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 is a great tool for anyone who needs to fix, convert, or sign a PDF without dealing with bloated software.”
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 2495080079
Proof data
- Record hash (SHA-256)
0347268663c5cae3618fd95b8c5c3e54e6b9f545bd3f3fe38c49565426e3f706- Signature (Ed25519, base64)
qjLyaKklsFLqcrJToJ7MqbnwpygkSt/W72HGYWycp/d73S0F4d4vm0HQYfxOhUOPlEOqLD528Bw3N7KIySn6CA==- Merkle root
8d67e2bcf9805e0b1a8df77606b15acf66159247f8bb79b05bd35275c0fcec76- Merkle path
["0345f1c002d489ab9012ea5aa846de5281a915fbc3b8986db59347fffe708425","52c9add615ca4384ae977c62ce2e99e59f5cdae38119d9116731be50ec287364","1deb521a2700d4d6398391fae22c40ed5e3c81437efeef6747971328843e8f34","5c149e2a265c87fbaf99f20eba3696dcf55093a996d39414b4483460cf5711cb","90ebd8466168791a9db47db91b0e4f069d5b65c1da941821af3606478d2deef7","bd55e34f589f4faebf31f9e4c6c6ec858039168d74f906f0121ef8134275b870","7d611cf7363702636fe3761b49975cae1eef465c780a0443d2913e006aef65fc","3d044abf3bd75a4d8142563cdce367f3ff7685b1a8200abe95ca2e9b951541b7","a7807c03f57e0aeee7f413ac6223c6aa555519a34bbb6125ab2bba2a2e7f9338","8651f9bf29739c3e02834960e8531941a3672ca6243a5551160a97efceb70f8e","89370ea17943e3eb2818e38de3f5f9675c5714c93e4d5652d2828b3fce3f30fd","c204b9f0b5045b904278b9df34c4b6cb85a34137f32075ba46c7fa134871125b","b8340e6c18b4d1588710ef3da252a97aeadf8b81e38e5ea8356de094261397c6","ce0b10b516be0e5400d450b53fe2e6a69c127d4d65cc0d30c91f36c5854d14f9","97e661a2eddeb4928d5775fd03d9ccf894e37679b396aa55e3f5afe96403c473"]- Anchored
- 2026-08-17
- Public log entry
-
search.sigstore.dev, log index 2495080079 · entry
108e9186e8c5677a381f… - Expected log hash
-
8f1bc5fb0544d3d4a0f1a678042f499dfe582d5da406706275fbd6afb0904596The log entry'sspec.data.hash.valuemust equal this value: the SHA-256 of the Merkle root string above. Recompute it yourself from the root to confirm. - Canonical record
{"dataset_version":"v1786934111436","kind":"published-quote","locale":"en","page":"brand:smallpdf","quote":"Smallpdf is a great tool for anyone who needs to fix, convert, or sign a PDF without dealing with bloated software.","rating":5,"review_date":"2026-08-04","source":"Capterra","source_url":"https://www.capterra.com/p/172606/Smallpdf/reviews/","v":1}
Verify in the public log
- Open the Rekor entry (pre-filled with this proof's log index).
-
In the entry, compare
spec.data.hash.valuewith the "Expected log hash" above: it is the SHA-256 of the Merkle root string (8d67e2bcf980…), which ties this proof's root to the log entry. -
Decode
spec.signature.publicKey.contentfrom base64: it must equal Citatio's published key at /.well-known/citatio-signing.json. -
The entry's
integratedTimeis the independent timestamp: the root, and with it this quote, existed no later than that moment. - 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.