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.

“It's truly amazing that there's a free plan despite it being so secure.”
Google Play · 5/5 · 2026-08-13

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 3665856061

Proof data

Record hash (SHA-256): 0ad973d7cfe6e2bf653e3e87587f17ffc49f8660f2db126214cafae35628ce85
Signature (Ed25519, base64): PDxAQBcdvqvNcl6Xqpb/Qt4iG1skM9hPwxFXcUgiDwMnacegBNv8LnMSSqe3D2/fc9Rhs9Lit4Mtsu2gOTt+DA==
Merkle root: 30e6dec0d0882018a3e7bccf18a3222b7daad8045915eee7523618b7cf75b77e
Merkle path: ["0ad92bee9a1eb47745fd1a1c122016e30138e1d342a12f8b31611b78a4fa3b2f","3b07955824d96ad78a04e5f72c51233682e17e7b9e07a12234187401a7233e6c","9ca94fe95c5ada232f04e810026314ae81a48249ca9dc0d494bfd0bf6c5c68ba","6dc56634236ab012d34ad9d86e933d6d3258658f86903841aae36242c5dee7c3","d68d17243e0e33a899a7c5db67128ebd9c2c3dae02fb691053d2e3f9429fb27a","13b2d7587f7e7509ef5149e5cd791d125c0ee4a21a194ddf9dfb4f35fc445a9f","4c87fe53cb4cbedd09832e7cdbb5325d0b8d4198a241bc85644e851499c01979","fa12f1cec5a5df4f0cfcefb5e5fb8c7da9cc12149273629a43509ad6239c478f","a2493b5bf3e0c12206ebd3d497f2f48643d1aa8abb29dd504a496f0ff5d87842","5118ccf7e815cde83a7a81251633fabe8fd16f8c5ab105e15b1895a648804182","7fd72173f45524d175f6c633973e8c30e8df12f70bff21bf410e7b33944e0ead","912fcc514d19cd9cbe0a1b4ab754d197504acd67486645ee4aa172fb248dca00","46692bc80fe953f4d8d52179b535334176c04357301aae92a75d811dbddb72b7"]
Anchored: 2026-11-03
Public log entry: search.sigstore.dev, log index 3665856061 · entry 108e9186e8c5677a72e2…
Expected log hash: ffc1bb1abaed68d6145f4de3e9055a9ceb42d7f5a099d941c361cb153635fb0e 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":"v1793699634728","kind":"published-quote","locale":"en","page":"brand:proton","quote":"It's truly amazing that there's a free plan despite it being so secure.","rating":5,"review_date":"2026-08-13","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 (30e6dec0d088…), 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.