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.

“Das ist die beste VPN-App, die ich je benutzt habe”
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 2929513415

Proof data

Record hash (SHA-256): 0c1426a1f14c05dbfca1ec994590798c3f31533b5728010f8dd668dfcfb736d3
Signature (Ed25519, base64): 1l2LketOf2ByodH0JJHjijNLrBUzth5y6Xq9+mOzvfSIfbO1PlwsVE8KLoA8nGhkQ8w1CIjoRgQYR348BhofDA==
Merkle root: 277f678086a68384187ff29b395b0fdaceb8fee69b57cef3cd060bcd7a85a6f2
Merkle path: ["0c152c46d80a481de829c2ac83c1fd6606637922c86f1b0696d47cb90810cdd6","1662e6d33daf0e657cd518bcced597e8db8ab499f340bd7b537bcfa64fbe35c2","95a8a11c9fff195b265bc7ec7c5eb17798efffe33a925d0ff0a14a0d6da008e8","6e6b12c6e2460440f60c816a690d8b1013d6607bcb3580af87ce9d6248baa3a3","778228f4be31e6d93ebdf04e7f85bfd47fa089c7ffa8cb3372a695bc947d581d","c340c8c18628fcf44c8ae161c7bf56090e55e74b64e4d4a6ca77709bb3198f8c","e6a3c909f2ee58bc04265f8f5cc0947689d05cf73e08b0d396e05fced4516464","ff07598a9206749ef371957f89f951632cbe23b24738551cc96830a90a886bf0","f70357c35bd4d892360c81f33ad7b76a093c493c9d5a7570ff3f419c54423e04","71939ee63a911065b6bbebc4bd178bcd2700347e17b744603786811b9d4940e9","dfbd04c933f1a6e783ed09f1fc088054f8fd53fcd06c493478b5ca49c6e3ac08","518ebf71cd3bd28f38836c9196aba7a4489e76041e1305d37a83e79b96ad8908","3f2c82e50b36e0cd50998d163cc94eed6761dd69609ad29f5eed30a1c7940054","1f7b489a0f1f52a9099db1823d706668c4e68c1e17b4e235c9596001eb5af1b6","280ab60d4c161cb719b6156fa9102f006908a25889a024565b61c42f89983a6c"]
Anchored: 2026-09-24
Public log entry: search.sigstore.dev, log index 2929513415 · entry 108e9186e8c5677a8264…
Expected log hash: 9e91de35fefec2dcd249a303ecf0c84a118a9b2cf5b39f5a9ff4368de67598cd 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":"v1790137911951","kind":"published-quote","locale":"de","page":"subtheme:proton/quality/vpn-geschwindigkeit-server/de","quote":"Das ist die beste VPN-App, die ich je benutzt habe","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 (277f678086a6…), 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.