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.

“documents can only save and download as copy, no other options.”
Google Play · 1/5 · 2026-08-11

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 2670958253

Proof data

Record hash (SHA-256): 1689467242f2606f5507cb26c2d255d73476ff4b03922e48a7db5ec25a707474
Signature (Ed25519, base64): dmom78jxZsZ8g5eiJBS3tGgfkwIvxM810br9ZwyDIO3xeZiK3oTYR6RIj9nm0gaujPQ3DKWTbV5Ndreb1umeAA==
Merkle root: 500353287506499921f04989c42df7854b05ea5291ea3ed0bcad01dece9553f4
Merkle path: ["1685931b952a3e4796317e58ecb34f8780cd1176a9bcaeb37674a07835dabcb2","79733ca2d870ed26e84609376575e4f716ca25c0be4876dc52bb3c6d7cbf994e","71a0e80dceee4c3337cef4a2e0442fb748659911728030c37c130de9689c19b0","b10d96b0334ef0e8e05f5ac8bb1d9e8c7578a376fd70b47de62e9d1140c8e4f6","999f6f2fd64ed19b07c9448f333220a5fc7ecf055ae370fe8cad13c7380f0a05","0abad6206e8410e3c8f3d9c3f9f537ae5f827d35e9eb5f22f26f8ff12e68718c","6df95f31844d453009a22c267fd0f9f52a1261dfb0110ade9bde2c8391ad7167","40a43bd906005cbe9f369826a6f12528c2b83a1e426ff7532e2c74d0ada40294","5ce834d250f91ab0ac42a588c6d773ea25aac151007ed42f403e4432e37cbb2f","8e0a0bdf573b65e0ae61e071aaaa7f0a8fb27591d11005996ada9cbdf09ad356","9e704ffec45067f5b890650fe479cf6dbc2695c6d52a73f5aaa79a29ab228240","507a4740399214a8865148608b59cbc21ed11086bde01d766a9eeb71f20657c2","dc1f75302e8eb5764b35af10620cfb5649598af9700b61a410e6cfa792463a9b","f65c3fc7992a9c662c5731d831f2a2aaf68c1dd6f8c35fabb0fdbac80b751075","f2bbfde0a1628a8e76ff492539bb8f38a83951b89fafe86bcaa38b54c297d493"]
Anchored: 2026-09-01
Public log entry: search.sigstore.dev, log index 2670958253 · entry 108e9186e8c5677aefc3…
Expected log hash: 40c8dd4ebcafc6bc578b6d879a513ea89a67c5dde4fabf96a5f0fa8cf3f43861 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":"v1788231472951","kind":"published-quote","locale":"en","page":"theme:acrobat/quality/en","quote":"documents can only save and download as copy, no other options.","rating":1,"review_date":"2026-08-11","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (500353287506…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
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.