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.

“schnelle Lieferung”
Google Play · 5/5 · 2026-01-26

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 2544092674

Proof data

Record hash (SHA-256): ffa75a344896dac872485b2c3ac929b4789bf27245860ce0dfa68216d7c5a55c
Signature (Ed25519, base64): kQFEZbxwP0vVOb1kp9j0lJqZ9y18NGrILvdvqCU2FAYaudlC5quLHtg2NgosQF7dkCSND6QWujISq+IANyRCCA==
Merkle root: fc0474f2ab9253f8c52a81a0b2f1ae382f5f022f9b54f4e3fe06eadaf19fcf31
Merkle path: ["ffa748460e6f42e1ddf9808e1e091e0c67cc8912f20f6c7087cd78db90777418","fb0fdd30971d961cb06c8034d5c77d01f0c77dbb344e97d68fef096b8cbdd69f","84f5efb426f89d06573823ccf99d80fb0cb5f9f118ca9454b0803fe76d3fba45","74088aacdc2d168745a94186806294890df2419295e11633bec673f082b6249e","6eba96cc61ab424908a99203e5aef0b3e82709ce1176368a3b2764d30e906ce3","e07cdfbcf82290da50a50993d182f08cf894d3486f8f4fef21d7029788850e80","20012f899ebd418ec35cff3aacb6f52390a0737478a3fa65854f1d3d9ca26221","3e4ea39bc8deec6abac8c8b8248e676db4529531ce019e0c649cc6e65402597a","268e1b3001623292090a23da450c566bec174080a75e1131619708bbe9db5a9f","bd1dc95eebec2e3ea42202d8fc9d2d7844222de2ffb10d1cd827304a368860ab","b3b6fd3f87905e1812547bf59009605afa62c4124a0a91cd029c06d177d44441"]
Anchored: 2026-08-21
Public log entry: search.sigstore.dev, log index 2544092674 · entry 108e9186e8c5677a1b30…
Expected log hash: e3ca1014bd6a1a766a29da72cd2b9f7f9c6c416fe6af720fafa94eca555dc171 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":"v1787289954326","kind":"published-quote","locale":"de","page":"theme:acrobat/delivery/de","quote":"schnelle Lieferung","rating":5,"review_date":"2026-01-26","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 (fc0474f2ab92…), 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.