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.

“Funktioniert nach dem heutigen Update auf 4.22.3 nicht mehr.”

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 2524617489

Proof data

Record hash (SHA-256)

4e85d592c2097f584ce3c040d39275e743f5215c447c7d06f6c7d714b4503fa8

Signature (Ed25519, base64)

b0JeqF0KoEou4XG+i3D4FRrQbdW+toQDwBLkVC5bKGDUGoWz3a5RDvatKJACyn7Uwq4mG4J8BRPjwEPO7BbfAA==

Merkle root

5c4849a28e8624d6f6d3204e1f81a6b24f2188b6690e8b122801054617ca25d8

Merkle path

["4e812c5ce8a5624b84666149777df79148d9ac235e74c44763a9050dd31d7034","adb49448e2d6ebc1ff84fd685c37a384c1bb23b5e3e9e0305f4dbd16e663adfe","4ac1ff1d3e362e26fb640f3d22b9413362e745ffab5ddc7c751ec1753219fc39","60be00ef54b6b1330b785d77ee7e40395c968538495b4f152892d94227a5173f","1eadf5e24c571202b4c254000c74738f2c73a261f6cd5a878de201918542f94b","fbb58a2b9472794942f6b4e9cef86492c149598c977e4ad8325421f6ced2139c","aa29fbf8518a37894f3ac159daee653b3013177e713aa727aa6f945676fa1267","3c7726a61801e7774bd1d7d97a5350bc85ba20f852a399697a0982bfe481d33f","ed23ac589df80c12ebfcc486b39a26cf885b8f0bed2540120e5ba1fd41703618","23467c286249f74db9c6ceeaf1ea767cee8513f04a37fe19a8871b98f5a4dab7","4b457aaf7c240eb32b68053d71b69880761807bb5bba51f88652ce032699f4ac","466498d84190197378efc373f44ee89fa94c6c46d968f52da9433662aced390c","45616304fbb070f744d098367d3db0bfb10c29fad886560a2ad4fe003bd3cc4a","9693116cb745ecfbff942949993950a2efc72f3f48b394aa6516ac43c745a9a2","649f189ed3a422a3ffceae7f7673f3e683a1fac940fd27a4d89bce585dd48e49"]

Anchored

2026-08-20

Public log entry

search.sigstore.dev, log index 2524617489 · entry 108e9186e8c5677ab139…

Expected log hash

2051fcd76f2ba790414bb1c15fd4d3d064889742ea46f8e55b5028f1f571c27b 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":"v1787193158162","kind":"published-quote","locale":"de","page":"brand:pcloud","quote":"Funktioniert nach dem heutigen Update auf 4.22.3 nicht mehr.","rating":3,"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

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 (5c4849a28e86…), 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.