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.

“Die Werbung ist zuviel, dass hat man überall”
Google Play · 5/5 · 2026-07-18

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 2657305914

Proof data

Record hash (SHA-256): 14fbd265ffb076d3b5f212ff6964f1cceebbc9bdcf3f5ed8ecc86ff276311205
Signature (Ed25519, base64): nB/amv4oI/hsG9vsArRtjcGusafbKduWWGkkwodxAHl3rZvq2gUmuo+1OZ+5/moRXjKSDSDANhahRIMSqI11AA==
Merkle root: 4e4bd1a263431190e24045d88fbbb7ed5f9030935faef80dec659ae2f039ec76
Merkle path: ["14fc2e108d6db687e67cedabb72913a84bf9a489249baa2ff95a46c8b4f78fc6","a1d2603ff89025298e7b19a6cb240112c118c1647c53a860b9bf82cde2a83e96","3572e381190212a2a727bd8ebbe3439b4ecedcbaeefdbe52b47f39e15efea6bc","78a7ba74977e94f578e9fde29b7d9d9eff9da9f57423031dfd0950c8af64c15c","fa2dc7a469814d117a9df07e36a871f920fde84345f12fb66910297381165dcc","439129e7cbb899022df91a9a8796d26455ba6166cb6bff504e3f3aa77704fe78","0f01ce02cd5ea4282ea05770348db0f08bd533e35623f6c6348e235181fc326a","652bf0e7ff16d95921243fa87bbcc05edd5e757ca18cd5f313ff277cb10ae843","abb20a7b985e159a9449955de19eda10c43afa58f9aaf44ca6e7fbbc8bb5ec7d","caab752a8852d103b2cfb7c95bda1deb4bec8e25cf5c9b716d78f9780fa8ee22","a9dc85b0feea577e1e56f3301b6416e5ffdd1261a7a85a262ac1f4cb6b735558","2ba87cf098c6c2404b2a7976747e04faae5f4c59da8677168f10303f3103cbb8","0dca924cc5d490cd09e6cf28d263a70ef1171963dfece74286d6f33a3bb659d3","5b404d681bffee559c59320e4c89c61c29c9a49c6b4ba6d76cd832716684aa58","9aec3ad04e3d8c78958d9259e35fb1f1ff0ef798a114433bf3a500e8a57b1e41"]
Anchored: 2026-08-31
Public log entry: search.sigstore.dev, log index 2657305914 · entry 108e9186e8c5677a8c0a…
Expected log hash: 706e8c400fa8ee9f8b3984ef9db59f211ad2980d864551783fb16e1211d62156 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":"v1788144640122","kind":"published-quote","locale":"de","page":"theme:acrobat/price/de","quote":"Die Werbung ist zuviel, dass hat man überall","rating":5,"review_date":"2026-07-18","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 (4e4bd1a26343…), 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.