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.

“n'utilise pas l'API Calendrier d'Android”
Google Play · 1/5 · 2026-08-10

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 2525430207

Proof data

Record hash (SHA-256): 20b27cf2acd0e56864eae8476ef9350a1a7e3bc669f3701dd4d52b25758cadb6
Signature (Ed25519, base64): prJdcInMaeUSOSZGyG6iFDyr6a0gU0nGurmI6EzrGr31/90DJS/sXC2vZ4YmWhPuxWmNPZuqyBRhIsahCukrCw==
Merkle root: 689da4f5bb049dceb797a1ebd18ec1f343afdc6a2eec17587eed167cc7c21a02
Merkle path: ["20b40ccd0962ec02944a15dfe54f48ebbec7c0506d14401c6fd2610052422de0","f5bf1bd378ef1944263cbb658063a9931238168b33faa4e1140907d5bae34cc0","a3413f9e11a8a1e5b261aa1ad0a0e3fe0130cef6d063e1421af09db2fd554eb9","b76580027b19b009c18596fa13249720dc0a2be04fa61542c50191fb71a0af73","9180a0f946cbf622d3e1180ec144da8dda3c96f3aa13ab9021cd626f4a2d2b96","a5dc4f17cd60ea22f6699ee0644e788d86c62c2fe1388f45600b5735f92b04d4","fa762d26504309cd508cfaae21e51f9da24baab8f183f59e18e6b156f6c512b3","4f269b7a77abc98dce516451b860e7946c92cc94368d00d6f51d42ed518866b1","4a8047596200b57dda67491b875f11b6d72baae934f3bcfeda649940495964ee","46b79fa837394100960ae560656d9c2050b219cb55352be77365eed277c9ed67","1a22b8d91859f13962a6ec413008adad422c33c627292c78ffa8dfe94012cdf0","ed2e7f605df54f0d8a76b277482b2a940a3e8de4a23e2ef3a3cc15661667d029","b29f01d1d4fd5e719afb8d2cac2b7867993dc07c08772adb1bbe832e05e6603a","b93077b5d0d90464bafb01f0d5e12407aea90af234685d3284ce5c610fc51b1e","2492d624e607c70378839deb70fe4bc4c618faa9a11f2be7d0e42b467b07d755"]
Anchored: 2026-08-20
Public log entry: search.sigstore.dev, log index 2525430207 · entry 108e9186e8c5677abb21…
Expected log hash: 68e6afcd6c232c11ffffa818a4cc0c5faf1a86dd24e2ab2a7811fa1f4f43bec8 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":"v1787196781193","kind":"published-quote","locale":"fr","page":"product:proton/proton-calendar/fr","quote":"n'utilise pas l'API Calendrier d'Android","rating":1,"review_date":"2026-08-10","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=me.proton.android.calendar","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 (689da4f5bb04…), 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.