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.

“Impossible de modifier plus d'un PDF sans abonnement.”

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 2525010456

Proof data

Record hash (SHA-256)

2a832260688ec4be6ec0226af4be4508c7f2ee4440e462b61a18fecda0c47151

Signature (Ed25519, base64)

wjDAFkYlqgRBTFSbQnclstEOkn/4bfOP/+sHaEpntVsW0d5M+o93eRrAqhyF1iJtaE6oDD28ZZNtD3fR1Bp0Ag==

Merkle root

c69b412346f0db8d88aed17dbaf2e4876a3743c1c4d16fb306ba56b5c0573123

Merkle path

["2a8483bb4746896a5986cf610a4412af2e9a7a2dc367b1f5b1ff7c48663eaca7","a9632196ca03b610e6bdd5c7ef5974aefac471bbbda20c043a9d333c72dc2fd4","555a673485e0a70516ce5ff1b020c3f812aba0212bda5f1b16e34c80fd7b15b5","62f6ec7adcfcce10deab00419b2b738587c11bfa9ae5ff6d1ce3de82b59fbd1a","198593f4c4173c395842819ee773f3967cde155946cfd5c3efbd86c6b33f5775","0a887f39d658862433cc09df0b03d336088338c07d83323847f323f67f00ef87","205b384c426d616a2059ecce026377c038bc6b91da5f649f5a7b1fd4467ac419","aab9edc9d2c091c52ad3b25e9e952244b02115730b803e46fdf94307cb1b4c82","8800b188da55f82429aa83802a7540215f3342b852844a0b7c72cdf7317c3a07","1f852d5ee9cee0d57a7c836c6643f88af1559348d2e30dbe75d3d612a59e8a32","d19145d4c3611b29441a175c5745d64aabf49ccfcbf6fea148b1e2a73371973b","721459d5ed2b625225b644c6314b3b4b68ccd1ec7d9cbfa0502a712e52e833b9","09997fd9b1ef8c57766815e6c9849e05f2447cb27e8d805273108da18c60273d","62927e8f71080777dd1935c21221e60b742dc0377a31e2f20a0a64cf6c3282e8","3da38b679e2392986aef224a332d14750fb3a22c4e75287765e8f68f575f24f3"]

Anchored

2026-08-20

Public log entry

search.sigstore.dev, log index 2525010456 · entry 108e9186e8c5677a4287…

Expected log hash

659be4fcc7663b2dc65a53351e16497fea44ed9ec8aef1f3c48c8e452b350dc6 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":"v1787194832011","kind":"published-quote","locale":"fr","page":"product:smallpdf/edit-pdf/fr","quote":"Impossible de modifier plus d'un PDF sans abonnement.","rating":1,"review_date":"2026-05-06","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 (c69b412346f0…), 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.