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.

“Sehr umfangreich, Super PDF-Bearbeitung”
Google Play · 5/5 · 2025-02-03

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 2515095234

Proof data

Record hash (SHA-256): fc1b53a2315e7c430ea42f984f7f2ea090796554336fc1f69e1e58b74e61c7fb
Signature (Ed25519, base64): iIdWh8UbRAKEiNuCILGsjKvPNdj0vx6N8vXWPS6buTtI4nNQHjiNGthzgq9wZ0mSo+gkfZeu2bf/UQdavKXwDQ==
Merkle root: d9909e7ff193b610d96d9930fa8111baf2fdaa08b732478b03ded2b9e1e52914
Merkle path: ["fc181c7bd2fb13807734b85550c901a8a4bc729968369bcdf07244ebb785d3cb","6a77082f7745ef87f566a0b9b3a3924d2b76a42e6950a00a803e79edd16524f7","8deb166344b9a5dfc9592f5085f2de907c5d06071181fb13c106f0459e873f05","2bdd48d230611652271fb9ada5c95c6f8938fb30415bf753e3b8396e4e4b1aad","44569c5cafd3c4f68d417f94334c3277639307986512f69f94c6b2cd1717cc2b","176c77b91ac25e6784db22565fdf274227e3d55aa687d722b44f41fb384ca15c","d22daba4412ff2275d852e164f99443eaf79c293bed89281f196aa35f44e0475","55686a5dcdfd0f20cfdc64fd0bbc8b7844d6994a7b2094fb7e7dfc117b25c15b","f3bf98b1123a1fe22020a357010a60b573d9d4f39bc4defc99cbe484a66e1960","31de785c3327c2058649cd0b9bbb8b25f7dc0544b85d4d0d6a65c403907e19f7","8a909dd29a200274334382dfed19e4329e769796db8747d226433e3eb32c67fa","0ea8b66b67f93a3bb16d6bebbb43a56eb438bdecc1bf401d458a7c17e5043ee0","1bcb7bc00b1e5cadfce7b60cca8099d462417180bb3e0559a6a9a3ef44be52c1"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2515095234 · entry 108e9186e8c5677a299c…
Expected log hash: 6f0abb2e15f57da153d99eb9fe756fd2540bcac51fcddbf7ac60c4be3cfb5f7f 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":"v1787136684512","kind":"published-quote","locale":"de","page":"theme:xodo/returns/de","quote":"Sehr umfangreich, Super PDF-Bearbeitung","rating":5,"review_date":"2025-02-03","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.xodo.pdf.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 (d9909e7ff193…), 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.