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 like the fact that I can highlight”
Google Play · 4/5 · 2026-07-04

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 2514383033

Proof data

Record hash (SHA-256): 7002b4acc5caae8191310f856b2816985492c11970cd37e596f410d0cc542a55
Signature (Ed25519, base64): uew2M2A0tSjPvJMPV69xDUOIwXDRU+R4ZYJLZWMrPrScM4MkxpWemSnjYv7LA3Sz5eVwliY+64LRnwXvcUggDg==
Merkle root: 197f899fafda406e0c9d0591eaf3664c281655082dfd19c34045187b374127b6
Merkle path: ["7000c0e7fe66ebde2f0d3e72739560ad9bbf57a721e148036f22220bb0ef3c59","149cfe7dc3897b3ff5d645cd11c8983bf844fca8d4fb2cd17494cf05b870a622","872e37502d698d9323c4e7e5a647262742fc8508675cfa7450c2f7a5a7039f8b","4a222919e7cf8c1505ba941444ff6275cd84fe49bbe2f28402ca52c929669633","17225154e7a5a189f6a75d168b369fa62a22f56cc65e834f15968b69bcd50dff","f7efc8fa7241e2bb51704b08f95dc8ce112b8d2449200fd64e3373db954ccc26","b1b2b1fabaac1dfaa8d11ecff66d9b546dab40a962adfc6b692b24ea6f00e318","a26c8d69e42f8b9851f33051e03c7e9d6f5d54637bc149d99b3d7da6780031c2","e09d92a6e768c010d6d1bc96f2562cd96c133571ecdb0e1f67cb7abde8e9fd81","ea6bcfd358b3ad6afd07823763d6de66d1e075f46869b35690514315b7262c01","f71373c0a745cc64303d858d6551c43b81f8ae9c0989a7b7e2d1aec80e34434c","5e604b5a5ef639be948323e0c4f5e303b5c481fedb2d584ffe1d863b4c3faed6","b26bec0bf0b0cab86d0ac84c71035185380da1f423e2081c4e404f2e13042a04","d72b61e7a45df808bdf968855d1d129de3ef5b87939ca0a06b3c95e25211241c","7b5d4c2155ce4f6908bf1c61cdd8b51ce48d7dc7c5d7f3bd9a7ce68fedb43f21"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2514383033 · entry 108e9186e8c5677a6078…
Expected log hash: 4e5cbdb3dc34f3dbd6a57b603e905df6c94968b41f5bd83d5c9a25f2ea060d8e 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":"v1787127398505","kind":"published-quote","locale":"de","page":"theme:xodo/quality/de","quote":"I like the fact that I can highlight","rating":4,"review_date":"2026-07-04","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 (197f899fafda…), 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.