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 like finally having email and calendar in one app.”

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 2789279696

Proof data

Record hash (SHA-256)

7e4b1a08627f426c13b56d43a2660a400625d97224b51e49831d346043efe175

Signature (Ed25519, base64)

XtcD+Tj88C0v04k/tOqLwcio478f8CAUjEta2DZKguIcDpwcbvyp7+N/W3FzmZO4bnk3XbFRAOb7Q+1wrS3rBQ==

Merkle root

97eb1062a862b99998bef0a84476eb3c3812bb77c2cb927f4fd2933b59da9e3d

Merkle path

["7e4ba7ee4b7aacf3f95eca8227ac8945ee380e06f16bffd38b714cde54fa3f57","b227801885980c170287c471c5ce4f5521eef94fdf7a162478730fb305335125","bd307488e5c556524af2a3fb459081791982c7f64588d75f8c19d775489b8cc7","7f9db462709e0ee5a9e63492ba61a00b5771fad36069e15b00d75672c0322f54","4baef7ce3c55c7d017e9bfdf6477fb77fee4f12462a84175770a2a6fa8ffefb8","1f3943ec49c36fefe61f8b0068251bb0f9fdcb77828dab6e059b63efb83ae8ef","779c73d3d794c4312d6748f7e0421b262eb3e5d350a54fff11dc7a485a395f4c","fee8d8a0317463d862c64bf6a8482521d9324d0c849bca9c3f08b575e4a96d98","92f7117612021e3adbd40c532fa5e96c6655a0dabe48bf741b61f9fc8b174827","2d8ecb41f8400c70f915406462ee47efc269e681ddb12759aa75be7bb6a1c1b3","4a7da3ae635c518c772181747583fe91b52dc970a195f2fea0b029288d95f308","ed5206c0018c25fc911a5b83d48a4b07edf1ca07ade25d7e56162349167c269c","6772a6b2cfb742f4baa103e424787f6ab6a8cbdfc294db886f1451f7c9752077","90e3c3ed08ff9f4dee6683cf95bfff311f4715cac07e97ca75ea5b9bcf13efe4","01242865574478f13dcf9d888236d7a907264abdb87f360db7db06de0945075a"]

Anchored

2026-09-11

Public log entry

search.sigstore.dev, log index 2789279696 · entry 108e9186e8c5677a3885…

Expected log hash

05c7009ecf7ce5cf315c252c2a1dd135e64989a02cacdaaa3c5a87412a2e921c 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":"v1789017464005","kind":"published-quote","locale":"en","page":"theme:tuta/delivery/en","quote":"I like finally having email and calendar in one app.","rating":5,"review_date":"2026-08-18","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.tutao.calendar","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (97eb1062a862…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. 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.