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 use the ability to Mark up and hand write notes almost all the time in my studies”
Google Play · 2/5 · 2026-09-20

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 3247957099

Proof data

Record hash (SHA-256): 2a90436ffc7934334784329a4ce8db2cfd91ca21f04759eb2405b7b0dc3bf5f9
Signature (Ed25519, base64): pJNDKSYWUfgbr2WSN2cHdL9gWkYdY7TV22KCGJHVvq0gSYoPvTVzMBCmF5hUvqycYqWeMEC+dImYN+anGmW5AQ==
Merkle root: 417e79c5636392fe3ad064f685f70971e5d532c1ab257f052022be5e8b8c0dd5
Merkle path: ["2a80abcc1c67bd82d4c637ac9fb32f4dbee9fad68c6656ae7d156bd958a63f1d","6eeeb11ec92af3f04d26880aae39f70596a173e5d4ec63b742eb685d8bdc4324","5881f1c1ce5186b6b0b9a62b6323e5ad6845a4ed13a73f7c9b8bcdb1d873cf97","df43fefc90881ce201c07b70aa7d9658d5b33d8c7659602015bd38daa4b6f9d5","8855da6458ba849842c52ca5810298fe8f232814e6b503c6ea0f4e2b1730b2d9","cbe4888cefea1e8cccb52347955b3ccc8a7cdba97eb6c9fb076853698f812980","d6226beb47602c680d4bddca72cbf8d45b97836318ca1514ec6f62e2ff7d9530","f0a313fabd9d320ef1ce00799ae1cb0c6b5bb61c7dee12c1e860c714f46dee0c","13bb965f163486ffc52a9e4bd47d3e1ec24f913db6f7daf14a6912beece9012e","abe77b53b2ee7992d3a9185eae067db08d6633608195f75c6e3053a5b1a95d69","03012541f578e97559a1a490db3238dbcc3b9520ab1945d5807bcb1b6c6ebd9e","97cb88af2d1e7978a1c013f49971981dfc6f6640d100770066cc14dab4231824","a3445df7b332a2879d9dfcbad4af79652a13ea138d6afeb81448d347f1f2d128","57e0ae13344994ee6a0ba58ca5aa3276e7427d3c63abccf6f53bc322580decdf"]
Anchored: 2026-10-14
Public log entry: search.sigstore.dev, log index 3247957099 · entry 108e9186e8c5677aa2a1…
Expected log hash: 86fba1d35010991e0e45c044558780825516b744aa3dd43e559455260fbef42d 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":"v1791946591199","kind":"published-quote","locale":"en","page":"brand:pdfelement","quote":"I use the ability to Mark up and hand write notes almost all the time in my studies","rating":2,"review_date":"2026-09-20","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.wondershare.pdfelement","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 (417e79c56363…), 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.