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.

“App malfunction in the process of editing PDF.”
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 2611910343

Proof data

Record hash (SHA-256): 150b3e8de14493a6eb8873c23474b99f53d45e89fd4bd8221513bd956f20cedd
Signature (Ed25519, base64): 05kPM+GTurJ8ZPZHVQkFQvbvo+EsjQFwCRNueL67LGLcJ96am9p1q4M5fk1xSvcol6UylRWY8U3sCQyubSkhDg==
Merkle root: 78886eed79c5c55077432ce3df8d075efabb6513370ceff84d7b706b9eae04c7
Merkle path: ["150ae0171beda70c6223dc5dfc165e98b8072d6ed05cb853f759c525f76c0205","285bf7a118f155facefd030f7cb0b685fecec78c20a7ed8cc947403dab7979c7","32cebf14d9e75d9c9dd43680b8be147d2a9b1f03aa00a331f038ee7132abdd8c","443a56292bd7ef9545f9f211fabe1356700ebb058a1aaa8dd33e393dccb9b268","8de8bf5c0d68e1df08701d9fa39acb2bc80376abcf6c1a1f374dd8f8a0b65143","baa726b18b234b3f7f828ae3e57df701f4891cb74f23bfa1256d3ea226f9deea","87c987ea154047b8dbf2d83079e1946a12c9b8edfa6ff7972ca33a46fcf744a8","89204c548e842a57678ce367aa7dc5e0eb53fb9fcbc4e3aa9286c5ea5a1cf4b0","e645d538b860700e37e70c354d6c3c8bd96bbe921c0cc957a9d3d747e69ad580","0f37915563c3376d50498b3172e18b7b229c19f45bc9ffc5e4d15b5fd4f03fa1","adcd19f28dadd29ae50f52931c1c6e2de9469552f3bd07e3283232319fc56e3e","d91421428fedd26e7cecce1d5e33ad568bf29352e514102640bc5ad56ca56783","9fe048f55ef1db993b15a6e86f672087aa43b92600c87c54204aa5032ace339e","dca3255210bd4138ad43ee9195c33d4e1bfb62117fe1834a1314b7522fa9bfae","4799bf594f7e0d9e563de0da432e35b6bec9a5a67d166463ed76ae787b7b69f7"]
Anchored: 2026-08-27
Public log entry: search.sigstore.dev, log index 2611910343 · entry 108e9186e8c5677aed98…
Expected log hash: 357f342aabcc9f7336397f12ae873d9647084d84f84802d1a7af0f5727328ea8 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":"v1787796746663","kind":"published-quote","locale":"en","page":"theme:acrobat/quality/en","quote":"App malfunction in the process of editing PDF.","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 (78886eed79c5…), 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.