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.

“You can change it manually from settings menu, but I'd rather have it set as default.”
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 2595205423

Proof data

Record hash (SHA-256): 09ac123c7adb6a4206b01e6fe74521204c9abbe61e4fa5d5221c6aaa47cfe9f8
Signature (Ed25519, base64): F/3oIvgst5KPwNxhxP6d7IKNaLqXWaJv7YmXPitTVZO+JsNJZB8EYcDzF1+2tuAk2rDj2E1/gOg1e4SfzrdLCg==
Merkle root: 249a627257bd2a9dbd9bc74ec65dce63e29c9ccd8f402432a46bbf1cfa12c86d
Merkle path: ["09ad6828907941161e99f1fcc9d91845112064abd3bcdcdb5f80949ec83f34ee","7f4f624b31ee706d0781f83d056edfdfe0ab97e209b772f9651a485aba10f504","5ee0d785b9b864f1254eee1880ec90aa4e0817521af4b883332ae66dfe14612c","c1215d84af906324847afca619efc71718e08ea4af71f4353849ae820315f384","275bba29756ee2144a2f090d6863b2f24956390008f8e87dac4c2c8f3a30f4e6","1e0b9fd198c59b2b8d1be10e3d92ae8437b516e8cecb8da74b3c051b34dd0a88","f2c1daefaa95a85c4397dccea2d5518ab5ba9e726de3f1412153abcb2f28021b","15267a50f4c90ac9f1176b175e20a62dbe116ac036b38a9549238d9132df86cd","053539d7b184532a0fffbf2b0ea0ad399f8eabf2499a06b32ea2831bc8736268","2081369099f01193640d456ea432b9d187e33dc3549ceaba6b6bbd7768380568","727ae059abbe02eee013267a83677529c0c038561c22020d9913582d43a800fe","93da08a32a88984f43cb8cf77dc9f15f59275e83068c84de6557b04be928f845","eb7727f04a590b9f55c190f90839cbf73f485e828dfdac586db4b55a34076c29","c94857f058a09552518db3b6411014dc84d9bd9a71b10e488f83e40faa66dd70","98481510f61448eaf55101f28c348e05af213e498327b1646c7ec76c471de7a8"]
Anchored: 2026-08-26
Public log entry: search.sigstore.dev, log index 2595205423 · entry 108e9186e8c5677a9f26…
Expected log hash: fbc678ced8e0822086692e4ab6d232b628f26b1a50cd2c52eadc2f6910e32e8a 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":"v1787717877847","kind":"published-quote","locale":"en","page":"product:proton/proton-calendar/en","quote":"You can change it manually from settings menu, but I'd rather have it set as default.","rating":5,"review_date":"2026-08-13","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=me.proton.android.calendar","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 (249a627257bd…), 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.