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.

“Extrêmement utile”
Google Play · 5/5 · 2026-02-24

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 2683258276

Proof data

Record hash (SHA-256): 56351fc4a7d2309c30720b836f55904467f5ad870b5b41717c8a4af3b436f63e
Signature (Ed25519, base64): qLX673juPUmGI9Xb2EkEkZgH8E2OT8Mgh3THfCEBtJcWjlxx4sZkpQSR2LzmNGZKE0/mf2QzQ/njCiu1mAgmAw==
Merkle root: 1b4480a4fbb367e76fd34ca26880b5c46171f974cf3a94f9b036b42e01723c56
Merkle path: ["562eb4ed3ec01009a7a618bb4fdc68b8d1f92b593fd8641dbc91c9ff0425cbb3","e288267c9dd1b974c18f283805cd79ccfa272f50f611b5561ba612605da545e4","781237db2308b5650529c6a5bc7698ec6023b2c9e1844469ab426eebb08fa0e9","52bcbbbb67c330c6a658ccbf40e949382a370845bc0531f0dd4a3f107badc9c9","ab2865a5fc6247fec95f5230f874a4eeac3023fc53a25374a6d2835b1e06082d","40104b51799f77582f63077eda8a5e92961ca8e0c522959381914a39857ea403","71465129376ab65b16a96658beeaebb4c75bd853b71ac4473102b739d428c060","76ea48511b393c7351e37c0da4e56398922fe73e04cc6c84b37f1152becf2f18","61ee9f52ae2993a951b19173ca0490fdabea0f3a04e0503bc4b10b21270e2379","775f3c9c9192ce481836880552a025d7b65694f5103a069da0182beacf667f95","72b809b4450f7ee25f9272c7f1d904f1263dfa2becd8daeb5eb10f703abaf27e","aebe50ad365d1754f3b49dc2f44cedad49125ebcf0bd79c5bf50d2f7b38af528","05a90d241075e7f4c50bbe0b0ba3995ced328afb6f26ba9b8d7006707d1d2290","e7218144e850bd19a6bceecc50f33cdd16123e2542b211b07ffe285b3602d2d5","26c4d515b1da79ddf02519980ecbc6a7fec0326ec612e5f075735f461991082a"]
Anchored: 2026-09-02
Public log entry: search.sigstore.dev, log index 2683258276 · entry 108e9186e8c5677a44df…
Expected log hash: eeb02f3fc88cc5ba2c672023b294d6863b311c6353fa3c9c8dfe9c0b1e584208 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":"v1788322016973","kind":"published-quote","locale":"fr","page":"theme:acrobat/fit/fr","quote":"Extrêmement utile","rating":5,"review_date":"2026-02-24","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","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 (1b4480a4fbb3…), 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.