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.

“Application PDF très utile.”
Google Play · 5/5 · 2024-10-04

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): 4baf329006eeb06cc1c2ec07d45c909d37fd232f653654e0416586ebaca946c5
Signature (Ed25519, base64): QohRVRcRnSDEMThcXN+zfUqfUH40r46WPWzVSVjqjvgRZYfWOakFs0rXzqzBmtWDnSNJjp0X3StFUxfvbq8oCg==
Merkle root: 2030d4ef17fc68fad1320305cf569e85a00baea931fba0d3ebe628cf9c90c35f
Merkle path: ["4bb3ce5d6d76482d82b14ed8c3ad67954cca848944fa4e44b9b5fa4aa1e2cc32","0f1fe9c72d0f97e036eb80f1dd0cb3d8b24c8b429940da7edd64845ab20fedea","0d7269e414ffaeed768a71eed312dc29749db75583c1f5b58d0764d4784fb4dc","8fe7ed7a52c2a37f3623b92e336f163713946cf0bda2ef0c538ff19261aa3b67","f6762df0951ea5221089cf8ddbc10ae121df340cca942972c9fb65c4f7c6c701","e443ed04556a459c0d4ced4decc4b9ad5c7a0d49fdd8308e446b5e4ab37ef87b","562200ab8d2661e3c232c085ed0bb51a79d9ea22de4ed4085a3b98de09568b11","a4afec1f2f18f80e8f7ec0f52ed7870b0e474e1098ce6c64642b90d45fb10169","bb12528b5755dd4af3f2710fcbdd5b2a03e0bd092518cf9a6a48fff53b71d574","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":"Application PDF très utile.","rating":5,"review_date":"2024-10-04","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.