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.

“It is the best PDF viewer and editor that I have used.”

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 3123908662

Proof data

Record hash (SHA-256)

138db0e210f91e003c34aeed51894291a0420e828e79ad276bc1887621d1c5b8

Signature (Ed25519, base64)

MdlYHnhb5dyRW7bcp2fLIbddEJqMAdmj53maBGQRG/lt6eYkL7NTryMfqjLaabeb/LVD5ukRmXY4IVzshmuMBQ==

Merkle root

c53673589b1f41937342019e079ee2c0ad1635342b5b2a41cc71894367084fa3

Merkle path

["1390315f2c688df81a54dfb24e5deba7d27787b6551ae7597bc90c78f6952b6a","9b3348c4ef15f406fa173c0f56ac92f78c1ff8a0a692b42fa915ffbdc73806fb","628d0048404269a9d61b2afb40e7994cbe30969563ae8986c663d23482ce8677","f128cf5f16d25c414f866daf1f1640a07784c411c4ccbee9039a5cbf9070e3d6","f898bf50d0da60e144ebfc18749109bf8555d33f173c02b134bdf0b93f139e8e","bb8861709884709245169989d8d76b46d14052d9861cf634edb2087545b8c913","0ead725b9bc8bbda4f1246ce7d2f731d7707c5c18a48eaab15c50b6d743429d9","5904f8088bd8fcd6327c15374dc9e57a1445c7885942c517011d764633f0b965","f0c3045f7609d67a41c390c896ea0474591880105df6d8d4508bc8e8f3b4b903","c6d9746d4987afb756d4142f8b2239c2171c1f818059038de2f6c1540d48c3f4","36b3277d305afbc3e723dc2437d50eb7a0bd34ce2b41615aafc5998b24f9fd77","1271404170528e85b2a5b8d892167701609eea201522009f6012025621f6c3e2","6347feddd7eaf9469d389bda6e1b8ff87765f8c85d403613f77df274dc0914d3","60db5b960c74a953fb3ebb541be0d84a0946a38e137e13155b739ca3fdae1b05","8308334b0715cdc2685afc133c95aa85c9b86c8dab9c8659092b74cf2783feda"]

Anchored

2026-10-07

Public log entry

search.sigstore.dev, log index 3123908662 · entry 108e9186e8c5677a51cf…

Expected log hash

5372e71f27172d067b5d688f48846b5317672647da39397abf474cf22aba0576 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":"v1791348381030","kind":"published-quote","locale":"en","page":"product:acrobat/pdf-editor/en","quote":"It is the best PDF viewer and editor that I have used.","rating":5,"review_date":"2026-07-30","source":"Capterra","source_url":"https://www.capterra.com/p/251329/Adobe-Acrobat-DC/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 (c53673589b1f…), 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.