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.

“A mail app that works”
Google Play · 5/5 · 2026-07-27

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 2544236959

Proof data

Record hash (SHA-256): 0ff3a0aa7e5f8249aea1aeba8065698d069696237d5f125ef10d0002c572e4ae
Signature (Ed25519, base64): amq4a61vdNRVwHXaufdiKCnXZ1zPnhUyd4nlqogOcHozUBM8XoUFDyxbLtoBVIajHfIZBfWBg4O8eojEv5v3Dg==
Merkle root: cc942239c46f13b1af6cdba0960a24a6cb62e7a7a462aae1e8126c0182dbffc3
Merkle path: ["0fec3e9815629b2eabc2082ca9948f035a9c4211023d0827042bef48b41f225f","241f8b8a6efd943fac4c91294389bdd3aef93e850fdda5588b048f05d01eafaa","a9618440b1df5166b8edb9373175b9eb62813733f48fba9df0c02696ec755ca6","0dca9d4fde70d1d630e87d1dadc22f33975ef2c105037e4688b8044477507642","c35b0b021a148d4b63b93ca816e9bedc1f46a50d1298a9864a6b3253f2353a77","44239522ade5e1ad2251e92a36f7bfb522ef622d08fa21f252f4c89fa463ccc9","6600a9e800bb2081cf19ffe4e9fe8f05753ae88fd89045ac670116196c6d2a21","b2078271afc4965196e2ca7527504f1c6ddba412c6b37f58cd20c8db6db9010f","9669e3e272470fa23be829532d4dde26e3850f22d259a87b5569fef1f69a3bd2","64f5367554369602bdafe78c6137264d420bc038bd7b301ee269e77c337e072e","8e28ecae949842e6968d3e8cc7cfa46ecc015aaac02af57d21ca545064d469b6","ce148a613f994a846805895897725215688955ae601ca9f9f35f9ade9a27066c","29959b29034b6ed072468b5b39d5461625f307638700b9d566e817e6eed47120","f022ca67d84103ce2cdb199754ab60e49f2f04e17a257779049ad5591df59737","f25e568e6bd90a5619f6d6d975016290629a8afed06b80200730e4e12fb2d1bc"]
Anchored: 2026-08-21
Public log entry: search.sigstore.dev, log index 2544236959 · entry 108e9186e8c5677a0341…
Expected log hash: c82e13ba2a716d66def44df55ff50c2e9db35da204570a7fd5650a8bc2702db2 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":"v1787290890795","kind":"published-quote","locale":"en","page":"product:infomaniak/mail-service/en","quote":"A mail app that works","rating":5,"review_date":"2026-07-27","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.infomaniak.mail","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 (cc942239c46f…), 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.