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 2612584084

Proof data

Record hash (SHA-256)

38640fa09b0db250927097729e0a3a1bb9631435994280bb85f266d9e58dbe47

Signature (Ed25519, base64)

ioUm6tqF2MJo7sZoAEcB7GuJsiK/i2WKGgNrYL+WHVAO7cfznH9b0e1VZNkkMbtZ4hzV5rVqTs+SmhfZQ5/ICA==

Merkle root

11760913b24394c3efea903b5693403de67f30c73517589265e62147ce6d7db9

Merkle path

["385f4ed849a9e3eb9568c9c4b8a50125e2c471ec0ec9f4031aa8bfd996ab3fc6","749e1deba0d16df07aaed76121d723e40715693e17a57580ef5e7d38ce3bbd6f","1979bb90b22ad3ef0a9766c2d057938c8b09689e731bcd363b9096ab09b2cb10","fca3e71c435a3b3c17dbe912105d0f9357cb354ea2442c4b2604611e40d40405","9056eec9a83a89e0dc310876e04f0d9eb1316957e69de180209953c6d108bb7a","9e6de3b23ac1e9950ddd8457700a4cea500221900776db0c771c173f705cd4e5","6f3dc9fe551deffa44be4411018684451788d5fb5c50c085672fadf0fafaeb2f","714753ba4ea7692b3d0baabe956d421064e61ba3eece57e756138f57b9b33cf8","7d72578a5fe713568a6c51f483efc66ea1f23a2e6f2f8dffda94e40c718e1e10","c6d4cba2a9744627ba34ee467e50f9187f40deb951d8cfeb3f01013b4462f11a","a38f767b8c7ba74d21a340c6c9ebf8359c590d8602ba85158942639e32a10c6f","aa22cf1fdc03346a2c123053ddb0b135bf2b4bd5ba09ada92d8cf4c66395f55c","454853845749e4e19e9a4a1e7f5d435e84359a89724eac3decff058059c6dff2","4d94d9a9168f14be08d81b3238e6d7999acaf99b1233bada5f6c2802401f1b45","8cba8822ab29049afd67fa646ac9379523fc6be8932688ce4f3067f563511db4"]

Anchored

2026-08-27

Public log entry

search.sigstore.dev, log index 2612584084 · entry 108e9186e8c5677ac6bf…

Expected log hash

0a57a1a3ef828bcabfde2971260e46ab649b0f8c2c96e231d49bb83e51a8ab3d 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":"v1787801559681","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 (11760913b243…), 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.