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.”
Google Play · 5/5 · 2026-08-12

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 2684346356

Proof data

Record hash (SHA-256): 088c4eb9f1dac80a4880baa32bce03da4725d1971d494a188fe1458b31178871
Signature (Ed25519, base64): PHRV7bGYXi5HPvNsmPG7Ns9twrmRCAQuIUi0v3VI0Heuvu17R6G2a3jszB1B/e8IN1QKHKA35whjFQdnP98UAg==
Merkle root: bf06d03d174707f535c1833af2fe5d51e1d258f061223559344b34f56a1fe592
Merkle path: ["088c8729c9109a6929e0dc77e6e24421255aa2d3136675e76f61d1fd35084cdd","7a8e8ad73ebab72864c4e7e41e67f0b3d7c6f3df2a6535cfa90b295bac7790f2","85eed38bcb253f908788a9242ab23823355e78a918fd65b13dc1678534590f01","38e2de129a2b6fef69558881b34c37d45917af8ac54a0e1171039caae7e94a45","2c442642223328a2e7ba35785cb256fc3d493843bdc15fb00e848c9c97720b33","51836a7189f2e30fbb6fbd7fa1b677b4abe808c19adcdeddbf5263e39f3d4e1f","0da80a22bdfbdc04e29ad3dbf6c8a1d5090f30bfa194d6ef1594681934ef3119","2a1fbd9a4e7956f764acae84b41e6a92397d1b95faa696f3764a0f4a723b28b2","603787dd508181c657f252d854b346aa81a29d1d61c30533fee167b757ed52b3","c109064f8480adce9270ff22e98f3872d2762300384d4fac617c8eb351c1a884","69f8226305b00aaf0c4944b493cb9c56274ef008c03a0640b667b520413fa8f7","879b1c993b0c0814b2a75d570e70b17b8c28d50568785d86a369c01aef9cc8a9","3492fa2427a95ac81a05d55f826772e439a4f5dbe5c25418023e367993106e04","e61e8c9172ebccf404204c12ed180f9c4b13c940a974e219cf0d945d751fc601","7e649292aa5430485d2f826d445d528f8e95727e1e2103ce6cc862417c028321"]
Anchored: 2026-09-02
Public log entry: search.sigstore.dev, log index 2684346356 · entry 108e9186e8c5677a5932…
Expected log hash: 21bf9008ed6eb4689ee11c1c7859f0e94084281b2b2e2088b1d7635165466b55 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":"v1788337894213","kind":"published-quote","locale":"fr","page":"product:proton/proton-authenticator/fr","quote":"Excellente application.","rating":5,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=proton.android.authenticator","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 (bf06d03d1747…), 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.