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.

“Other document apps do not have this issue.”
Google Play · 3/5 · 2026-08-12

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 3199819547

Proof data

Record hash (SHA-256): 18ca3e64d867b6d128411ee71c061299e639d6e694ae28649ae5b6a2020bea45
Signature (Ed25519, base64): 6YLzrHOQmtBkEJg+F50VKCjSF4HJjWiE/4KAff3A9UhDDWjNpLXg3+H+yx1u7iM59ie+2fjMoBhiaQpb5NCWCA==
Merkle root: 00eb1252356f6576712ea4fb614a5236163b3b1821e2db4cf332fa9ac5a6c4e3
Merkle path: ["18c9c82a202b42db91ec60dcde80a80b7ebd90af0eb43c90c92ab78b378f8bfd","f2ab51a6789a7f1b9c55015d047b7049a580661d8f3a3b9c4a890b497d576878","7bf0cb28f57078792c34513590abc7a63d07be98d8a50703bba516f641936a33","22756aabbd24cbaf613b73523b0228efc7ff63fdc686e0143f44cadee43a304a","94f5bbe36ea80afa759cb3307177f1a50154cde5e39b75d67ebddaa3a3f28b86","7fc34c0a166fc4070cdebb81f2dc94fce889685475eb69322fdb604bf1099c60","9d928ef3510178cc32bae637cc96bf146599fa409042e7354d834be0fe74c5b4","3a0c7d8f233c19511bc202d3970f3c1510d4cb40976b0f6d3f952e2f53eafefd","a0c51af3077772968eb8332721df92da017963dd84661a196fe49c1b24b416c2","b664aedd59253a101817371f6973f3ca14935497a42c0931f41c5d27323e805a","7c2a47d18c854b35e854df94bdb271e2f0c2b405c9a18e1812760cf71ae1ce9c","59df66a914108a429ada69f9b0ec5c7aa11a7c4be311cf526539d0c5d6277105","a7b86baeeff583be985d9b11344856a35a889289dc600aefc4e2b1a3564fefe9","5dec716281725808bed0364df1f1b242a9cce0f53a1e675331a87d799bcee6c1"]
Anchored: 2026-10-11
Public log entry: search.sigstore.dev, log index 3199819547 · entry 108e9186e8c5677a0b40…
Expected log hash: 54bf23963e2d2d167d69cc8eefdd91558bbc8835be34c5469b6e0b1af30e4d15 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":"v1791691808362","kind":"published-quote","locale":"en","page":"brand:acrobat","quote":"Other document apps do not have this issue.","rating":3,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (00eb1252356f…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
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.