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.

“The operation is also simple and intuitive.”

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 3272274666

Proof data

Record hash (SHA-256)

1d1ea3d6870e43ea8492bf17a14787b50aece4c8958dea17abf74779de8c85a1

Signature (Ed25519, base64)

MGt7o3cqXUA4rWQKFjHDsg9UcAw3oRvVQWrWMndUIqXjGB0UwbPW0J/H4oWTfpywRM6t6q40b/xweaZm5ATlCA==

Merkle root

a4d47c2a34f6eeba31e2744fb1551fe9a0e34820dfc152f1ad93a68b24759c3a

Merkle path

["1d333a1b7a59cb02460dc26cb04735f3477d40e739bfffe885f9b6e6ee8be041","5f7620424cf451807deae6482a3809d8826e4ff80172081cb8f3af693cba5c7a","181d0e5d5471fcb47ae0baa55c1c607c324928a715c4994209953ac666e66115","b8de0b11c3223898fa834d422c40df7007ebc71ec5b8e85a938ec75f70c276b0","3ce35c3f87c992847e45edc57edd33cf8096527036c69c8c158b3e4faef0671a","56b681ead8acf2c6d189e559d7be321bac87b7f1a959ae641a3bde5eeaaadd32","7d9943fbea5e80fde52ed3f52c1a7beaf75dcf53fdcc9c41a9a67f6b71cf3691","d13e78a839e91d36b374c641f2fcc66e130df587c0d0ecda88592a5e7de892ed","e43d066c74a78e91e53c6ace7e967d67c74d38cb45ae078e192a880320bfe05e","a143dd132ad90f53563cab66379bdcdbb78c0bde7015b9c46d638650d0ce3a3b","5d71dfb799af9616515551742ebf194eca9971ad386cee090b62aeff22bd1d8c","718239fed8057dcd9c8669511115793713c3c27b1e9657de27f870abdd5c7bee","0d7c4faad4992f205f2c1ebb2b0e4b1b7e9d070f1f77d3f8d64b80626c324f46","35108299fffbb5c1a0d86f074b5805457d73da5ec7c848a19bc9a928f6a42a99"]

Anchored

2026-10-16

Public log entry

search.sigstore.dev, log index 3272274666 · entry 108e9186e8c5677a2724…

Expected log hash

d56e71820b4c8c62b755e9f6e3d2b624566d12db6dd1606e99ef55749400c387 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":"v1792036997995","kind":"published-quote","locale":"en","page":"brand:tuta","quote":"The operation is also simple and intuitive.","rating":5,"review_date":"2026-08-31","source":"Apple App Store","source_url":"https://apps.apple.com/de/app/id922429609?see-all=reviews","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 (a4d47c2a34f6…), 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.