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.

“It is a very good app, it helps me do many things.”

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 2514851395

Proof data

Record hash (SHA-256)

6fd8e598f101444df48dd0fdaad0e2fb4da136cc497a025db6b2e05542aad365

Signature (Ed25519, base64)

ounjzB1gDE8zOCq9Kz6klU6rh7OWJHiF+e/AuemdmLrJqZJ1YQFVc14IR/A5SL2GPLRxJJzRvuySkYglFU2DDA==

Merkle root

b6da35820db152d3d2c0cee337545e3489f0422a146fcc8c60737b1d3a3ef55c

Merkle path

["6fdae9c0820d8cea3b6f82de45e6cae56f8a0a86cdbce75b542176ee29b10f0f","4719b082e1b3bd60c0c9bd77eadca0c7edcb41efab65a8973c98fdb15564d72f","825d9a13dc342595bc08ed719053585fa968a948f167c2d31d234ffa2233600a","96f5086cc4c795e66e10240c6f32b70d28ebe8645eda2aa21f8c7868f889b73d","79c1963094b74d65b75f541494b40842b4e96e0cdfbb1eea1a36889b5a431f25","6d39e68b1e5dda0643a2553c53edc7c1d69a85b6378fc3f3d52e3fdd079f7109","2f022c6ff56ae7eff833e0cbbfabdc980ba9cac9fb521a7aa84bdc1441950383","b8072e2e3f45f607c1a72a8edb2210ef0def2801c94221a1e04b94a0f61d4e80","c750b544bf0b93a7660e1296fc1630dcb1d938757695a1eab45f7255e19fe718","deaa0a1fe57e9b8932e9295def1bfaabac6e1d81f62e809cd575c408aec57fc0","7281f279cc9a8452670fa9a12ec35fdae2e72c841be32857fd0db89930ca121f","04087565ef2bc2296fbc1a825b280fdd722bb654bc60f0b5bce5b348a7793e47","7683d5d7c88ecec7a3b1a5734816ef1b47ef9cb2b169a45f71d75a399897983a","a87bd939a3ad0796a8d580dacb2c37af7f713a77a0e4e7ca6c95f21a1e1d62cf","c54d917d90cf6041da53ed8de4347323c6a7de99e787dde7349330851a57a3d5"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2514851395 · entry 108e9186e8c5677a4f62…

Expected log hash

687a04ce8b1c63a953fd353f279012a3ef08c4ad12d885582b1b6ee85d05b900 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":"v1787134378129","kind":"published-quote","locale":"en","page":"theme:canva/delivery/en","quote":"It is a very good app, it helps me do many things.","rating":5,"review_date":"2026-08-09","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.canva.editor","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 (b6da35820db1…), 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.