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.

“That I could convert PNGs to JPGs.”

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 2594955598

Proof data

Record hash (SHA-256)

0ab7caf1957b810996d6ceb2772acf4bb109df5dc285c163c4d13643ad64c946

Signature (Ed25519, base64)

tLzPM34kZSG4ASvgEzmGrpR1QGh0lJuxe9RjGxge5Oow5kMIL4ApMKXPXT4RpDxSjHXaWNQf/BRLaL+cQ8SNDw==

Merkle root

5d9e24aa3407e67ea2f2e26a5653a6d0076935845a1bad3488d2eda2ee88a81d

Merkle path

["0aaeb61e40c9d59f41d366a85b547bfa8392356661222fe4763c0fc71fcfeb05","afa9ab1a90ca5318ce0e6ca9b9830820c020ada6e27199a9db0556d7e2febf4a","4197938960461061a5a108df99ac09fa132122a355c6a9033492c8415846663e","1e876b7b9a85295a08291cdcce468ed7cd8b021318982e3b62a0f833136b2c86","40c9d918ff7366e133b2be55d29cc9b0510a27262c0027301950069d2b92cf90","b40a9b50ff0062b7f7ca2240b9bfcbe39f6283b73d2b5748414aded1be59266b","c8addce9c5b04bc091aa3a3a830d91df53503a812e20e84a25daac7990750f9d","4d4c16355aa20148d20ca0c8482c48d1a50969626cfc88a9c56990ee1ecc66a7","bedf67807fc3891f1100fe0158a324c0c22b0e6f5ee104dc3b3aa1a7e5dcfe6a","d412571709fc9b6a18f79b910acf3c2869aac563d54c6b93e1cde41a7859e345","7e4d80c76a44bc64f31ef5c154ad341d0022071fd5dc286c533dc0a321545313","c8f76ca8defbf8ccb375fa4489c615b5d155a09a82432439ffbe5296f7a55c87","88cd2e092d86a2cce16a67d96208f41b86bc5e9926af919d175142df77f901fd","d52b5f7abb2d6c19af7e500fdba55bf56c359acecf50179e194e26dc83476c29","0df45e9918aa8c399d7782a38bada433a6ea05fc7a52d0a6a2d9fd2f836d191c"]

Anchored

2026-08-26

Public log entry

search.sigstore.dev, log index 2594955598 · entry 108e9186e8c5677aa8d6…

Expected log hash

98300f71cd632ff600fd4a8df7e6291aeb56582c5916b3a391d1e3bf72ef7104 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":"v1787717033238","kind":"published-quote","locale":"en","page":"product:smallpdf/convert-pdf/en","quote":"That I could convert PNGs to JPGs.","rating":5,"review_date":"2026-06-22","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 (5d9e24aa3407…), 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.