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.

“Une excellente alternative à Google et consorts.”

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 2647547434

Proof data

Record hash (SHA-256)

09c801d2cab69abe16577706918e5b1e4c7946b793baf5c169fe64a8ac20116a

Signature (Ed25519, base64)

dIuVNK8KSMYCvs8tbTilOhwWVO6bnXHnKUq4rdTojEbSwzw48p3UCgwI6L0Wty6IpMvcoHH5tOrNBIbkRYfYAQ==

Merkle root

e4013647f339499bd419bb9f69745e1d5e6273d32dd17f94b6c35c2fc080d1e8

Merkle path

["09c2669c0a58a797876b017d1f88c495a492862533a55e9a624425e387b78d65","9b9b62b43019aeb243832f0fe98b0a886df8f3ceed289b80b85aacc5ed20aa79","ca066fc2fdfb4efe82768c744d2a3c7a7d2c5d3e51d99925f9a3f75118dbd3a1","bea44343acc1260cca16441588435645c378516a8e3113407fcb5508ea334000","7cd1211d5a06f831c4b502e6183aff2cfe2c76781fbb2c8c0319e31a4517d555","4d54fa26a72aec9e618cf5605e4b6a915897a01e2b3efe4cf1dfe66b45e1dc5e","ccd356172659ed7b6956919eedbb90a9c134e020df8ed794742bfea7c59aa966","f95b60ae7d0ab5ca3175462e797d6683b6ce5365503831cce6a00e9803e45374","e78a23ed7a9f297d078123facc0486f1d843c7ff204f3d19b74fcfb4eca29696","24324a3ccfbe762f28d8875fd58229e60c6bad03c999024264c96449dd9bd280","9797ac4081b0914d8b66ad52e291ad8897c1f708022347193e3c8024db076258","84157a9cf885c89da85a3c686dcc74e8c468265987b0fbc6d0c7bdc1cc8053fd","df8342363186f2e3b45c88fa26a77bbc6852f833f9b39f10d9c7965a0af52872","3b1a28d2ad07744c06a00c9b4786a6cdb14dfb04fc76bcc1cbaf73cffed41efd","d68efe45fdecc3c76847a618a62019c7deb410aca5cffe58288bdc27d0bcb771"]

Anchored

2026-08-30

Public log entry

search.sigstore.dev, log index 2647547434 · entry 108e9186e8c5677ae1bc…

Expected log hash

fd8e30fab5cac12236b44671823a2259ebb0774adc4d1a33fd6a7c90ea280d43 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":"v1788063921301","kind":"published-quote","locale":"fr","page":"product:proton/proton-mail/fr","quote":"Une excellente alternative à Google et consorts.","rating":5,"review_date":"2026-08-11","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 (e4013647f339…), 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.