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 3163352270

Proof data

Record hash (SHA-256): 07717cdffb9bf801e31f68a4942a32d884f83e3755dd61ef0421ff9ce1468055
Signature (Ed25519, base64): K0xmzQq5VB/m0YtRw7MQb1GS91oGuJEy44uCXfta4NAi/8e33EgsmAa9irdkVZe3A3SJ9ttGosKtYRF88l3yAA==
Merkle root: 784ff8fc3c42eac43c7d399f0d67bba55d28073a7e106789ae0c6c3f5ac9dcc8
Merkle path: ["077d4c709b7fd7ff6c7f206b3fe5a7b5fc2b7d0df0ca26a3db71e239796365ce","c8d14651e0a364fb849e9d9fa0103588eb85d3205ffeede980e91c429dd2d0ef","ec728a845d0734469c29ada92a62a291ceaab70bf7788ddc92979d72f5e101e3","9980732ad6d3d0d5a32817b08226fd9654588cd4d13a3463db2ac07a1011f6cb","2220bc00081953c7296fb4eea9fa1a4a56b8161ad20de6890f438026861b9ca9","94110528f5441fe04cc05b7d998bf9ed8301aa1739cb4ac365f7163d6dbceaa1","7be1eda9a0492d63d0a12fd9e870e491f402f04a920c6d5c8d8da5c7c116f7b9","fa49dcc9893257d6b8c52889f870eea7eb6a956a08ff05c83d662d232eeacdc3","be238a8d5bdbc00138e989cfa51464d3f76541a7c0f91c7ad0ae71d52573cb5e","54446f07c4ab303115c023972d8ae2c4584483caac109ce24d93fb0a4da3964e","b6dfd79a2c1d2a6c79a9e35caacba7bda42383d9f766320084882d228befed34","c72ebe563668e58eb29ee8ae3c5ee657adf2e41ca1680bda1301b8bc24ffd5cd","b2e795b1a28ca13f7663ed8f62127f0cc32efbf6296671f3d7800b760642c1e7","7c65cdc9460755a327943aea2ce97e2f5c6080d778d9434fe2dafbfbc1e3b04c","5fa09e3847513934bffaf71960ac2a100e20422698698ab1e19a4fe8ac133514"]
Anchored: 2026-10-09
Public log entry: search.sigstore.dev, log index 3163352270 · entry 108e9186e8c5677ad020…
Expected log hash: a3ae0badac804d14d314abd0e71726d06a96c43a3840dc1d63acded9268c461e 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":"v1791543790412","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 (784ff8fc3c42…), 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.