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.

“auch für Windows verfügbar”
Google Play · 5/5 · 2026-04-19

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 3139760477

Proof data

Record hash (SHA-256): 1ed51c04a37d6bc0bfb8fdf6bfa486ccd445368a8d5d4cf3ac43c3c92b9d0217
Signature (Ed25519, base64): KVLohIFulU6+9gtofWastNehU2VlguweUifRk8bGYn1xdMc2xJKOKjUwZWdm8QKbiFTYoX4hx/lPPBrV/L2jBw==
Merkle root: 49133e6803d24035baa1544a5c730db93dbaf832df48f680ca855944337404a2
Merkle path: ["1eda67e2316655963977fa9391db888f8688c2272a5ccf3b041aa42febf8c8e5","82c04a3d52b8523743d2444d5b7fd31836907a960f5d9d2ea79b14af658c0079","3bc6995c1a6a15b440132fc9e219301e4f506b57c4c64fb20cd1c929168d8ff0","ba019bcd32c4cd2990d2ca327f8dfb8761ffd2f0f46ed9daf4ef26c6cd82f0d9","7117f3b6fe054f020f454a61b01526f8a1d88e8a09b128738e3c3c522a01dbd6","586d83de452698abe4325c88dbe13089b92a1854a981e77796589aa042d0d4e7","862666ee20cc64fd5b48d973ba3dfd2945d13dbd22b459292b24c69b243ab54d","5e28d1397139052da12360a854327e2bff4438fcbb32ff1d548cb99e3df8fec3","d74d26e4ec50db5f846a6db347cf93f916d1531253885010cc0ec3f2a7297d31","9486e118038c7cb9aecd1b3260000536871c2c828cac59ccab321d2992a69ced","fe72bb866656df1aabb3b81157f17bb6bd20146ca0ae20d49ff58fa9fb051500","3fab624705af963c8b90d8ecca330b0aee40203a806033b0565c84e0ab95e53e","da05ecf7377d5697c026f830a74de1a09359f7b60612fb722c789caa15cbbf29","90889d6ebe241f2d2f9092870d002ba795f7d27137f7582a09b4369ab1517327","d81f506ca96dea712a8b56759200b270fc625cf496d323ded3475eaafeb2d916"]
Anchored: 2026-10-08
Public log entry: search.sigstore.dev, log index 3139760477 · entry 108e9186e8c5677ac88a…
Expected log hash: d54b6e5e20903e9be29e6a5973227ee9b3dbe61bdc0fa6481a5788472cd5976c 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":"v1791428432986","kind":"published-quote","locale":"de","page":"brand:xodo","quote":"auch für Windows verfügbar","rating":5,"review_date":"2026-04-19","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 (49133e6803d2…), 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.