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.

“uploading files and applying signatures is smooth”

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)

2d7b31faaf6eb7cd6adf60c8bbefafa958960d81ad61714612c0867fd1a2a8ca

Signature (Ed25519, base64)

pF1lbCQtAUcnzAByuXX4v0BNz0b63SGHVTqhZrh5yfEo5RCfC/LRQO/8z4keAU2Wmt+SrmBiiDx+3MJo+gu7Ag==

Merkle root

2f068f3de56bebe7a575ba4a979c9244445d2350140e36238e088fa40fbfdd88

Merkle path

["2d7c0639a7cfb123d26d0d4757ec5801735d114c244c927c188ef5c2bc939c4e","cda59519470fe33a717d008496144d317c306d222051aa379b6bd511c181600c","db4f7c3caa98ad662df9a388bc2d9591f38251fc8b48ca74993aee6833f27b30","be8c9c282efe05a57e6a7f86ad4f13fe225985554a13ca07ee0dc694016b5a9c","8beec6cd45b2f51756a2edcc135b5e68ab0dba1dac0684b66e5c26018bdaf1d1","ce845dc85fd479c9c80f15906b8f93acab139a8440334f03f453282abd15f925","5147a47f82e62b97d29e0efb4eac8ca1727b3f2de8ae6f4512c9e35f532d14ca","309c62824a2589390e983f5558bce0f25ef1eb2d9d2be9d2accf13f28f325e6d","7360d124983e0afeaf8cf472d869cf13acc45a89390964e7c16465f1c1557523","c7032139c032c56d333bd40fdcff95a2415d2846e099a6832b745557f6314753","cc62a94161c622e4b4a56a47cfb8b71798f97915b3b8d06004f4b5a149ef4d5b","ba64597144ad55469e4304807853557493bdf960abe724dca5437e442c223165","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":"en","page":"brand:signnow","quote":"uploading files and applying signatures is smooth","rating":5,"review_date":"2026-08-31","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.