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.

“Ihre anderen Dienste sind ebenfalls sehr interessant und auf Privatsphäre ausgerichtet.”
Google Play · 5/5 · 2026-08-13

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 2913636507

Proof data

Record hash (SHA-256): 06443016faa82c99858ed9059bdd1802f57ba328466c47040aa3751c29217c95
Signature (Ed25519, base64): fA6yI7TBaLTrQlVARwa4oBjngC32PVg//zVj86eep7gOtzSWxG5wvZQ3R1Vh30ekhEO8aKUQBBETjrfnJLlRCw==
Merkle root: f26292e960b34f73f9768b4afc64585e265549d794b35b8167826c2bcda92ef5
Merkle path: ["06440e2204b61bef41fedf755f1abd10fdcd555a94d3ddcfad56d0e301cc20da","7cd57c91db2220206f1b1a4182c75db89a5789d04b250e51c0a635610546c961","2c597df82d47aabeb11da88e42030971c897648a9f5b2d11d81abff0c2e59372","c4328a4babaa60d60bab21d40272871dba612940ba568fb8cb1a6c09085287c5","c0afc90d6026b005edf6f4d232f91d68a8b5b65bd8d5170d279820dcf4583fbb","f56a1cb3ca68862f0a808e05224c30b266cc0cd4aade5e49c6350ffc32489c94","4e3bd643adf7fabeefa9b827fe30f2e849bd345df982379256ed154bdaa9ef8b","d6393bca1e0dda14e73bc2ea4852bfcac9177e71671c5b4334181965fdc7eac5","ae0e11d587d2944faa2eb43e75aac5138e67fbbf06359bc28fc909c88e400b3e","bb905c221822b3aa55f281a067a05e143db06e9d99092fd43a7cc42182d341df","9ae6119d5ee9be570d06c86aeca4c3e551adb30b5cd935ee702e9cef21b97b78","61b50ad04922f327345abbcbc9d231acfaa1042078046650c0d690ade7d11fb4","14d95cb3ffe81dc7ba7bda02f51c7ab9c1977951e0a9ce587124764e85380fa3","0cf751b4d000491c43eea40a33568458d763987b542601ca0644e491c0b04ce6","e95e880a53b013b49906f2e6b9dcc652726333d77986f48029bb634dc427e2de"]
Anchored: 2026-09-23
Public log entry: search.sigstore.dev, log index 2913636507 · entry 108e9186e8c5677aea51…
Expected log hash: 417fac9b806377ff48d30ded01faf8424eb98406df713fe2564ee9077747e6a6 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":"v1790070376053","kind":"published-quote","locale":"de","page":"product:proton/proton-vpn/de","quote":"Ihre anderen Dienste sind ebenfalls sehr interessant und auf Privatsphäre ausgerichtet.","rating":5,"review_date":"2026-08-13","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.protonvpn.android","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 (f26292e960b3…), 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.