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.

“Où est l'option en portugais ?”

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 2515095234

Proof data

Record hash (SHA-256)

3c3b8cb0b68088e1ab4861ebf68b86c61fa20f1179231ab9fb409f1932119d1d

Signature (Ed25519, base64)

l+aGVAg6KrcyzOmIKT2t+W4iEwWGvGJIX8znhJa02qG5fZr6uD6Kje7d5zBfRNtOmMCiSfEZ+Vmmp0Kf2nPcDw==

Merkle root

d9909e7ff193b610d96d9930fa8111baf2fdaa08b732478b03ded2b9e1e52914

Merkle path

["3c3b9ce6a35a796d8b27ef5cc62efebffb35fae2aaf82a121259b0ac251ce9df","8bb7fdef0473ec55fdc78dfedf019d409f1fa107ae17f59ab11e3bc27c77b2bf","90559ae2ded2ed9ff8d1eb501b0f051378042943ab3a43cbe0b12f4e2cd5b9fe","15ec41284feb3e8d5ab2e66ce6e78a120669d2b17e4b3c97b9ea954151aa4bec","bce93a3be25c4a30107a29894a49964bae391ed95c06c196e4a5efd41a4ac293","5e43170428c2ebf94a9d94cd8b0b69e8d71dedc4960c66ff44f95c76ff07171f","e4929bdbd74a7d063ca21e7e6769389a913b7b04e074d4d83f969b9f345d8cd0","2b1704e5e8fb4e46696f26ba62c9a9141ac7cd9c9270b65b860dfe259dd31389","36d2da07a14759343295cb191cf67a6a3655673a25a3792e7b0a171d3360db78","6874a99f7872f453bc955bb98950719ae897eca70b4ca3c96c09f0943955ade5","6e555ce5a261dc82fb244e8995377190b816ff7790d71243f53a26534268d83e","92f0effc8471e5373ec66ee66af9c30ffd1c50d6cd7d1e180e5da63a72cdb9c3","0583a3657a7c7707250b64b3439ee76e599e48a7fca8004ea89afe87f756b292","c8967a31c6292f2cfc7ed9c390f7083b1880ea886157cf89b881616d7130d93d","2aa33c224957c89d7d414cc43142ae7c4368efde4f1a1b6051ee910ab17bf997"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2515095234 · entry 108e9186e8c5677a299c…

Expected log hash

6f0abb2e15f57da153d99eb9fe756fd2540bcac51fcddbf7ac60c4be3cfb5f7f 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":"v1787136684512","kind":"published-quote","locale":"fr","page":"theme:smallpdf/communication/fr","quote":"Où est l'option en portugais ?","rating":1,"review_date":"2025-09-17","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.smallpdf.app.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 (d9909e7ff193…), 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.