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.

“Merci, l'application est très utile”
Google Play · 5/5 · 2026-06-04

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 2542879916

Proof data

Record hash (SHA-256): 301508cafc28b6fe3173839b2eea1111da2ed56ea8f844f3ed5199de16b0c8d5
Signature (Ed25519, base64): AHsnC/0cvb095WzyAtHnTN0f+VwOOeP+4xbxCe0lIiJEjw1SUvOdcbn44GpIUjB+vCAlY7olbKVMTXjkhxaNCA==
Merkle root: 681242bb8cfa94d3b60cc06de1bbe3e5e124dc1675276b11df0aaabc9faee58c
Merkle path: ["30134a42f5c1829141326a7f8c2cf0eb07d3d031e3c9893759cfeadef82f3f5f","84a0ebc943181448fc942fc9fe46b59750ff4514aec158d2ae8ed52d76810568","ad6f89f49d493f1e8655c87ee57d6988efaff0f99aa7b2d753656087a54e519f","ee08b266bb742acae3a24727b459d0b29d15677aa8220a553f1c0d5005f02dda","fe208d334cd82276e8821ddae2e78503139c439a3eae3fd9d6aaef4ad8b6cbfd","47b005e1c0699a34fe6fd978112f63b195793ae4c803c551d7fdb587dcc78bf1","3bc9186c9c247b84eb3be5c11326800e471515b345cc2624314eaf16f4556ee7","ae99afab77d4c31a5f739f4b5233e9d84d57a76603c2b709ae0c91e8b6cfe24e","db1d65afa0d6b3353a1eed094d5d2b9ca4329ff71cff419baf5ff2547f8d7774","b87b0153f6555f078c5f25cfd8c6ab066976612f9688e866ab9b6d9ab5645a0b","e72df5d6ce0ee9f9e70644de42cae04d1acf5a684f3ee169734b6b533ceaf183","5513df3b5198644a51f19c6a8b75cf4305f66095e21c82541834f6b850e694a1","153ad351563f9e4de319dc32f3ff7774e0dfad0704c150aeeef6359dc7f03444","018848b1e64bb342ebfcf3461012f852a9938ad88239203d89ee764353ea1567","78eca2193b177c5ad7546ff5d365dd6cb79efa278dddff5151740888f319c0e5"]
Anchored: 2026-08-21
Public log entry: search.sigstore.dev, log index 2542879916 · entry 108e9186e8c5677a2329…
Expected log hash: 8337812f20bf1207a3c96eed87ab975d7e92ac1421dcded24507b32e456b788f 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":"v1787282728402","kind":"published-quote","locale":"fr","page":"product:smallpdf/smallpdf-mobile-app/fr","quote":"Merci, l'application est très utile","rating":5,"review_date":"2026-06-04","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 (681242bb8cfa…), 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.