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 2543383844

Proof data

Record hash (SHA-256)

3097c0a3cb534251308924260da4fee0272573d8755a4f914d43ede3fbaa69b1

Signature (Ed25519, base64)

hjfAN5jjKFstAcLR1UzWfqHVpBazfk5J+Qd33/QBxOhEJpUAwSAixxTseHFcRsZg0WoyqCQ7IWLUg7MSHOQEDQ==

Merkle root

7252afe559009950531df937e7edc9bd1c57cf28a24ed7f6c6613b65f459eae4

Merkle path

["3097fa47689718d545dff11f27d8cb9a6100d590463086efa3c7ac0bdb48eb0c","d6355edef5f41accfde3e3bf9d8e6acda74d7a0c9c8700d46261348c9d94f133","57223a2ede58665c7f0514d4282378597b919607a065c74050a7422e3ea86d59","3b4080ec704321ff39a0c87619603aaa148c522c09d01ae4ef00b3f263cb28d6","31b05e7d28f763355f8f4a00c25e42d74a4e8a839110aac208b00a41caa83f64","967b5e387f19092bb6608ed64d4f405e61246ae8bc8cc01c40ed60e2e8f5cd3b","da1c38917a9b27c0a03210909382de0119bea7c573bcf48bdd6d06324f9358e2","de2a41a00097d40272a9736be487c36b3c3e702521aea864160cc08f83a5bdf0","7ddbc2e637cf6117bbe67cfc3f256612afd6c2e17c33ce2be8958524a2c7338b","eee8b6b4fc3fc203ba370c0419884413b8dbabb521dfc67fd0162766e5a2cad6","afba62dc4256d752b956627617d4badc84c81b9ad432d1d93afb382b51ac1081","67de801f1bc1ce81ca75edb69bd246d9038267c0b62d867a6dd1be9afc2acf7f","5b655ce1c6b3a6040c73fe70cee1f73a87a67aa56ed97040e7fd88f9c78d3e1e","6ca0e672260f8a36160629905eaed49c49821fe80001f9ea932f048c0563803c","b3900b15a2a9b7aa805b691ce86e29db39e03d547238a84a3c0fff4fc2daa54a"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2543383844 · entry 108e9186e8c5677a6025…

Expected log hash

65212d488cd7bdd0d67aebdd70bfc57f4b622fa08b8179427635d69eb7ec385b 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":"v1787285599851","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 (7252afe55900…), 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.