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.

“Très bon gestionnaire d'e-mails avec toutes les fonctionnalités nécessaires”

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 3123908662

Proof data

Record hash (SHA-256)

0ac20b979dc1eae9c6e1df34045e86fd6eaf940e9f5a0a1da49aa344afa6f07e

Signature (Ed25519, base64)

HK9fCeiUE89qu5duiDLIwVpgSeSTiTnFfFEI+YZkfr7mjUe9rcwuNK93yDMeATClpVeKQ3kuviQ/Y8leZNKgAA==

Merkle root

c53673589b1f41937342019e079ee2c0ad1635342b5b2a41cc71894367084fa3

Merkle path

["0abe576e6c5c9c8e1be4691bd8ab657177fcf5ec8d66e97935431fd93409d878","26ba597cda4b8ded99929e1b08d78b2f35b435d0890025474b00cc6e9e98e682","ab2572a5de76194140a4f8ce7fb138df47244b85c6a9cdbc3aea6cb350af8b5f","7e5c2fc265c3d240ce9e2ca5b9ae286edac9f25572bac08fb8d72e14f3fba2a9","fb5aeeafadcc75d27c7e19019a631a0d5345cda194f02d37d8f51c90f22b4c2d","6de7602f694258f2cd4de142f1baca89e9904afd8aaf39ce6a1eb8d9a4076e71","6443dac54cf9ce387ab1a686acfd910c5488b84f5d9cd8f1a3ee70aaf3ef5be0","e641be89f9392077aa8e63f15c2af1588445771d47221a68a388dd542469be5a","115745e5c02657f6189a1223561c2dc89aa404560fdc4aed6014069d6e44024d","941f74fcc3e3bef4336658366943cea59607dc70117cd057d867d1aaf6941b2c","98d35751d7b4353baf863fb383f9a6d32f1f24468c0b6c5ba0d517ea801d4e88","819fa491974273a7a11f5a702a87a424f5950ee00dda5f56978785f4dbde325c","6347feddd7eaf9469d389bda6e1b8ff87765f8c85d403613f77df274dc0914d3","60db5b960c74a953fb3ebb541be0d84a0946a38e137e13155b739ca3fdae1b05","8308334b0715cdc2685afc133c95aa85c9b86c8dab9c8659092b74cf2783feda"]

Anchored

2026-10-07

Public log entry

search.sigstore.dev, log index 3123908662 · entry 108e9186e8c5677a51cf…

Expected log hash

5372e71f27172d067b5d688f48846b5317672647da39397abf474cf22aba0576 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":"v1791348381030","kind":"published-quote","locale":"fr","page":"product:proton/proton-mail/fr","quote":"Très bon gestionnaire d'e-mails avec toutes les fonctionnalités nécessaires","rating":4,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.protonmail.android","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (c53673589b1f…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. 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.