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.

“excellent application for editing pdf”

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 2647299953

Proof data

Record hash (SHA-256)

13ac9451d8a6ce3f8a57525451fef082c6773590a09faaecfc98ce1da8bfd7ac

Signature (Ed25519, base64)

AgLtarvLnRM1zHdkrTh1yThFmIgrEBvQZqIBdl2agE5NO9meVXDX3jweu8vbH8t1+YseC1/bTltICW/hF7dqCg==

Merkle root

e650e75fd77078528aa305533eee5d0a1a546628fc8516773e724c8dbfd143b3

Merkle path

["13abcd704604d5564c0b2d4400f0c10dee890aa9939ced2993f1af943a552268","f3d03f8ec325e55af1f109d2825cdf72548ec3a1bf90c0031361addf65eac654","3c6827afe08d77513d830c2dfcd58d3281cf0a743ff6b36ece4d9cc0adfb399e","5ef5fb58e56c2bb30b7503fbf6ed93059a5329a29b449406b3450924cdd3f1c3","1fe87869bcaa9308f63a9160c6c435edf3478a5fe934d8150c9a817b83768a97","13bf89d79a1ff9da145b52d13665edd55c9eca157db30dc24c79cb56b1cb8a80","8bbc17daa3384a5d51b7f7c084ea6d0fcad7c860e0c2e6ae53f1425d1fff4974","6a7e05b338c430bc1864a897f983d8d8801e2127faf72454b2e250e3d5842c71","a53366a16414d275cc8c67b9f3b65160d113b2e6bcf172aa71325bdb31dcb36d","104b342e62250772a193e2d4f9b47cf8523c1abe2ab931a8510386ed91da6083","60721fcef94b47569fdfcb198751621ffb987befff325dc23c096a5d7bb9e0c1","9cbfd3204b3e2f5027edc155e8333a2328120eaa38808f017553940b835c0837","03229a02d4ef23689ac574ce2fdb2e91509dccaab3854dbfc8d9e90af4ef8953","de4b01acb55e434b8077712a3cea8899c69e63005b6b5c436594f06bca9b060d","bd662811507e1e874bc6ba02d614a311af652dab0714938ac7c98aadfaf42cae"]

Anchored

2026-08-30

Public log entry

search.sigstore.dev, log index 2647299953 · entry 108e9186e8c5677a1824…

Expected log hash

d76177f6a64b24e24552f49a73f627dcd7dc14dd72da9a30f95c027c24a50fd8 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":"v1788057950482","kind":"published-quote","locale":"en","page":"product:acrobat/pdf-editor/en","quote":"excellent application for editing pdf","rating":5,"review_date":"2026-07-26","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 (e650e75fd770…), 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.