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.

“Exzellenter Cloud-Dienst für kleine Unternehmen.”
Google Play · 5/5 · 2026-08-10

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 2515439294

Proof data

Record hash (SHA-256): 45d66eabb17c96447ff42c37a90fd0b7cff28eddea4340a7f685c8835595617f
Signature (Ed25519, base64): iFFJOrijFVYrrP0EMqia6XiTXb11yVk/4dJzZ1RrjNf9wET5UhzG2GJPpxL87YfoQBDsIqae/jIfd3F5SL5jAw==
Merkle root: 8c6268a14330d1a3403c561e774645b0671f81571ec1735d4674ebe1de7502e8
Merkle path: ["45d96e1f3ddecc068610308dbcb84f4e60619772f7c08dcf93599d556051348b","99b5977a57ce40bc8d6ad2e2054ae1d741b4e1f8d7267c9a541c0411356596b7","4f467cc575f5a8d59fb07ea7299e40765566ef4ca75c37bf3339aa6d69970d0a","391d41c096d199e1a4ab6d09c817336733c16e78e425f59502c76d8387883f2b","1662a67012232ef4cdb0f6023145189771cd157558ad190d700958091a18750c","89b3ccd33f8546a6d75c85606e4122b7b921ce3e3707920867b0a0345f2fcc87","4ffa3acdf5c197ce3a26cba58767358cd02b96766d57f098df6bbff4a450d47b","22149d9d70609d95fbef5ee9bff0e8b5477f5086d6e61e1e46b0b73a692ef71e","bdf23c4ccdfed172646fd6dbe0b4445d3ccde26a8fa7978d62c044d7b02e0e87","695a8291d96941d53e0ebe748f383b3328716127bfdf502dd45072397c6844cd","ce19839241ac0eaadcd29c2faae5c03add149288fd6c9a34fa63038534ef7590","bbd81ce977b62d941970a51d978795d1ca8d2e3dac3434c43899db8d20191a9b","a130748e37a17fa29f4013443a16c6ba5d7fca63733ddc833e40182a59b453a9","894fb50f273584bf006781fb08f5958320d3e5510a31da0d6339bcf63d847254","f548939ab1bb46e2c6638c372c3e2eef0d561ad18c63c15229fececc951e0b3f"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2515439294 · entry 108e9186e8c5677a4f15…
Expected log hash: 128701fddbb19410bf57cdb2d04d7a0278d13bcfda6410d76f176fa58341e1c9 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":"v1787141082461","kind":"published-quote","locale":"de","page":"brand:pcloud","quote":"Exzellenter Cloud-Dienst für kleine Unternehmen.","rating":5,"review_date":"2026-08-10","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.pcloud.pcloud","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 (8c6268a14330…), 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.