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.

“I'm happy that I found Proton Drive”
Google Play · 5/5 · 2026-08-04

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 2632025295

Proof data

Record hash (SHA-256): 0c044ee372780992e7361a170690e2feb860024de67eb5bbca2ef4f5461c1b86
Signature (Ed25519, base64): FA81Do3TDpSsSt2YXjURi5997qKF/WPIZG5WKQ9waqiM97sw1+ebhOiAGSSXAnyaAi25DSTDx2dS8kFO1LQ8Cg==
Merkle root: fd6fca9e7cef37aada941aac92decfcc64f6ccf1f80e46f326058d1dbea3be25
Merkle path: ["0c04d36c903fa1ab49175020199ee6beaa3050cb08dddf44ca8bbabee0f0ed40","0c0eeded91848d76f403204f63cc800b9e799726b294ec21da0f9493d06b9560","7f3605dff6a603b0b1ee94793ccbbce0e98a33d898465e6937e8b5492b262b2b","2e4bc039cd07c9180d7ed972913ac90757def337bc2430b1ab11e19a6325a778","ef29646017d9b32dca263f01c6eff61ab2ed6a35b39967c9e49613ff110ccd02","dd1e07be57c2b106fd6527dfdb57514453d67d8579c6a58cc406d459978f648e","6b13f841bfd820ed0be70191d9b374a46c6ffb6358d7066f33b9f5a2c11b25ec","a0894be896e0b5950bff531af4baf68cebb2c952067e6cda2a8bea12cb7fa948","67f7ff6bc8e7087fae1cbe6b90642645fd14eaceb63f87ce4ba05e309a6f3543","44488c47d219869af83fe2ff4d4262bdadde946a1a948f939ffa754b85fd5ba3","77632be5cceb5febdd8af219ffd23d5ca14528d1d5fb1f2ffa88ed55dd25557b","9920afaecdf2c0fe347b654bebc1ac5233b2ab1d10b2ded7a1a817299c6d2453","f88aa868377e782be92c7bc17cca7fa56bb539fff729ac4b230ecbae8fe3bd50","af8b7672f7140c4d5f8cf5a204256eb8a0fe0ba6770180d832059e5b511f691a","d2a30b01208ae5f7745e5c8a474c1f34f9628e43b7a0d1b0d1ac6b378b7f866d"]
Anchored: 2026-08-29
Public log entry: search.sigstore.dev, log index 2632025295 · entry 108e9186e8c5677a7e39…
Expected log hash: 327cdca6f67e0b8900de427ba632e65f297b0edb716ae3a08de15ff81c0cf3b3 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":"v1787971088504","kind":"published-quote","locale":"en","page":"product:proton/proton-drive/en","quote":"I'm happy that I found Proton Drive","rating":5,"review_date":"2026-08-04","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=me.proton.android.drive","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 (fd6fca9e7cef…), 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.