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.

“They change the background to white, so 95% of my documents don't have margins”
Google Play · 2/5 · 2026-10-04

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): 1615a33304365175471c861cb38ead41bfba814025eb795289cbc05e52105716
Signature (Ed25519, base64): mZxOGA4OafTFTxtmW94iq84X5UuvLHWDI+tKDtOdvZK3EAFIuUCwpzP0+jT+aor+3CLwAW9K2suQJvfGCtBjBQ==
Merkle root: 417e79c5636392fe3ad064f685f70971e5d532c1ab257f052022be5e8b8c0dd5
Merkle path: ["161001ceaab2fcfb5fbec238c5caa1ad7001cf25f6ef9bc01fc07ce449b6193c","a4997f0ffed68c64254c45a99f79032af85a5d47054b86a8f859ea56da19af39","e3aa8ce5aa1e297674951b2cdaea3381d04875b960f0bd45c33b63ede4708b57","f9db4641b923fb12b87f8de283e646036b3af551af0183d9bd216ce9846721bc","f1836afc227972cf13480302552dafb03e31f8a6d00bfe1bae1358708f139d6e","f59cdab1f6c2bad12efbd2436d0cdec969ed84d999077e23730dd0be93b151f8","7d2b28bd015ae448cb48508bf622e0888942a2aefaef446808cc5e7e0cdf204e","6fc7461a961f307df5e59cff95481572e6c9a0f9e5088d53a4d3d7a0708fb1b3","e61bb9c03fa26c085185e92118722fb28dd9cc4b0e5993179a576f99f1e5ba2b","1251b16766b116aedc850bb59c3cbb6a474767921198cb2502e7883a9c0eb800","9848aa7690391972fc1e1c527156d4ff6421d5bf48b49106c60eabbbfb4edc4a","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:xodo","quote":"They change the background to white, so 95% of my documents don't have margins","rating":2,"review_date":"2026-10-04","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.xodo.pdf.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 (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.