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.

“SmallPDF has been an indispensable tool for my business for years now”

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 2483017207

Proof data

Record hash (SHA-256)

037e73ef5b84a133968e3aaf7a1d252612c7ab44b71d9e035cb5e3b160697a32

Signature (Ed25519, base64)

U4mwYZ7bgaJOi5eg7HgH0eF1jmAGnGpAhz0Pj7u7yu5037k/hAsXqaqpndaMHMMGKDM2DDG6w75+vhicznYhDg==

Merkle root

924dd80483b600ba21e68955fc2650c54fb1b237aa7e11c32fb1b306f6f4bddc

Merkle path

["038eddfc724c5cd02c79e6e0f1d8c593c0c94368b8ee782c2e55eaab3b384b0f","62a52b3c957bcfc172d876492063ba84d9ec784b2b6df63b5046d047cce9ff70","7f203541576315dfe1cc595800bb00ee9277889f9ff48e714e7882ff90085699","a998dda6a293df1fa81665b367f709ef1cb4aa03ff37d5f196bf91a39c4df729","56c4689c67904cf4a5978817847c9271d865ac425b91ec05292c7e1f6f04d51f","0f897a9198bfce141ce0d3419913e4cb9ed5fa1027b673bdb301eb4dc3ffdd86","9e97bdbd8fce94f8c895c5d082b70179bb37b4e56d89c1f0ddb7c1624abb92a6","be4246869cf24d66754b2a1df5b0e5916351da634b398e79c599e8b9de2ff3a4","d824289f6c7b84f81e37bcde4658be974626696f0311ce433c50df3389345678","d7ab0af794766943045f398c1bf96f0818a0bb00d72bcb6aa0f6614c75b82036","75237da2978cb38b55665e4ce9fc9a9bc06c0fd89f20dbb3b19c77574fb8a18a","17a90155f01179dab01e079301b882fb39ae1bc280f8447e386802513db5c2c9","b2c0dcf6106a1f67377e203fafd26ae03d71b242c90ac43af4118fe6d142f3e1","6c47dc57ef64520d11e9e14ccc06f9275f37345b3c22731ef888f0abb3d98fe4"]

Anchored

2026-08-16

Public log entry

search.sigstore.dev, log index 2483017207 · entry 108e9186e8c5677a82b4…

Expected log hash

4b816132046950ac556210cc5233cd7ede4cb3c0c86d542780c32b53f564272a 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":"v1786827975256","kind":"published-quote","locale":"en","page":"brand:smallpdf","quote":"SmallPDF has been an indispensable tool for my business for years now","rating":5,"review_date":"2026-08-10","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a7a25a9cb5fb18cc8ed58ef","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 (924dd80483b6…), 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.