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.

“Für das 7 Tage Probeabo musst du auch unbedingt eine Zahlungsmethode hinterlegen.”

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 2754384098

Proof data

Record hash (SHA-256)

09c1a880ac75912a5375d3070db080792c3db5992713b8d0e912018ca063d733

Signature (Ed25519, base64)

nCtK9baubzsPgjpxB8VeRdCNRmG9Mc54nNl7fY+3GT5MBwZv4LIZelD3A88ZYax7SH4KbbjYmDtJtgvpRTaFAQ==

Merkle root

2465e26c4b328756360cf3c8bd618981f983464c9d48c736d4fb91963c7bbf37

Merkle path

["09c03c9764e3a835e38a6dfffb928e95cdc560e7e9d2369c223ae3189a80293b","e4494fb0a60d31d09dda3697a7132124da085066f715a446bd7324ec385b4bbd","16a213801e855eea56de89870c556395137416d224d6327015ae028becd27993","d290970f8b6e8fd86242fd2702887cc794afff508c7bd8966fabb7436dc3aa61","7e2a6d30ee3ef753ad4f3997d0c51af0c7ed962ded5284e8ff7305fc52c2ed36","03c3ea398c1d292df4b6b6c89b2cefa0665b27c8f717918ec36dc2509651e6bf","a9867e0fd90a89b61b8d3709e7cf426118078cdc17121a657e36d02b00b85355","44e9ee4087d49b54a2b07a5734e22a15e1d6fc792696adaa2b4b4ca462a679c2","ad3eb5fe3bea801f484cf22a4d1731dc4e34ed0314bcc217ac54bf35b71c8129","b0dd1fa0324ae6a6c15579e52392a190a134504714ad80e38b4d6bed6d36e42c","96023439ebd747b47da04265b41a703c955583126be7807c9c073922d576ee55","9378115f66500a2df8a392a7a6ea2bd88e238965b0c540b993b31f3ca68bcc61","890a1abd2d97e7629a6c3241dad0830561cf775313bf20b0e0198372a65fee85","9a0d3502258f00e9b24fd47603847077e05b6024ab65f18f18ec973932102f2d","e3610f98da8c8899ed04a68ebce82a0c000eb56ae4f4b5310bda2678744b0012"]

Anchored

2026-09-08

Public log entry

search.sigstore.dev, log index 2754384098 · entry 108e9186e8c5677afb21…

Expected log hash

0b88e9e5312b5a2c365a5b5596b5d4c442b848d1dcad6ffb77cccb8d8345855a 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":"v1788819235128","kind":"published-quote","locale":"de","page":"brand:smallpdf","quote":"Für das 7 Tage Probeabo musst du auch unbedingt eine Zahlungsmethode hinterlegen.","rating":1,"review_date":"2026-08-20","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.smallpdf.app.android","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 (2465e26c4b32…), 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.