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.

“excellent application for editing pdf”
Google Play · 5/5 · 2026-07-26

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 2515439294

Proof data

Record hash (SHA-256): 62aa95321a3d38b68804eabcd658ff5b208ac5fd06872b064b0c4da3be08e7c3
Signature (Ed25519, base64): OptL7235pafqO0mJ6Sb9LsUgzOefVJwnrsIRl/UjUCajZk3AuTosi/NLRIJ1zKEy8Yymdz5JqPO8Dur1bge3CA==
Merkle root: 8c6268a14330d1a3403c561e774645b0671f81571ec1735d4674ebe1de7502e8
Merkle path: ["62aa5f92be93b280d041ca03f256e5a4d1835ad1d5ddbeda65dd6b3d355a9d41","52a0bdbb611b48950adf81f6383ac089a92e1342338ecdfa837762faf0c819de","37f6a4f6386e3c1d42df9457bf87ba18dc2a9868783e54a2acb54f1b2125c873","3d50b5dcf4b34341f4d7033aed3a220d23bb83580bd8888784fad2e3c3de9faa","fd5b9c3bf93307525a5bc15e86c7569c9e2f53c722c904c1c496783bdb503df5","b50e1f8bccf0c684c7c50418ff3a3534c79e92f14fdf68ed7e8d9f76c9a87ca8","659b1a570a0981f0bb546413634dbdf085ab6ce758da4284e48e4876f88b2bae","4efe3ecbce2059a81c32a0279693970632bc1f839094382ac4ae758b20680177","9a05a881414af5835fd52f831fb658a0d6c7a8d055c9493d370b4caefb7704c5","569d8fad739e26a3a43da56a77d3af052c20001974b060767f62a6f109293884","873250fda75b72c460b3e95ffde7dfacf27ca8c77ebce7d2f139ff75027e1fc7","da59334afa2d819633e90b55a7c9b28b3150a2ebd2ea3f870365a1df4a927c16","747ba0b6317c3750e6242affadccbda44b868489e275092a024dce997ae773a2","3a0d3c267d2a0d179768ecef7d342dead457fe1d4866ccc6b84c72a8362e4b38","f548939ab1bb46e2c6638c372c3e2eef0d561ad18c63c15229fececc951e0b3f"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2515439294 · entry 108e9186e8c5677a4f15…
Expected log hash: 128701fddbb19410bf57cdb2d04d7a0278d13bcfda6410d76f176fa58341e1c9 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":"v1787141082461","kind":"published-quote","locale":"en","page":"product:acrobat/pdf-editor/en","quote":"excellent application for editing pdf","rating":5,"review_date":"2026-07-26","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 (8c6268a14330…), 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.