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.

“even when given option of converting with watermark”
Google Play · 1/5 · 2026-08-02

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 2542751096

Proof data

Record hash (SHA-256): d56092aaf5b24b20c61343454e98596f955a268dad6d16efcde4f504d3abea1f
Signature (Ed25519, base64): HlurJ7NxzQcBXYf7aIDOHH+nC/Ui1UKzkr4F5u35e84dUz9LBtmI04GrCP+JOr6uWiMNorPdjsjJdkSObu32Aw==
Merkle root: cc9af896bdf0beb88857e1dcc841c404ccd4c59cbcb6932f17077fc8aa87fc23
Merkle path: ["d56041ceef79136d3ddf6d214ffa7f3aca66abe32ebc0e6107f615d6d1c99a2a","d1a21e8932af3fe0ebc66f6d4631a664631f785b096b1af9834e22250c83c07d","bfa171feadad8d55393e0c075ab0d08bf81909b785fef82cb25549b8fcd7dde8","05ba01197d73d0663a74967d29c82ca55897885dfc8ae8a88220df4733909d44","0e62e6cd280bc6c8604a8b4de050715e6a4953b67c53374c74b1b48cea605363","cc6bbf0a8a99ba67c2584c3e2c4dbddfc83f59d54557771e98437eecd4b543ab","f58d253f228068de59112387b630d53a227e477abf7fc983e32977f8affb298e","200679e2415ccb5ad4bf653759eabae1719ab89af7ba4cf01d51b4a529ac64ca","9bfa6a177f014c2057f36d08e734e272e03af8a6bddbe8a168aca1a1a887421a","339acadef14b513810d5eea9a1ffac48446eae4c67e5cdf1a842df10817c0d24","f80d0c5ab8347c7b632acf0adfeecbf0642beb93c4860356a4d8d6b3c50e4cb4","e0221a8125d409d980c3ca2e8b0ac0fffada91f6a184545bce901df7a1b32ec9","b7e7321936ec01ddf1a27939d7f763a96d242072647f162bf95538c0d78946b8","061d6f557e045828e58e062e2990b1f7ebc6103db2774df447dccd9f77833f8c"]
Anchored: 2026-08-21
Public log entry: search.sigstore.dev, log index 2542751096 · entry 108e9186e8c5677aaab3…
Expected log hash: 8251ea19feed4cbe325f48ba93f0e47294878633f5d43178e4a3a023547e795b 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":"v1787281943761","kind":"published-quote","locale":"de","page":"product:xodo/convert-pdf/de","quote":"even when given option of converting with watermark","rating":1,"review_date":"2026-08-02","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.xodo.pdf.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 (cc9af896bdf0…), 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.