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.

“I cannot even go in the app if I need to pay”

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 2514602687

Proof data

Record hash (SHA-256)

ffba29ee5fd561d72e2ac4c637c4b68cb2febd31f60c055889f4762bf77f06f7

Signature (Ed25519, base64)

kDlNI/PAKKX4lSeeHTbpaRnKG4mriEPE9ccPXvURwd4UW1rTl4dfS/dxdlWsWF38a6lOm5KeaqB/yhOewUsaDg==

Merkle root

749703591848535a8600340214debbd99b61273e3bed402bec28b292f90ce9b6

Merkle path

["ffba756aeb276d508d4ac6e7762a3a7e90f862fd053703e8cec27ad4fc8f31fe","274cd530cfc54cc7f5b82b1433c9c67b4cd82c3615969dc83dcf9efa11b09453","b98eedd32d18b51cd5b0ae3a6daeefc9739a1e1bfd3d8d2e3ceab344ef94c668","f9b6d5bb2fccdf69f349c5ce3a19626056ecae8de5aaef3e6b66e7df4a88dee5","3cd8b6482be1954895bed8a39cc24287958e7d5694d430f2488db4daf8ed874a","0d540570df1b5645ce900cd1142096ee3b28fe18a7732b5b3b04c0e18207bcdc","c3e0c23eb85d4a8de0a8f2b37fc2a7e2924ec302e710363a9efa922eefaf1f19","a0d11ea67894ef40bdd75510a15cf68fcb95ae356185cd2d525a6cf7afb28f3c","c9cabe9f628531e80cd43e898915f14dda6506e6a92060cde53abc5af672055d","eab016dfa7b6a9ee374296f384c3b1d0b28a3ad665ee07caaa1713b144cbb786","28ed7302481a09a51b52609aa599cb1db4784049fa122005860d9c3f9a7188bd","3a5f53ea444f142a988f6ae277939cb6eb91c4ff0e850e312adbb60ca7c4d1fa"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2514602687 · entry 108e9186e8c5677ac525…

Expected log hash

e53e7f935eb508100ef1046b60c784e0bda15dd54afae176c275a97cf1f64052 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":"v1787131269839","kind":"published-quote","locale":"de","page":"brand:drawboard","quote":"I cannot even go in the app if I need to pay","rating":1,"review_date":"2026-07-28","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.drawboard.pdf","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 (749703591848…), 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.