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.

“Sehr umfangreich, Super PDF-Bearbeitung”
Google Play · 5/5 · 2025-02-03

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 3199295725

Proof data

Record hash (SHA-256): 0b907b59132f9b5500b379a9080858f786286a0fe5230b98b747f27d70fe7f87
Signature (Ed25519, base64): TeKXP2sXgAtVqH819NVjUHWidMN6FwXhQb+f1kVHabJvCHvJMdKVZYAzCqeDfa5csCW40zMJbtNl38YIrcn3BA==
Merkle root: cb5472fa7b7f10b7453a4f782a38c5dbb3d782ac291369ed3830c2ab783a230e
Merkle path: ["0b8f47d59a3ba9349904e1bc646bacac015b2beb5b6a914c8bf08d9149ffe29f","68ca8a27080e6912f02bd0723a897852bd4caba0da6cf39499bd05e6f6856e91","e6a3bf632f63dab56cd19702a30858f9780ad9eb9cea5eff73dfce94a5b5ae32","09d3ec69b3e38eb086f5288a3496b33f2684d0eb45114601c166afc3fb865bd0","9c7b46de86e77bde5f5dea2745c89470ed713a1b20846843f87c6988c054a7d3","6a7ebc27cd962e0267dfdb5dacd483936c55d2907dc38d955e956a8e860f4686","752a710529f081fa44b0c7e9273ea9b0913624f46290bbb8f1b457f5a8441c43","8d0daac219056b0d6f3172ea6304e8a02320eb07d1f3d3b58070ed71c4930db2","1966b3c418ef233ab22e6fe60b9ab226eb956ebda8666f513f35c91aeceb3217","b923fc65b53d1245a7dbc450820f07d07f24e70ea8c924542f10cdcf583b7f95","b94a844053257c70528a7d20032de3c86f571ecccf0566f5d5a2e5d918427f02","00bde2dc86f5cdfda03d921fbc10cb6775a4a59f43762c9de3e415a772960ad7","67ef19118472e8cea8d8f9c7960df416625b46d91fef63f2cb0306cda5833746","6ab0f07aea38f551fb6ed4456f21bf7c468ab54859dff87b6772a51601755f64"]
Anchored: 2026-10-11
Public log entry: search.sigstore.dev, log index 3199295725 · entry 108e9186e8c5677a3fc5…
Expected log hash: 59b8cd8284c909c35d85f443b6a086d482f8b667c56ec942d663937a75e25638 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":"v1791689736846","kind":"published-quote","locale":"de","page":"brand:xodo","quote":"Sehr umfangreich, Super PDF-Bearbeitung","rating":5,"review_date":"2025-02-03","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.xodo.pdf.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 (cb5472fa7b7f…), 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.