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.

“after the latest update this app doesn't open in my tab”
Google Play · 1/5 · 2026-07-15

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 3124493015

Proof data

Record hash (SHA-256): 28ba69527a8d166e01bae8d8f4919488904ffebca404d9a5558bf6bdc6b926b5
Signature (Ed25519, base64): SOl0NsXu+OSg0dXbps6VRXChCC2LwxMKV9fEaE/HTj/jxETW1ZrtVFpcdcVcn478i+PN5fFoJEBw746azEpRCg==
Merkle root: c481d62412848235567fda063ff4784e8e49df41ad8b5c570de24ba396415d22
Merkle path: ["28baa397caa1773eeabf16fbc7f1c38adf100f42fa063f2604f9a9eab67eef8f","76129b11e7760c0bfb19932545cc1a38f96596eec66612ab499ceabdb261a95a","e9676ac8cd36439338c45fb46f0d2b373fe7adf9420d0b5b6738190404a9b677","15933b6c4f23e2b58119d3c5394bd7ce42a6fb4ed48d4803a47eb5e074ee8591","3c6a9c3c324828d7761d8e84115d24484d06ae9a73e3be8ba94a421f78b94d59","aa3a61d3f4f280f83c95e19153f7708ae6f35350cdef885c3c6fa6ac224beb8e","32e4a8011fb523a32591943137bdfcbc962c3ca741cebbfccdd64ef80ac5e963","096ce6052c84c138df038c3b271f6439d92af0ef33f7eaf3666c46c630606376","6cd3260f29bb10bfc7be20f0c3f73c85d581545a6ad5e893442ece00e11c4347","1d0ac504dd0548b5640d8dbe778d1653e7b7f413d42467cbdfddfcf9301690fa","037c5108b45f4dda75818c58742be131876ba8d358dcc8cb669de138c83215f8","561138a292ac5e055874c6350bb92a5c3a0d1ad819d0ef5aca78b9282f712d50","8e2d739e7baaca5eec7f3b63cf14603ac9110107e45e291795e5962b0aa5df6f","ed99a4b837bfc052822e7d0dbdd9c56431a87e8600550f5deaf9f7068616c82e","0cbfc145d581a4c4b7198ff8f397c34cb4ba6263e9e9892372f878302426dbe6"]
Anchored: 2026-10-07
Public log entry: search.sigstore.dev, log index 3124493015 · entry 108e9186e8c5677aee70…
Expected log hash: 0056b042c00529af1248b70a0a2fbed761990dd7841ea722369c29a2685ea6e1 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":"v1791350987184","kind":"published-quote","locale":"en","page":"brand:xodo","quote":"after the latest update this app doesn't open in my tab","rating":1,"review_date":"2026-07-15","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 (c481d6241284…), 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.