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.

“The layout is clean and user-friendly.”
Google Play · 5/5 · 2026-08-12

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 2514496096

Proof data

Record hash (SHA-256): 7821ffa99c02456cd8ea7e78cbe46a5166bff5cc7549891fd10093363993afb0
Signature (Ed25519, base64): OQRsXSCt1AgKtmN9Yo9tjWa/y9BZQxQ4PFm5YkzfStunYzHjKpFYbD/073SIU0Y/rM1xjtClB4Wzzb4WH7iCDA==
Merkle root: 790984da83ec061260aa072fed7636f9dedf91964fe0be93d7a7a622b2b5a92c
Merkle path: ["783281b207605986df3eb74ae86a87dca66577957fa88ad85d5c0e1e2e28d5eb","20292aca56ba013a03d2ea626927e9a2174590f6e045933198e152a02237197f","57b2f6ec708c71723dac853f10ae2af8ba70f4664d95b442be68546e3cb2a8d3","01049eb2803826ccb984d5ccf6a5e2810df91f1849bce6b3bd1611faf6c013d8","53ad4cf5d318afa624b4c8c2f21972b028d13be1536d86a26a72aa9c60eb913e","55ae6f0f7e0b6ad9b8497dd8f5e575e4f3007c1ac88253f641b7c9b07747cee5","d418abe580f4ad46a4d2f3d618137b0f44e7d0aa17295a1d287b92f9a5889828","ae7cd2cbe7f9c931fca9b64eee591323e00d1665ada0af5b2b795af1375c953f","a8a798fa622417ed5557f4ba79f685735f0e8f375fe5ceb625dd4db2f3296455","fe0fcf0db1751c26de1775389e4fe7cdf097fe9e528b49bb5be2ae732327dc9e","fbc139fe89cc7a09fff0f920bbc09b775cd6118d75781676395f5ba612f9eb62","49405d6ad53ec2bd1693ac22ba29821dc2d90972fc3e795eaadae1ec309d9f68","6119aef4031d03205576aa94cf7a51dbc6eedfdd420d909f325579401c8abd0c","19cc354f6573191d4e7914f94cb811eea176897530d869ad83bfe3cb7fd5f206","c7feebd3045cc2c03d87ca1241b2d06259ffad35db645c59ca3c5ee2004a8947"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2514496096 · entry 108e9186e8c5677aad27…
Expected log hash: 5d2238ef768473286d75355f523ab94503f4ccd3d25e17e9efb265aa0f540183 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":"v1787129810322","kind":"published-quote","locale":"de","page":"theme:acrobat/quality/de","quote":"The layout is clean and user-friendly.","rating":5,"review_date":"2026-08-12","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 (790984da83ec…), 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.