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.

“Adobe has always provided excellent & clear directions”

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)

6df9f3adf2aefee2e973d5dbad802a6961825b0aa6714f61728d95221bf3c580

Signature (Ed25519, base64)

jz7+K/ruH3HCiBNX8t/XifP6dErHIoSxqKvmpl6uJHKpEauhTPiEFZkZvniOcccWEwDq8I3kpwM+3TWrYgSgCQ==

Merkle root

c69b412346f0db8d88aed17dbaf2e4876a3743c1c4d16fb306ba56b5c0573123

Merkle path

["6dfc8e9dd305d7e4be9b665ac1e07ce3bbd52576272926c21de1550219ab04f9","f155814f80877590dff327651d8b73e3a570766b6ae97146c1b3de22b2bb771a","c1e49afafb3cbf4dbd5314eb56fd110c5be597a12ec535da262d2dc89153d609","ccde10d0b26824eb8061f7a7850fb34b73714bdc780399b5ea62f27f4a78b2c9","f5719ac5dabb5a4754b6acbf6794a7235d4e27e53ff6615f82d40abc9164f44c","b9b4200fd6ca9357753c20c181946db3b2d3077104805a592f816e8955952ffa","690d3d01d9d51d174197877f9f52efc422d68216f52d4616b940ed248b1dd911","90bab6149a181f44b4da16e92d3565b404ad92607bb226d5d08bc984dd4daaab","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":"theme:acrobat/service/en","quote":"Adobe has always provided excellent & clear directions","rating":5,"review_date":"2026-08-03","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","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.