1712e4f4cc9fdfb57b469143595632c9f51a","a6c31f8706905d02f5e2bbe136b8966e1df98326c3b6108407ad860b65257d39","c9b120504e13ebf6addbc5122cbf40e7c38191056b31c8b51d2732241f152229","ec831a88cfac83431928609cb4878ed5619e6065160f677d7645e0479a63a3aa","1c8a8edcf77caa5fc3af0401d1e3fed2c8693428493c7127f3e51eef4f9cecba","61a69baf0202b9bc9628f4c2534169a082ad6e9020746ee3a84c82ac414b68ee"]

Anchored

2026-09-01

Public log entry

search.sigstore.dev, log index 2670833107 · entry 108e9186e8c5677a11f0…

Expected log hash

93b6693570baaa3e2327aa4b03aa01159ba10923124d4cddbdc139f813f3f422 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":"v1788230822517","kind":"published-quote","locale":"de","page":"product:smallpdf/smallpdf-mobile-app/de","quote":"Die einzige App, die wirklich funktioniert, ohne zu bezahlen","rating":5,"review_date":"2026-07-15","source":"Apple App Store","source_url":"https://apps.apple.com/fr/app/id1485259500?see-all=reviews","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 (37bab7ab6bae…), 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.