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 Beste vom Besten bei den kostenlosen VPNs”
Google Play · 5/5 · 2026-08-14

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 2515243153

Proof data

Record hash (SHA-256): 0af7e41d3b3138bcc694422d38434d223d49ad1ad8bf56f2e75fe0ef5c635442
Signature (Ed25519, base64): u3OvwKQ90rV5bb8+jOHKPpGqp8dWuDf7em16A/CiCWYodqeTARSvjAYY3zUcj8Af3sEaqPJTezBqOlQkpW1HAw==
Merkle root: 30b81ce96f52ff8c37a1dce6a2cf1045c2f51663c1ddbd5ca071d040e32c05d6
Merkle path: ["0af7adc8b260aec0c98ad6b55a507239a33c1444df2aa74bc693158825fcc263","be6b0b5fb953b3da9663608b206f441794a4047ca1c887da23c39c824163b29e","47af7be505b08a7a6acbdd1f708a538861ea17ef71c71c2d30e63d5213b0ae37","b43c8ee8ec6188b33f029e0d1ed6ba08e02b2916a9633dcded527784ee52226d","c46fd17b7c4a9d143f9b130e042474c0ce4e22b39312bd5351a6758b893228e7","a346ebfba11558c6d9de2516b3f14439a5881acdfda26a070abcc961c5aa328c","d1987babd99c17ed3119b6686072f85d81ab3148e56257255ac86e85fef34db9","405ee5e03c18dd7040f4a199749e70257add7aa7608bc1dcda8be79e6073fb13","2974affd5c0306196b6840c80239b83a15203af13e998f33d61ce01f02b40130","d8faf66eaa3e8375c032aedab706ce13be49748f4f953dd9a213715e32b15134","21b842f37e0f8ba1901a50bb45c82d69e997d816f2f9ca6c720bad1ca0da477a","a2256427495313e98c459069132e7417853c94b24e75c257deff8b35fc6b26f1","bd7ac11e6e3167391f14df63bc65a4bf46202d1841b8198af1861fe0409c39d8","d2f0bde8db363c9acc10fb20e031bdddc43b684fa5984306f2efdec113caa9a4","dd9b0a9d584b044c4116e1c10c4b8cf4a06383a771a07c9f3d39f998f23cf36d"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2515243153 · entry 108e9186e8c5677a8eb5…
Expected log hash: 314ca716b1ad71ca29fff6da960e81a719fe30fa5fc14d8646acca79a7c09353 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":"v1787138594002","kind":"published-quote","locale":"de","page":"product:proton/proton-vpn/de","quote":"Das Beste vom Besten bei den kostenlosen VPNs","rating":5,"review_date":"2026-08-14","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 (30b81ce96f52…), 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.