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 a reliable and convenient tool for creating, editing, signing, and managing PDF documents.”

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 2525010456

Proof data

Record hash (SHA-256)

6d17fe4d37f3b3a1cc04831c997b4ccfdd76466983a7a72004bc0e5d0da253f0

Signature (Ed25519, base64)

UEuwf99jkQTVqeU8T5I2srVx7jfzlHUAEqBtEnSgbNJhBVnqms8kKYwXRczLc5zUclcFmqykBbChejgo+WWfBQ==

Merkle root

c69b412346f0db8d88aed17dbaf2e4876a3743c1c4d16fb306ba56b5c0573123

Merkle path

["6d1937d6ffb49d4ae665abc52d62cdb3e060e7713f5cd1821cfccdcb744a31d3","40b9717bef1c57f83f7dc5b2a83e9a8e84c803c1f3771deac33c3f55002b6ff7","85cfc3e48dc0ffbc745389b5947bc796569770611df54c8eb41b027a672f2cc6","9b16f105ff2405c88691611294d91c4fa52e837a18d6c3bea4922abaee8a8c02","cb8172046594d5d6f3b3c988653a48cfa3d8444b460b96812e3ebfb6c2a9be78","12f87aac4a3df60a38526a3e126632651b444a5a4ce9b553d1cd7b77db9584bd","dd637b6112ee4f8705774be6a7816516e499201b0dbf2a8bcad7600a8c1104c6","968b4bdd98bd2fda4ea51338a9dd930c8a3791b6d87d1e370fc0ff976b3133c6","947e9634436a4b1bb974ee0755a47789d64f22364a7cf5dc70d98f081e503b9d","57cea0de3feaac1bdfd75d5a6a2229d4b823ca2ac673b2567e79faac2bda4f44","69542b6bed6efff3291225f962d2f2f1434a0b81f18319a5b99b27e44ee75316","b9412849d9d6bdae9bc716b14566deaafbebd8e51f6741fa3712d78fb28fc74a","ceee0a42168dbf7fdebe6a87c18868b362d983067ee9d54459c89ffba781dde3","7374897de84b1f86ca0356b906b6c1bc842b8a45ccf90424df2bccb9b7b03d1b","3da38b679e2392986aef224a332d14750fb3a22c4e75287765e8f68f575f24f3"]

Anchored

2026-08-20

Public log entry

search.sigstore.dev, log index 2525010456 · entry 108e9186e8c5677a4287…

Expected log hash

659be4fcc7663b2dc65a53351e16497fea44ed9ec8aef1f3c48c8e452b350dc6 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":"v1787194832011","kind":"published-quote","locale":"en","page":"product:acrobat/sign-pdf/en","quote":"It is a reliable and convenient tool for creating, editing, signing, and managing PDF documents.","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 (c69b412346f0…), 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.