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.

“Excellente application VPN.”
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 2495080079

Proof data

Record hash (SHA-256): 1e3d35d48fd3a4badfdee85c8bec329e7f5f040a02d51b9dbdf3655da2f605bb
Signature (Ed25519, base64): +v3DHI4arUnym1cgdBBX1oLxbbMT1y4LeyJN4mXH/P0Kx8biqcTnsYK1AW5Oj4tAlTspOVxQ4NKGlCInWn28Cw==
Merkle root: 8d67e2bcf9805e0b1a8df77606b15acf66159247f8bb79b05bd35275c0fcec76
Merkle path: ["1e3be2d3755a404380caf415109eac1511700edff665064d7acda9612fed22c9","68f06633306430cdafd66ac88a5253c911a7abc8d5b4f8495db10b4ed4e7464f","a0f52cc84a568ef3022f46540827cb911108125ac57d7338b100b37d4573b3cf","5a7d30e81dd521c03d6bb2036ff4840aa246ddf2d2ddd7ac1fce7d4172ae5067","b3a321d4d480ee14c2bfb7d71c82bde4ecf222f250e4c0321ff30a1a0a286acb","f5f0be8cf533a12f021d7b6f395721ccddcd89878fc883cfdd4f80aaa0e7489e","befd15f801687f7e09819863ff1ebacf30f9054f4bc25df5198ab05980389bf5","c299097e6f689c71a6731c4508f795dd80556a885340ce4babb5b35cacb52e68","82105987391e92dc6b2e978eaa612e94300e8f925c3e02bcfcfa486868bd8666","a66d4a5dc38786ffef04d9c2ac51ace48de82989b76c7061fdf789a10ff9afa8","b0b2dbc4450a75396269c1bf719407f0cfb344b16998edd43b129afee9e930cf","117ea5c3db142c96a53628e5111e498dbb272646e12f3a6f5f0e70b74f1d4bbb","b8340e6c18b4d1588710ef3da252a97aeadf8b81e38e5ea8356de094261397c6","ce0b10b516be0e5400d450b53fe2e6a69c127d4d65cc0d30c91f36c5854d14f9","97e661a2eddeb4928d5775fd03d9ccf894e37679b396aa55e3f5afe96403c473"]
Anchored: 2026-08-17
Public log entry: search.sigstore.dev, log index 2495080079 · entry 108e9186e8c5677a381f…
Expected log hash: 8f1bc5fb0544d3d4a0f1a678042f499dfe582d5da406706275fbd6afb0904596 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":"v1786934111436","kind":"published-quote","locale":"fr","page":"theme:proton/quality/fr","quote":"Excellente application VPN.","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 (8d67e2bcf980…), 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.