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.

“Fantastische Hilfe, war bei Bedarf da und sehr hilfreich”

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 3637411721

Proof data

Record hash (SHA-256)

0255a8e192a7bcf6a8a8964c43c28eec639e21fc9ccb939e4796d50bfeecc932

Signature (Ed25519, base64)

t3ysVHwLwqGpAdZa60/siDmBY+B24mIHBLrcqgzaHMVLcwACj/edIEjjPSCdsnQ7uEzn7smfhUZuBlF4oVbEBg==

Merkle root

7533cb8d8c04dee23596d4ccf0908b735d91b81fe92e605e13c527ecb5deb2d2

Merkle path

["0244a9aa2a5a8a7de7c4a09dce98a628a02832ca1f6aa8ef6802035423e7a346","880178ad957aa297a224fe80ecfc17e06842df1bca2e2e96198496e95ea23e99","971ad5ac391188261ed7de3e37976ae4773651563cacde11502629ce84fe8fc6","2b809ec92dcf3a3f51974f93ad5899172205825720d704455d908dc07a359a02","667478c08cca84c7a2fc5eca23768216ee90c1a9bafc2f08acc413f38c8bcf46","eede7cda24a3612964aafb12201b5e5e2053aecfe260a8066273be646c101cdf","3801876260ee4f4e23a9f294f0fb81b24dba30245b179cc7d682fb72e5ebc941","7eb10e746bd4fbc31ace1084e9b9458ba8b7ecd0603ad5b8adb7de64ea97a74b","9ee977bb8e258e0d27ee0b3d5ddc7e83709723b1110cee009d68b13ba9eac3e6","25ae60a8f8fb330d6cd23a55bc8cefdc4a8315b384c8339f064084f66e46e400","689b1a284b8a44a437da2dd8aa35cd28112ca06294eb8fb9f0e9f43b406135c2","959618116f7bff6ed2072830f64b1ea0f4df8a2685ac6da49d6c45ba87916262","93bc8fd7f71ba29ff353e3337a18e3fae8da5d9c75f2209b2b67e1af3660ae8e"]

Anchored

2026-11-02

Public log entry

search.sigstore.dev, log index 3637411721 · entry 108e9186e8c5677a3165…

Expected log hash

5dfee0cb2ef036a9452adde296e783557348142e751437e8895b161fe04023f3 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":"v1793587829781","kind":"published-quote","locale":"de","page":"brand:smallpdf","quote":"Fantastische Hilfe, war bei Bedarf da und sehr hilfreich","rating":5,"review_date":"2026-07-20","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 (7533cb8d8c04…), 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.