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.

“Some features may require a subscription, but overall it is a helpful and efficient program.”

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 2682369737

Proof data

Record hash (SHA-256)

165d5f1ded53a86cdf940856341552dce802f95441a38e3e7aa34b5d783d9cf4

Signature (Ed25519, base64)

AQquGlUtAPGnmwbv8nrL4rucZoDWYT+/Zfg4yOV6Nm9TyKyesBktLmqftLWpqutvOXSvdkYTMHjzYNRjMbabCA==

Merkle root

596f968cccc56e8e000b63b9dd30489d92d97de49657c3c152b38018ff4fca5c

Merkle path

["16673a4703855dccb83f87e2acc43709fea1f41640a57f24fa08ed333acf82a6","0327edc71787deb007b58bc20011570bd1f7b4f0105ce248e085c41f34bb33b1","935a3177d16bdc2b62eead7c2e11e36fdc3404c7ea24a624bc8ea80f7caa4ec6","ac024d5d0d5f316bfaac54833e7ad54a84879443ebfa73d5694f487db876e8c9","e24a103037d764fb75532d8abfa5b6226b02151f1c6e28bafce74280c24b2af2","f8aa9ec885ae035be57e089f3fed0b7d85babe8995c610ad1e0b55c687251e02","6d3ca19fca61bd9252af4daae124d5138f2f02697c89b2c85c2a693b5385bac2","7931537fef4f90236dfe896d2c316d771ff6a564c834b10f2ac0b1a1eb91ea7e","c22cf1b414ae95f1a9a4fad02fc3c6daa4670e076586eee70b611a20a855b870","d04ce4f4ba94eaa7872c65a2896f34043801a016c321e178633901836b1c030b","46a76d1d889cea34855bb6190d99874f090f4359fdd983df40090e76b7fd50e7","a2e63b38a500e0e747fa2ee593ce640601b396a882812dccd45f6e723859d791","8e868d52b37c0ca851c758cff6792552e789a45811741cd2ab35462dd346c599","f34a99bc2eb0f4358a151b675878bdf5ad21628e2f02e9070ad22d026160a11f","1def65a8c7022796c92bf89e3ba0ded5702ff898262447be3bcca696fe961465"]

Anchored

2026-09-02

Public log entry

search.sigstore.dev, log index 2682369737 · entry 108e9186e8c5677a1ae2…

Expected log hash

21add9acab3ef5374d6a20f71e18493c941f530ac81d350c83b699eab93536cd 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":"v1788315101182","kind":"published-quote","locale":"en","page":"product:acrobat/sign-pdf/en","quote":"Some features may require a subscription, but overall it is a helpful and efficient program.","rating":5,"review_date":"2026-07-26","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 (596f968cccc5…), 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.