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 3162767972

Proof data

Record hash (SHA-256): 272a99ce6716ce116b9391df1f87f7b0616a4febb09c67a5afee711bd81fda0d
Signature (Ed25519, base64): XoiqW/JVIYagpcqxPBLrGm5+KbBXcOI+GHpoDJdvmhLRtVFh6cYBC2En0VkPMzOUc8j3Qiel0j2U79c372fTDg==
Merkle root: ea9653d48be6468e8b38c47d968f49528ccd17e229f6df41b5fdcfc232720ce1
Merkle path: ["272f37249e515793dea6818c1e15edf8c4894557a26f53f5f3ad6ccb0505e688","2652184001972504ba509d0720b9821bbc8203e095458cda30ff044cbd45b83a","49339042a2c23e12af5275d6a1014bf33aaac7406b4fcde0e931ff1bb80e81da","ec2e76b17bd9ed28b82b0cd2b66bd730aa18c7a34ba666df253b08ae08258942","5e7c3b8c91ac9b39cf6b581fc71cfe6edb25933963c908c45724d9436a8fb8c1","5232ba6aa80714d710a63114fdefae079b14ac594b26dce18dc83154ffb94db7","723f0798882e439ae585e82d67ba06f6e5995ebe8184cd3405f421c8d87a1d14","a6bc80b9a0bcfe94f7c000fbed7f34aadd4dfc09a580c8488ce29526a37d09db","1df596a8a36159853e7a3eaa96636e6853af99b85fbe051995041973340fd2aa","ee08ff90977cbc7594f2e8a55ab66f368264e30d00451163fcbbd7926be0f614","b3d24f1d485eb31f67983e8448b9007b3580341c636d7fc910a97ab8873d9e5d","9253fa4f5bb69c032cde6a50eb05a9214fda55ede5998b0ed751c72bcace6cf3","6cd34e3dfbc2bb436f1bb9314162b2979f7ca90ac38686f80fc39acf8dc29914","ce40f5d4a6c2a1f06b7e5ce375094f8c75556b02f37cd3d94ca98fa0a38a1e5e","142248530d485121153c09b780e08c6af592fdb4c333042d3cdd9e4160c6db55"]
Anchored: 2026-10-09
Public log entry: search.sigstore.dev, log index 3162767972 · entry 108e9186e8c5677a40b3…
Expected log hash: ea8f60b663262eef5ec0ce5a9fbc0ace913092ea47c37bdc70ac392578ea0c35 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":"v1791541525227","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 (ea9653d48be6…), 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.