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.

“ce logiciel fonctionne très bien”
Google Play · 5/5 · 2025-06-12

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 3138947147

Proof data

Record hash (SHA-256): 65a367a2ab190b63374f7e8b770e1451291e4e6eb81f0ab6ad0cd5607d895449
Signature (Ed25519, base64): 1cmcFKo15uLi/60dfOLE3gwWfFF9MtjVPbeBRizgOQIeIPo4jjn1pX3tc9Qsp0hIKkOcQgW4D/DupfACEf1pBw==
Merkle root: 1b26d1b85473caad1868633ec4c931eb970e81199eea87926818f3f1753af37b
Merkle path: ["65a2f168d7d1a82146d117de5ffb9b02b4e8821fea391790f8f1987affb5e8ea","94907e968231e1938a440fdd4990842f92299128be5a26bace8743ca75d443bb","6ccec981c275152fd7d94832874cb58b9f0f40f9462415a10972c37f4de0b3d3","f50591144541bcce7bdd8dac1b350bbb2ee32e90a6fa35f103d562ddc31bd268","ca6047d9b519dae4b37d4ed4a5e2173186384ee726853e20194e8a70feb6a3a2","056eff758f4e8985d9fe3038f353dbfa5e6b748aaecc86ce80046977017ccf8b","d341d8e34f93cb9b9475e01ed943a0c84217a4767dc4c37bb13ccc5d3dd1fc6c","72821360f0421e3630d5180158f27ed48a0168c09087565550efaab2663bf178","0b23261aeeb85d795257e002fb2cb0c5c89b1db9355f0410dab42428c3878625","a2908b5cbdc5d777851dd9c5504d58df65b121a27be2fa6e8c7dccc88754ada2","0fe34c3fa439682ea425191633a146e43065c485cdcf45022cd7122f1355d462","2f075948a7e6c5427d8421917cdd987cfea4737757d6f3b3118edf70a7abb820","2a1f47a5499ab778f7772c41d9e8e25b916cc036b47ad4135ba8370c445d7501","f13bd3931ffab245c82268d5388ec4e7a23a41a86394a369b97f89216cceb3ad","06054c91b82ccf7b99bb6b4fcb7c60afa97f93295e6829b75e5bf1efe9493e63"]
Anchored: 2026-10-08
Public log entry: search.sigstore.dev, log index 3138947147 · entry 108e9186e8c5677a2712…
Expected log hash: 8f66b765b7efcb11dcdcf57b81c46ed3317a5895f5b870638e23b76f1efbb2d5 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":"v1791425549743","kind":"published-quote","locale":"fr","page":"brand:concordia","quote":"ce logiciel fonctionne très bien","rating":5,"review_date":"2025-06-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.concordia.myconcordia","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 (1b26d1b85473…), 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.