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.

“premium is very affordable too.”
Google Play · 5/5 · 2026-05-06

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 2543266411

Proof data

Record hash (SHA-256): ef3e029401939e1766acc936615db5806645480f115b7e6f2dfd800a0be3349b
Signature (Ed25519, base64): ISjQe1CXsQGi3mRjiOA8OrujXVRKWDHgj8E5IhHTDPY8URlmkKQruWmDV+1h2XroDy/qt2GUVg8MOYMPzulRDw==
Merkle root: 8ffad6e97d1457610bec7a891f189d1ba7dd7a92ca672c69ff1ce3283acb4b5c
Merkle path: ["ef3f11beabfd5a521d55d0341a05d00866f95061f0977ff90f499200681ebbc1","9c395fc8048da707a27a3a6fc63e9d10d74944e08742cf2eda74c87923635b17","b0fcd75b88fd3c706bf549d7161a3fd21a06bf02cf6a27e8d4c30724aa97dee9","627c8d5979ed3160793f5d5d6300a4ebcbe2876fa7cc9719ed13c3216dcd7193","aad3b43642f2a52b95846fe10e98366178000d1dd10a2231d2e07d07c6fbd99d","3bbcd1af060bcf1093f072f9678f4700f7226cb8dec1dfe048714cb1be159a19","bdb265c29bd0a63d18c15f0a5b95b1fbe6e060a2402a69100ad2af5548f07c15","1434825e6fee2ecabf04bd8cdaa82893614d87e5c70d11077a89028103378c4d","8e737ae4b9ab17838cb7b13a62c767f8fd93c61bbc9166cdaa3d2400c45c4f97","a255be7ea078c0ea57c8ed8a82f400f6982a45eb74288f64f6d0607da83323b8","592cec2aaf16a0b6536b4df7262d22b7ea67bc9d0d22e3e40df7f3423c7de4bd","68f67ed9d4f0551dc8184bf1fe317b5aaba313190329d5e3918085a89ca09c8f","103549e053ca76b1164fbc6f4cd47c3c965502ff32950200621ab55e4e061dfe","7c94ff27d324cfeabd6b92fbe8fbca077bdf14d29975169a3a05e610d1bed13b"]
Anchored: 2026-08-21
Public log entry: search.sigstore.dev, log index 2543266411 · entry 108e9186e8c5677a241f…
Expected log hash: 443ef8f29d5167ebb4c56a46778facd07b7651afa8db2d089c14a991ce0d04db 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":"v1787284817344","kind":"published-quote","locale":"en","page":"product:xodo/convert-pdf/en","quote":"premium is very affordable too.","rating":5,"review_date":"2026-05-06","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 (8ffad6e97d14…), 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.