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.

“it fails to register strokes of my S pen”
Google Play · 2/5 · 2026-02-27

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 2543266411

Proof data

Record hash (SHA-256): 95abab7ab4e2145f5e50d858c86dd210302b37edd59664ca5bb8020f27bfc261
Signature (Ed25519, base64): Hnap2f8RNMPssRS14oAO51hQBhEUh5p4OBYpNDerTNLXN9dAMYaR96xop9dJ/ZkkYou/ZSukgxzJAqFxXd4aBw==
Merkle root: 8ffad6e97d1457610bec7a891f189d1ba7dd7a92ca672c69ff1ce3283acb4b5c
Merkle path: ["95a6dae5bf90ab9a8be1ab41a72ee7c655b5961e690282d7727ac72bc64dcaf3","abed1ea04961b44649da2f43e0cf3334271b3bbb9cbed0c525eedde9942074a9","7859cfe3819c5c5a13bf78bb8e439c4a2378f921fd944d206e052a4f8c43415e","6c555ef2c75e69a9b55f4a327706564cb9ba204421f6902ade7213ab1ece06e1","a84f2dee164d0f835616f38dcf7989472ea3b5563e1d5170651cf1ed56572ee1","7110ad003c7ac7b283c6abc4fdd19c093701ce812aea6a462bf8ab4628124fc7","12826e01be46356ee9c6dd50d02ac1aa1af08c5a75a4890481d034b00fcd9a4a","23d3acfd6405f4a76f480270429552d7b839164657b91cd78a6dc9d9d82d0331","448e000057b38039767e6449952e42b1e5cf265d8193f4d6e9566556d5c188f5","78cf84f32e4f76b51b0427bc94248f2b3aa74d7480dd35bd5c472af869e52541","e3846f1a3ee14e660ef8d0025cd543a77fa9d24f1016c0a67bbb65e7d966ae67","9ec9a8df929db493acf468b87619419d60b2bc485a5d393354eb9a1942f9a242","39a48080eedfe395d9b5da7251ccf1f49d6794a6866e66ab48839e2e5cb3a5bc","9d2fe576119ee6748db015f1bed3e423f559575b84b49b458e2b5fc136d5fdd9","e9f7ba9964da1314f660fb2f84a68d574ffe9983879b5b54001a09ca5cb5f33e"]
Anchored: 2026-08-21
Public log entry: search.sigstore.dev, log index 2543266411 · entry 108e9186e8c5677a241f…
Expected log hash: 443ef8f29d5167ebb4c56a46778facd07b7651afa8db2d089c14a991ce0d04db 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":"v1787284817344","kind":"published-quote","locale":"en","page":"theme:xodo/fit/en","quote":"it fails to register strokes of my S pen","rating":2,"review_date":"2026-02-27","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 (8ffad6e97d14…), 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.