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 3177778280

Proof data

Record hash (SHA-256): 2098a1b17a38da323d11a15801620d69f3ae185776f5a3974d6d737558b05eba
Signature (Ed25519, base64): caXjLPzyPHg1x1z8gY+rrKim9O8jYq+Kd9SxbocpWa+T55Uzx3RwyTgrGtjsXHV23xyINjgKGlTjxuga5w70CA==
Merkle root: 9bf5e8bc71b8f6d2ce627972b9fb81fedd792f7b02f32eb60fb8da440673ef59
Merkle path: ["209b425a121a81465f756cfb2f0b6884dbeae9d99a345b39b47ce758a7ac1ba3","d448867a86b02f74f25ad6967ab30238f87bf13a028d7805c083ffd3d4799b9f","8be9aac5738354526a7ffbe37aee0c95fb8a0617d07f5ecb6a86f6af4ce001a5","f78ba829427721b62b95b10a4cdfd04fa8d30a0813431b8b56e2340415de1fd2","f02ad5a99e1c5e187374c4d90f9896391fc1dbe5b4254f603ca1fecfe6bc31b8","ef9f09c9eda78c251b24fba1e41182e2c078708d3b644c523f35e80938696ee9","2079fa876805f5dd8054aca75fe5c5d9737d0a7b1f813283fec65b1070ab0d8d","d85dee86d2efcb8747cbc5c0edae2cff0e5bf56a7b27916b869ce6fcc4eb967f","69c99a6ba32f9338f62bb9e7ec56857eadba3f8808a97890ce35f80eea15fe0d","a5d59fea3fb2ab64c66e8d19f9e210b772212270768bd65f761204d2876068f8","633dc26335fe45f33f3010a4079a2aa60318ea8374c045a7c9c1cbba090fa33f","53dd6904824ad544916531788d61c0e418742b30a49a317c1dc2fd8a01bbcaae","fb42483682b3119978267e05c9c995226602ecd8627ec630ce52b285c28faff3","09f662acb98b118c251b87092b3ab5baf38f48e2410961a49013a1c2f63f4cf6","1fa7003be7676d7952d939a45bc47245b2ced828dca06428675c885e312c802e"]
Anchored: 2026-10-10
Public log entry: search.sigstore.dev, log index 3177778280 · entry 108e9186e8c5677a59b6…
Expected log hash: 6b6bda8efa0d998f344024bc1a70908bd21604d8857c81e0a6e6c5b1de7aa565 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":"v1791603230890","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 (9bf5e8bc71b8…), 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.