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.

“They change the background to white, so 95% of my documents don't have margins”
Google Play · 2/5 · 2026-10-04

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): 37d99b089bcf9dcc1f41a3789e91fcd974f2886c9dbc440159219aa25111fe7a
Signature (Ed25519, base64): ZZXz1TnFp4uL/9H7GWM3RpN8ym2fIAOo5sCJ122qjOqx6wmdbRkVPCUKleFAZ1FSKkMBoIYZPUtVm0dyBDgvAQ==
Merkle root: c481d62412848235567fda063ff4784e8e49df41ad8b5c570de24ba396415d22
Merkle path: ["37da587ab98b65f16569451b1477b83b76d43c45d3792a09fcd63abf2303e5e8","c79082c1ddc83b03ec413e80853458f4f88b2ff6dfe3f17423455087b781ec48","256a866cc8c9fc6f5be6f76fb064ed7e7a4fc96e56f4c3fe3087d9e300313eba","68908b9369ec94ee0623365af93ae14483f8226205bb95ba6c2fba044ba8306c","0297e12d46b4ae0ed1ecdff3f4434903c0c41acd4fd6ceea248f3edd2f4d1cd4","7b58a2f0cbe62309618cc71a13b7aadd06481cb0187d179d90769c61b1f2b221","6b1cebc70e1b942c8fa64d7426819ed1f6122951f27cf3fb3591ac5d271ff063","0b56a26e6d61626274bdb8f8f41f6caf4ce4afa6b952b17c705cbec3e9fa3f82","a9f466592b1e63de46a920c06636470d3c4b1d40079abfd5dfc96a445d6b5750","c25cd6c32369fcdf3aae3fc530f8a25dd9af677b38a0d209b7b5e3bf51bfe759","95879bf6a3fc7ce70ca2b471f5d4f88658538920a826165aafc72e37a36801bf","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":"They change the background to white, so 95% of my documents don't have margins","rating":2,"review_date":"2026-10-04","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.