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.

“Cette application est excellente et utile.”
Google Play · 5/5 · 2026-03-20

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 2514654467

Proof data

Record hash (SHA-256): 4933900b7aaa765838509ffc72adf4c6737289b529521d4759ab7bac8c45561c
Signature (Ed25519, base64): EIDm2Fz+tZMnZ77EP1Zkl3+yvEX7Z1sHbTYOx5jPQsg1yhI5oi0eGOyasSqPOhW0nghbFV9KY6oIwOj68z5gDA==
Merkle root: 2030d4ef17fc68fad1320305cf569e85a00baea931fba0d3ebe628cf9c90c35f
Merkle path: ["4935358be46465a0315bd48679a1886dd5880916093e2a162572e8b3ec064be2","152af27e4c25b5543eccc535c746380d25a3cb0caf8cde0ad46955c5143e5bf5","196a76dba93783aba15a967ffeee2eccb41dcbcf5714f8fbadc29b52e5881609","cfdeb6ec8de1c594141b4110671562a60e8036acfc73f91802ec146fc8933afb","8408d2991b56b14fe7c74ec7b185ddaadd33d095dde1ce1f5ccd5cc5fc86c97b","2ed6e059e972bf7a63ff5a05b1f343091b57fcf39e22af82ba40b0529bdcd827","46500fc8d69e086be972c849779bcf4fb404fa9c43501b351cb0ba50e26b8e6d","8b45839e95edcbe60abe8b916c8c3fc5528672451e2343aa03b31b1d0a87411c","424e18b1a68f40b3eca4d8ef4921450e34e1d7c139a5b69c655fa13095d4377b","f2dc0614d8fa611cea83c4c25fa0c4c265bab38d604fe1c48697a0e0a5732c51","b07af7553732f83ab4bfae1c1fccf2313966d13f26e8f51082ab0863cf1df693","a26478f06864cdf21b242303a7bd9bb077254c92f4aea0d7946c5a28d12cecd9","3b94761186bdb870df8b4ec2f52e7092158883022257291c3f0981e4939e9a75","bac51ea5b704b29646e9427857e311e108c5e79191194f7fff260047321ecdd7","e362b663c2c1f5a93380a04a7aa41b42f4bafc7f870e85cf63803f76c744c486"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2514654467 · entry 108e9186e8c5677a9253…
Expected log hash: ddd8d6dfa3771a4106292f7bec674337dc9649465b28b118bb17bfc2b8ff0a67 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":"v1787132872903","kind":"published-quote","locale":"fr","page":"product:smallpdf/ai-question-generator/fr","quote":"Cette application est excellente et utile.","rating":5,"review_date":"2026-03-20","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.smallpdf.app.android","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 (2030d4ef17fc…), 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.