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.

“Ich empfehle den SmallPdf-Website für die Dokumentenverwaltung.”

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 2684163355

Proof data

Record hash (SHA-256)

08202c93c2f957d0b493522fc9840df864b8240e25c453c06088610ae6fec2d4

Signature (Ed25519, base64)

MmL4a1lN/TQVFTn4DssfXHncRbMdWFvQify+ec0LSGq10MyrIK4dJ48VMW3HPIWLIod4g3L4Fwdt39oOlWCpDA==

Merkle root

404e3c13e38cb64105d39456b35227bf21885d8da4853edbdc28c1291169b69f

Merkle path

["081e536f3d62018bd4d72e5dcb50a0d8c5c35c2ac833cc19ddc39393817b0765","05ba07376e8d3ace885ae1c92a6f3d0ffb24356b3206d0a134b7e15bea83ba12","4da512bb1218d1941d72fb7c7635d68d3cc122f7ef5734e16d8129be06ea3b21","6152cfffa0767d39ee4d5515bf6b5d1032b0264274dde23018e0de61379555b4","c0a7e47e879d209084fb6056a266e91aeb707cb50946fbddd6e312d272095e64","af049c2a4764f45238a91189a76d0adbdcb0db859d21a436d8884bcbed7e3680","69109d1fb48c6770f1047d059b7eb69697b6ab44aafb139b3a6c80c617af5349","2316316ff7b16b1e18cd901721e37dfe327c8eacf32df61028a461ceecef7776","61351c3e30750fa1a95250684a0bbaa89409d7163d2073544be8f77f163596aa","825c94ef0a6237bbbc30bdc84240939e17310f927b28f4fa0f9f4a9bd9ed70f9","263bb5fe1d756a320f7da092b3cb67a1ad773b43ab1f099ba01e84624ad19778","5c0eadcd95032a9154ecd9aff9cf286ce38d392bb7e5263e65d22b770c6624a4","15d2e7111dd71c6ca8e6466c194f5ce08d202efe38071f7b3fe773e133385ebd","bde050f080e8537023a46ea459bb1518e1d885f47b2ddaedca03653a64f35bdd","63269a191012537d921c10ea30214f6deffddee0c8302c1d6e8c9845e6049806"]

Anchored

2026-09-02

Public log entry

search.sigstore.dev, log index 2684163355 · entry 108e9186e8c5677a55e5…

Expected log hash

4066e61b2031c5768194188ceb0300adcf0b5443c63f9d6a4476a0f6ecc5beac 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":"v1788335271191","kind":"published-quote","locale":"de","page":"product:smallpdf/smallpdf-mobile-app/de","quote":"Ich empfehle den SmallPdf-Website für die Dokumentenverwaltung.","rating":5,"review_date":"2024-09-30","source":"Capterra","source_url":"https://www.capterra.com/p/172606/Smallpdf/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 (404e3c13e38c…), 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.