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.

“Works perfectly, reservation and payment are great.”

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 2948162176

Proof data

Record hash (SHA-256)

4cded14bfe0eab8648e6b592208b64f66337f6d9edd575d4cbd5d0f6dc1a8332

Signature (Ed25519, base64)

XyyIaZ61QMg43tM+wPSkD702DGuZJUB8v8Y7UZZQtfF/rDHmNnoZXPAdRIyv6T263/cfGLdig4/k/xrKdL7rDw==

Merkle root

5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd

Merkle path

["4cde8f5f1736a23f9caf9646b8b45b56d71338adf3de5d3c1f7be8b44b26c7f2","d6879cce717ec118de06d314399ab0f13a545b22e06bb2cb62262cc3e2be73c6","1197f6745a66ad83f7c3a7141da133f2ab5e2ecf7cdccf1b54e83124859b6c80","0d07f440a29c5ddc43e9fb71bcd213db652984342b23f677d25e0abb7b82a3fa","da13b3208bf2eb599803969642ae3d67855194ab78c638ba400ac190a28315d7","c17def98faccbe14e248918c1a34eed6e6f6882fa06372acfbe9a94464f372d1","d2dfe248fd8f16ce62da60eaf2eaea7b888f5eb0836d4674b49892508b364b79","4bdc643b161031f4971f0197af148bb7e02e04985863411fe0da5c84e9ef9fe2","cf2f007e85952290b160243318bf46b482cb00c545757a4753ec576956f7b52a","f4fb70d4dcae48872003f3a2996cc00d9c1fd3990f0d2efd4ba03d9c011dd634","c67a728bc683df56876c06bcbabe111bfb03543832dcf92ce235a5cf9aeb843e","761d3c69791efc32a160ff138bddbddc7bae13863915424c916d5f32aac8cb96","63caf53777d803af92ac6db2d445588376da791f63be3d8e14916e9cc99957cd","f5d1cbec3469173c409764ba850b613628c88020363ace8f472e6f611d605e0c","eb97a4ce74ce5f5fa16f1703481b35cd770316cd3d34167e9b76f4403804f896"]

Anchored

2026-09-25

Public log entry

search.sigstore.dev, log index 2948162176 · entry 108e9186e8c5677a61d4…

Expected log hash

5ff8f25b7934b5d72d363d6805344624efba4d637f2c851f11783b259b9d81be 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":"v1790226990092","kind":"published-quote","locale":"en","page":"theme:schulthess/quality/en","quote":"Works perfectly, reservation and payment are great.","rating":5,"review_date":"2026-01-14","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.schulthess.mobile.android","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 (539721061967…), 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.