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.

“I need to spend more time to get to know Smallpdf better.”

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 2495157846

Proof data

Record hash (SHA-256)

105129b6c4c19b3bbdf7bf21020482178d13bf71181bc147207f081b146d811a

Signature (Ed25519, base64)

TjxMKV4DBix+fgCs+DQQpYw/BGBvnkffUdeuYgqk4JoyeflPfRlpKaT8JR3E2BP/Zknp9SNkhjSA6tDOQUkyAA==

Merkle root

5f465603cfecff8c631b83258a9f794433a9fe1f55c92c7f2359c24d5239d7f1

Merkle path

["1055f8bffa293e31267d6a7093a7aec631f1eccc49f3c01875bdbfc6b19f1b9b","4c187940d71718ecd7837de6247be7e8cc8a155d37bf4f2e93094ef1741bb989","d6dccabf4cd736ac204d9225f93c794fbf1214770e7770bf92ad2b1f9c6a45a7","6c8842c253908ec48cadc1db20384df84c36fe8f567916d7d5bcbde03b4fa3a4","8cc889b1ec60c8d860f15833c337aef271d62f13c2aa2c65b9ff2e3396d85272","00a0416adc884442814f3a505ebcc2954bc4dfbd040f08cabe8839c88e57cc35","69be2c1ebf931981cf43ddfe0b7e18ae0c7e87d00e7aa46e9a33c5aa4e26592d","bd0af9290e6e40084647a065041993cd6b14186593d17928cf6f9a7621869289","e355e40b57a949c07c5da3f87bb0a51289615440f299c01592887eda7cff3f0a","2c6fa7108d70d0fc32e7068406989e0f3d0278ff5d3bb408908b0e7afe1257aa","40c9b676151e86de0daa4cc1b529c14107a4c2c60969dd020bbd534019dd9b22","2caded3e2f34e05ae3efb016490f55ee18bce7903453e7336b0bc133b0f71bca","f263180059cdec95b93f28a9a635234e8f009df51d66181b902844414d966b85","3fb39940a6132e03e4fff826dda6ca0582558fc639bb5eb857201917cfd7b8b5","fc87a80257c5f9d9cefd8e12d2bc08e25e0ff70c414cc5debe7f697d0b1cfbe6"]

Anchored

2026-08-17

Public log entry

search.sigstore.dev, log index 2495157846 · entry 108e9186e8c5677a0eb1…

Expected log hash

3272f4e3e87c1e1bf0369f64c72e7fc63fcfccb2635eca462b023cee408b7ecd 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":"v1786935515462","kind":"published-quote","locale":"en","page":"product:smallpdf/sign-pdf/en","quote":"I need to spend more time to get to know Smallpdf better.","rating":5,"review_date":"2026-03-05","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 (5f465603cfec…), 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.