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.

“THOUGHT IT COULD BE THE BEST PDF EDITOR APP.”
Google Play · 1/5 · 2026-05-08

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 2541942774

Proof data

Record hash (SHA-256): 6a16bfd1c4bbc73f818148a6affef57b789e32288728e40adc0986065ee96b5f
Signature (Ed25519, base64): I1Kw8vlX9QiCeSxbgAg5MFmU3cK8GoM/4s6N82dHpdo+uZmTwt5uxnFNCgZ7spmYffdmNTUxgqhKto6I1B7kBg==
Merkle root: 0fdf8a945cf322eba60395065bdb38bb3eeb32c52e065b6c93c48bb56aa3bb91
Merkle path: ["6a1f49ba9e3d4897c603df76e91b9b007e162e92374d29bb4c365559fe918f48","f0751b84f363c03690f184e5cb6a5d6d017cf6c313c05454ea96fa2e030cddec","8fb8b6aa1f57e8b566808635a67da9df3604877a084a2946a3f78dde0d1252fa","ca0ea698a1ea9d8f910e8638a57fd12fd287f86977e87857558e7d0f0064a773","21ea660cd905bafb8d3fb58d557d770eeb71115f419685911888206648afa574","1a143e7892fe29216fee3841fcade3f5a4d960f3f19d9d87c284ba79e4682f0d","bf8d331b082d29ec49c2bf852df3ef5515a85abbcedcb179dcc13eb2dc04b482","0786e46986d7291b96125f00e2ed978be374a17d4ef2b4de0d7aa87175ef57da","34592f1f0f45df85e88a13455111dedaaf0f86a05ce2a4cb4266b95597380826","bd3b61a3a8bdbf733896020e30e4fcee0d5bca0ccbd366449c4c8cbbf68bade4","3bb33c0246a29f236d592e7eeea8842f1f7d6031eac0445b3352c64c0fe253e3","58a6e6d87e5abc2ae84c16426ac7ae57aa4ee3dea4aa297d173e96c213dede34","bf9364c8f07cc31dde92e8fa9e328df950308aa505d76ce4973db2a6f71840fb","e612bf3863a4ca6db004d49df9b16b869da6bd7612ef55762e23c722f5ffdfff","31e60baa9fb8f672f686fd126d7dc82498bbfeaa38bc676e67691bf1c2c7c210"]
Anchored: 2026-08-21
Public log entry: search.sigstore.dev, log index 2541942774 · entry 108e9186e8c5677ae0bd…
Expected log hash: 4825ba618d3c3368179be13912e101812df871de37f30b1ec256ca6d987713ec 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":"v1787277864570","kind":"published-quote","locale":"en","page":"product:xodo/pdf-editor/en","quote":"THOUGHT IT COULD BE THE BEST PDF EDITOR APP.","rating":1,"review_date":"2026-05-08","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 (0fdf8a945cf3…), 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.