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.

“105€ pour signature”

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 2893887498

Proof data

Record hash (SHA-256)

38f8ba354ae773b0dfbd1ce4b8174ad4f6a761fd5fc961eaed742f4829a196ac

Signature (Ed25519, base64)

igrhEYhixa8gbGai9hyBhodnrnywb6Rfm6vtHl1Y3fTwaWCTWDSD8MxWsh4YIdbhGHsUpiE5TU/J3QIWD6AQBw==

Merkle root

2f068f3de56bebe7a575ba4a979c9244445d2350140e36238e088fa40fbfdd88

Merkle path

["38f903638300f42ca7d34dc1a73641d1c0c13c01265374491f27992048f15588","a205fd3f2a89fa6e013d5a61ec5864c9eb60a4c89934794adebabd7033c16414","dbef027aa1c7d748534970e1155a39afe8ff8f4bafcd608a5ec73b8dae883b50","c0abb9e573574be02118092b84190711082c508764c3d86db75338e8967d9723","2d39f95666ecf65bc749cfb80020e8669cb2ef8e92f4216dd00599aae34ffb41","af3572a50afe7bb4d3712939a4c232705f90861e24d36214e53588dc398d4be7","070326209cee12a342b0156d45c72a4da40d594cca5f061644bdb28b6ff15727","2a7e5a5eb4037fe700db55ab05e117d56b78b1d9b83d488ceca2501bb0507b0e","d6062516f09eaa2bc985b69adae53c2a4922ab018ac49fd0870ca0aa251784d8","0102e9d67652257fe7827ba15907621003e566d8b6c7c81f0ec6b779d2022e7d","160c0427cdb188ce7f937f06435fa5996b6a19b4bdc7052b0b1e205016d7e024","860272714a28696648d99767aad91d735a5f60322d9fa60ef0218fd7ac5b02f8","67b7564c01b814702c17628742fb6a8cbfa0e8a213c06511e31c90cf9f3e3578","03c5fc675733b417d9af5e071de3aba38ae7f09fa5781cbd0133ff9d4e234e36","98191c82333f4385e47f318835e01d44ca8835262c6d0df40edfd5f6a4dc5c19"]

Anchored

2026-09-20

Public log entry

search.sigstore.dev, log index 2893887498 · entry 108e9186e8c5677af79f…

Expected log hash

90099e0300c6e23b62e79318296ebab91bff130379d248ada57f044f77e72ccd 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":"v1789796056710","kind":"published-quote","locale":"fr","page":"brand:signnow","quote":"105€ pour signature","rating":1,"review_date":"2026-04-13","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.signnow.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 (2f068f3de56b…), 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.