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.

“Ihr hervorragender Kundenservice hat meine Erfahrung noch besser gemacht”

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 2621031423

Proof data

Record hash (SHA-256)

09034ca028cdf4dcf2d2d359f28872af8f40aacadc9e434e39792f88478d7248

Signature (Ed25519, base64)

jsnHCZP1+e2NrHd8k84pAj8mPoJTtLTspwUPWxe90iQb/WJO/U9Uncu3yGGjyUTMStUZi4Sn0UGDE32wBhcQCg==

Merkle root

660baed4e0377456de35deaaae5175a04c7f97eefbd7e4cf12622ca3b4d2f1da

Merkle path

["0910d1cc410398a10a1979c8e4dd713574e8dd610a67add65743f21cb66435fa","b02b2fe41bfde17af969399b68afe92489d6781de11c08b0019bcbd3a0c03aa4","00df72615741e7f3fd8aca841b7e8b8548cbc93c909855694bb03e0403ffb3d7","e5eda21d67ffbb58d139ba65060934574388d8f43cd8a5a94bbf95e7a9cdd3ad","7c2e93b13264d3cddf39c5b3ad2d9dd1520805792d3ce20914f7626a3707e563","e58233390c1d14de90d6bdc0a11d6be6975f34e033460f8bd9195402b5f7052d","1572347362ab0f7f6e10c10da616189d9d0ebef689bf5f387d5cfd1eb111a31f","8bc8a3bf880197717483261607c5eef3bfa7dd709dd5b6610e9e32d5ae2ad314","919691deef476aa04bcc5b92d24a5d8c152543d7830b7a35eb3dffec6004b67b","cbd45b6d7b9f36b19cac6deb048d8590fcec4c40b8265997d72de715fdac226f","fdc94bc250f2a6782fc2d10cfdcf0cda3768a82ebd4289a5dbe49ee35409fe68","5b09628a1793be71f721749c11bc8264ef67b297fd8f81dbc29973bba2f3b767","42d6550ee6510e7a4359325f358ae674b1e4cd9ef1ca4ccfb06287ce6e66bb53","5c90b352bb5f9ab82191da9d2c3a234dfd13c825669e72561a053f4527db159f","5630fa9d6feef716b6c1258fc5eb760f694f65295ea9e96a6c74458fa17dbda0"]

Anchored

2026-08-28

Public log entry

search.sigstore.dev, log index 2621031423 · entry 108e9186e8c5677a00b2…

Expected log hash

dab7f5bf20d800f31a15ae5236ac5dbcde0614ca00650d0e0adb5266739266b5 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":"v1787882628316","kind":"published-quote","locale":"de","page":"theme:smallpdf/service/de","quote":"Ihr hervorragender Kundenservice hat meine Erfahrung noch besser gemacht","rating":5,"review_date":"2026-07-25","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 (660baed4e037…), 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.