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 app's scan function is absolutely amazing.”
Google Play · 5/5 · 2025-10-18

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 2543978942

Proof data

Record hash (SHA-256): 30b8e768ff86a31bc466fc2869a411417a00a961bd5aac9fb11dbd2e140fb207
Signature (Ed25519, base64): lRTi+rdjtKqY5oZOdGmsadk3JyIUIPxIYuSQNvSlMwX5/3i/va444lzNMhc02S/SfTsJQuvIB8pMpl2AU4ueBg==
Merkle root: 3ea09355a1b22a15fffcd33ac0d37e4039cee2896092e637dd8c4e7dfb5d507a
Merkle path: ["30b04512200802eba07e1bab5077ce97629c1e6a559bc742e8a36b778e63922a","13e001c3cc80b3d3aa618fcb964ddeb35058c2ba900316f9ebb1717957f21f74","894b8a6ddb0ccca7be3294d9c30006394d68ebdd046bc50656dde0166c020a79","e2351c9c60b84f16eb7eb16ac11577b063bdf9c0cbcd50b1f23ae3cc6676a70a","3d2ba11dddac7caf880ec8dfa210ac46567c3d4e7a378c6da472f076e7f154d0","e59856552de0d7863779f318c7b1ef25438d93037c8dc43e4bd4fb02cd243a35","e28241ea563e421efb6ce19ff7e2074f3c64b8596a4907451d00dca8e6a20525","ed052cd06400332a827ec88a6a9e4cad73a793500a4062edfcb174462996300b","9b3976f7535881fbf353f589fd858bc91b201cb430954328b618be910848d1f1","82068fc69d4939a73c746ed715af76cb59cb9ba477ea9df7839cb265f74065ea","ff5d4c1dac6e12be6855ca1b8924a8bae476096f5af7c614804b181a80aed4b9","db7231f5c7370130b5ac23acdd1afd53edf315a3f1f1ab1e0c162efd8101818d","d6068d4ec75b75f9574a0a861640ba111f52465cdd49a59f89c94af17934576b","c813a34665dab5ffae8513e10cc2fedc27edee77c70c636abfc3ac5275137875","331ffac0f34e1f76cacd782a04285f7bacef5f5dffbd1f8163703fce9b22280d"]
Anchored: 2026-08-21
Public log entry: search.sigstore.dev, log index 2543978942 · entry 108e9186e8c5677ac836…
Expected log hash: 69ff2d97383073bd392d75b79533a80cb25c69be55aee7dcb24b1acf4a379172 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":"v1787289230204","kind":"published-quote","locale":"en","page":"product:sevdesk/buchhaltungssoftware/en","quote":"The app's scan function is absolutely amazing.","rating":5,"review_date":"2025-10-18","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.sevdesk.sevdeskgo","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 (3ea09355a1b2…), 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.