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.

“PDF document management made my work easier during my job application process.”

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 2631896876

Proof data

Record hash (SHA-256)

0a9117671974d08cefd4e1fcdf26e453c333bf30b6e91196f6e6c57fd1deb4ee

Signature (Ed25519, base64)

nE1tLSh+SfufzSPMEtQi6iKqPnspothaGiYouViD+iC/xWl+24v72EzY1XLnG64vunBnAQC7YNHTLPXrtffcDg==

Merkle root

4553ceda64e0f7e200f881e3be80f06ad7ad366bd41ae2637340e201b97fd992

Merkle path

["0a8d88661fc8c35875cc23e7d0f9d7ea3b10a1ee9436e81f65cdfa2374f46415","9d4abfc10390616836b8facedab7fe5fe6dc6329f6e93e0320702fc7e2f1caa5","4bea8447b229934c8fc61742c511d0e8f67e7a4d02e08495c170c9562fac8fbf","171392cc462e5c944c51f5d96edfa13532597c566ec924d010eae250ff038705","8a8389a1d96e09cc1ad1d5bdc91db2dddcb072efeb20a240053dbe94fdb909be","14d742fc56e5f307296e8457cbaec80a09021e6ac49547b385c4862c2f70b3c0","db4e303a8efd843128971bc003acdb88833e9e5dd22d5bb155c86c188faefb3f","d6c04735b258a6669c97bf4c08d09616714c835e4c57d190f0749deb599edca8","22347a0ee3f7ead0f9b32c96bb47ba324a4364d5af1e5cf373311f395c2cd113","c2c73697d624f69da5f5d439ffa13cb5b4c4a27d23898a0b75f9d91be3769ea9","bf907ab4e3e8bdc4fdff06792edd0cf49bed8f19e7ce057c3d16888d39ddd9fc","f9c3d44efaa3124514ee4c64b3279841948ff3e6efae5d5c9176edcffb63b0c4","1b9ac25bd72956239649fced74f841271bb5362800775be62c8a4c65a89114b4","198676edee22eb362b9f42be6e45e0c6688564326d7ac8c78c49d4b535692f55","a8f2b1eb226c55ba6a50b4f9e41f7daf82ed22f31e84ebf68e8ca69f1d094df7"]

Anchored

2026-08-29

Public log entry

search.sigstore.dev, log index 2631896876 · entry 108e9186e8c5677a5ea0…

Expected log hash

82d6416ccfaae92d072047c1941611dbdc6106e011bca285ba92fc51ad50f4c5 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":"v1787970342088","kind":"published-quote","locale":"en","page":"product:smallpdf/smallpdf-mobile-app/en","quote":"PDF document management made my work easier during my job application process.","rating":5,"review_date":"2026-05-28","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 (4553ceda64e0…), 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.