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.

“l’impression des photos est de grande qualité”

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 2685518693

Proof data

Record hash (SHA-256)

3162b781f8f779c55c580d09dfc634d2a624cc4d6ea632060b5abce5631fb753

Signature (Ed25519, base64)

60FM+pizQx85U+V+eJTz4IaSM7dI9rIL7IpjumSZLhft1Zp9Qq1iKRSySb/IGD4leZeOglgbR++gnlxIDUToCw==

Merkle root

3750a5fdf1ed10aa252575b51301fecdfc7c400fa1cc1f2ff8335245da43610b

Merkle path

["31635a36fc8ab918a1e04b7f8837b7fad86f1b857cc085befa0411d8da6e61b0","389f8ab4a55a0468ced298c74cf3f88d2cec39adfb5b8a6cd9af4f9a0bbaf874","d71ab8e37d64a8042651824a08a00b54bbeb310e5a10e8341774deb92aba4a72","8bed777cbd606c2c089915d7b3296973311f236c3bbd9ef2f8501e02922d90c9","6cfe2c13f073505a0dcc49e4261340e811c96b0a571d3322e406f9d53b876361","b91b7b37751f47451377825f2a99258183a29c36283e1852bc2d64ff14f40582","606dc7a80faa097350d56f660365ec03810e3de4f7c673373a6bdb519d02086c","d177cd839d2a5b22058e35a0c8f1a1b4f6d272e6915ee30332aacb2b919ec841","f67bd35693b8b4fefe0799e92ff46eb0318099dd855b570ae67ef796d33af7fa","50970f027a55cf0b107dfd2ab44aa7a94feca42680e58568aa8667091f4d82cb","8592a4858e12b61f173f3b46d42a2e32b150dd61346b5d4de74005e2b02efa09","f3e91c539a5b823bd3dd810a09f3585cb5af14f485a442f648125acd7baac356","1dfe5acd016272fe02a085bf50e6510ed355c73b71aeb336f05812a4d28389a8","d3f60913f0f2261af2a1efa087a29b863f258046202db992bc2cb4f53d0bce0b","587eed16c1494c5b5ed63db0c99eac20f0d71c9f7de0d416e769324bf14ca737"]

Anchored

2026-09-02

Public log entry

search.sigstore.dev, log index 2685518693 · entry 108e9186e8c5677a840d…

Expected log hash

14b4c1422d781f8c06152e5b2b6bdb741e926e97bae5efd73712ab8c7b50b252 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":"v1788352576042","kind":"published-quote","locale":"fr","page":"brand:myposter","quote":"l’impression des photos est de grande qualité","rating":5,"review_date":"2026-08-27","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.myposter.myposterapp","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 (3750a5fdf1ed…), 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.