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.

“Nach nur einer Anwendung”
Google Play · 5/5 · 2026-02-03

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 3162173160

Proof data

Record hash (SHA-256): 0cf8b8c770762950537435435654d949ce4df0c1c96e45b6f355f18ce0e32a1a
Signature (Ed25519, base64): 8SoPMLkYuDYIU1c4Ux+0FtalCnWhLjpMW6Iz5o3RTL+GToUUXyw7K25gBz4nST5lqP5ePuHCJoYqsnP4ZKUCCw==
Merkle root: 47aef0bbc5d347d2f064428fd7eda9e99f7cea2d49004267bc87db0e45c42023
Merkle path: ["0d02d4707800fe41bbcca530e90a71f0ed257b86a4fc63c5cdd988dd985b7b22","c73937d7baf4bc94f7fb6747ad7fe7115576d0e4d8d2835c3caa7affc67bb08d","bc29a2870443d9c1a1827bed60a4aa529dd1c1797e708a1a8b13247703f165e1","f022dabb5516781aa7e222507db8a25dff7aa33f7547ceab39a93bf788c508e9","8f2fb5b1a999f9b76f188fc591f3610ebc217283e1ed457d535ae3130cb57d25","e43ed9d420f346094bd35180a27028c8fce68206ca486e4ef3fc1e479f2526c1","313fc40643d4e6fbe257d025a09903fd82d952f95b8d8749022733ed9c4ee19e","29cbdea6b411a8f2868cda64ee994b2383184cc064bf33cc55d0d6951358577d","9543e795a5c3f1428c2a45130a57f5e213d2b577e3d5017c244975ab7671b95b","1e238eacdab408f9c14ce63e3fe2e46c33c233ee36f04fc1ac5f6235c0d03b38","aa14d8d0aae31b32edda28aa8b8f4092c2d18df8de4fa23e8339f5e6e7e95875","6d021997492f2ec6d3d50b9ee12045d976e267450eb0fb1e31110be8dbbb6f38","e3337465312a8871a96efb0ade03deb67d9f2b05a969c667a895567781acf005","0889ae3150c7685b34e529b715a23984c1ad15ae15f158815b083df85c4c26d0","681b858a978b3dea64df3700a937a058d6290a8e519185bef8ee7388d7739dda"]
Anchored: 2026-10-09
Public log entry: search.sigstore.dev, log index 3162173160 · entry 108e9186e8c5677aaa5c…
Expected log hash: 00d82a97e8d5da8f3bb4a78d598390d6b030eb8338f0e0735ffde6aa5047ae68 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":"v1791539060014","kind":"published-quote","locale":"de","page":"brand:acrobat","quote":"Nach nur einer Anwendung","rating":5,"review_date":"2026-02-03","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 (47aef0bbc5d3…), 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.