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.

“Alles verständlich gut erklärt”
Google Play · 5/5 · 2026-04-14

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 2543266411

Proof data

Record hash (SHA-256): 7b397c6aad0806d32a47e4bfb0730667a5aa54d5f13f34d5369cf8cd3ecf79be
Signature (Ed25519, base64): wjXniAROf1hgtN6t9NFosM6jVO73bimfsz7jW4ClhoHSRSaAO49DHQSOgb6zPP06yt9wgK4l0dFb/8cGRSbBDg==
Merkle root: 8ffad6e97d1457610bec7a891f189d1ba7dd7a92ca672c69ff1ce3283acb4b5c
Merkle path: ["7b3b6dd0d45495bb012c0f4d52908be10664e9ff4df1103cb0ff8ee4d2cc95b8","d134bdcd134cfebcf452d7bdb2007e06616c8b6e0e758037b1d82352c8874e9e","53edb5415f2c98a9878e3955603e053caead31326a71d9e30a9c9e18bc71eb9f","d2d3d20e0bb0a2c90fef98fc37fc131801f5d78b6cc7bd1af92521a8a8e389c2","71ccc380422018eb83b65d71ccd4800fa3d0e7753a85dc220045b9ef93026b67","679c7ef8c034c668affd60618ec2e2a85cb680373f9bc7e53603542fa2041eda","919440799f871a44557f1be2806f883726062b5e1a78da65f77b0ba3f357b373","84c4c3212aa3bbb776a0870c0921ee56e6edd251c53b4f36c4d2137c8826fedf","1d78368de4088cd0043abc143239794dfd18418d4eb5b23d0ee53bd17c5ae6cb","04792f69abac50a1778300cf634713a323d268395490519d34f88287500ade83","2c34ec40b1b749ef91b874f80b8387c2597d501bafbc6819a8cdeec42d5b44cf","eba17e31df34bc35ff2b11b5fd8c1c79c41eedbe124c72b666b44d82ec96dbb8","f2e2a00cc4b5cbe26cca469c9d688a73117013587613411406abd1ce807fedcb","9d2fe576119ee6748db015f1bed3e423f559575b84b49b458e2b5fc136d5fdd9","e9f7ba9964da1314f660fb2f84a68d574ffe9983879b5b54001a09ca5cb5f33e"]
Anchored: 2026-08-21
Public log entry: search.sigstore.dev, log index 2543266411 · entry 108e9186e8c5677a241f…
Expected log hash: 443ef8f29d5167ebb4c56a46778facd07b7651afa8db2d089c14a991ce0d04db 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":"v1787284817344","kind":"published-quote","locale":"de","page":"theme:acrobat/communication/de","quote":"Alles verständlich gut erklärt","rating":5,"review_date":"2026-04-14","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 (8ffad6e97d14…), 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.