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.

“intuitive wird die Benutzeroberfläche genutzt”
Google Play · 5/5 · 2026-02-03

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 3272785693

Proof data

Record hash (SHA-256): 13234be83666c8d22b063b97a1edef57a9a90f0f4f0152db94a05021aa76e532
Signature (Ed25519, base64): pl5VYvoNlGwM6IpteZzN2BjPdhcZYGURfI+s52vHAu1sgMGXfcPODHwFo2PZeIn9nJRXmiCS5G6GTd7upwHnCA==
Merkle root: 42ee8ba4b974d737f78b7f168d0af8ea0510697ac4ab4c6db44b5522bd195660
Merkle path: ["131d941afe58e6e37da8fddf0ba18f1543c9870b4e560ac62b41aa1ebe30a711","b5527e03ce3a5cf72b1f3ca32f85901d1fb8dd4e6aef91466deb07377e3ed3bd","c488ca973c209cb80cdb500750c026ae20b389cfbe604a7d708f767c7cef5bd4","266d47b9b0597fa09e7b1f199812cc5995be0e8ae2c3f75fd6ce13ebd034aec6","e6543c8b688a6085084b0fae765b5f10af1f7e72cb35d1b02cc12bb9bc05b3a3","fb0c70902311ffd18cfe54026177304cf822a1e4ed128978c5c802ffba6a2ee4","d71a37df703e169f6078640d7149699f5f108bab5c90fc3990220ed320f08940","22e520befa6079898087cde699578fd6b1cb34cd02f623179a517cc7cd7cc51c","9314ba10eb7d4e11647358e03e7c07b11d4c98342657cc7ba7b94e247a2a8da1","907f73919d25d5ed6af57c60195659de7340b10474815be4ae55717bead6e436","d7d6aa0060ddf43900b4c89a5341fdb8b45cbe3c238096077807e6e2f587a8c3","5f15fc19c161cf1b078cec1dbb446ebe0ad796b02ab5da46a3b86356dc6581b7","49dd732b74591111793e90f822c8febb6b4e9dba2f427a61f4d9f7035d4c82e9","c77ac7da32c6d4db47aeb73e606322601c1bed1566533de53bf56d1599928d0e"]
Anchored: 2026-10-16
Public log entry: search.sigstore.dev, log index 3272785693 · entry 108e9186e8c5677ad5db…
Expected log hash: 3b93391ec0595ab5c0ff73f2540eb1322f56c3c1302e6789c57b97c74423deaf 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":"v1792118508353","kind":"published-quote","locale":"de","page":"brand:acrobat","quote":"intuitive wird die Benutzeroberfläche genutzt","rating":5,"review_date":"2026-02-03","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","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 (42ee8ba4b974…), 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.