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 were very considerate and helpful with my issue.”
Google Play · 5/5 · 2026-08-12

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 2514496096

Proof data

Record hash (SHA-256): 0a623fb11fcd610e56a470719eb479e8afb429e320928dc70ccda1dcb96b3587
Signature (Ed25519, base64): rOVSly3DGczdQEC+7EN4fCk79GTwfzGWFCp+cpzY5v+QbowTVDQpplfxqeNetMExLxEFn/7RlwU3xCRkr4ccDw==
Merkle root: 790984da83ec061260aa072fed7636f9dedf91964fe0be93d7a7a622b2b5a92c
Merkle path: ["0a5ed45ad701f6eb1b3462af7192978f51ace426c77bcb28629a97a624fd9efa","1e8ff2fd034b8be6e6776cd5b629fdd7c1033e1348e83429810aade6da7eb991","3e8d3eb7db3a8b34bff2259b485d29eafb4dc02bf3938101ea97203f103aac15","e2d59e96c193639c88a48831a2c465cc90e88ffba39cefd30a427abda7c22ba6","f620fa07a689fe9498361a32a6b68b3dae2865ef176156fc563531017cf9cc80","773d7e73ce893cbdfd043da73258846c7e8f62cf0c29275b3b243181a2843cd1","23953c746d9412cb233a339eb9d1a5fb4a79e0ecf9b264b3777a1e186c52cdf0","5e5e44e7accde0b9703cff9efd3322692de6b5f4c0c4befe787b4d9dc2ab8a6d","bb708c6b51ae6809a3533b62d234a7406a9a1e91c2801d08c43cb57fcdb68ec2","cace77bfc47f323aab46161ed43e8d787e6721fa1dbe4d7f4f9a8c7c8dfdcbd8","6304ac71a1b2f52f7b9d71dc18128d29685543003b3b63d20b4c45faf5063076","0ab165eccc945f726f72a18604e160b33092671c5a22e68c21815ee55c9985eb","03448bed473af8dd9cf28b70fbbc04f05d3dcf46211926aa98113fc3caee3267","b5732ea5319a80c00443397f423c046c357d98fcdaf87d445516405ed0934bdd","c7feebd3045cc2c03d87ca1241b2d06259ffad35db645c59ca3c5ee2004a8947"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2514496096 · entry 108e9186e8c5677aad27…
Expected log hash: 5d2238ef768473286d75355f523ab94503f4ccd3d25e17e9efb265aa0f540183 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":"v1787129810322","kind":"published-quote","locale":"en","page":"theme:proton/service/en","quote":"They were very considerate and helpful with my issue.","rating":5,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.protonvpn.android","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 (790984da83ec…), 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.