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.

“Requires always an internet connection also just to open the PDF”

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 2514083622

Proof data

Record hash (SHA-256)

fcd39a48b5e344260f5ba3ca2908b7d3ff2b216250c84e6a9f0262051d85841d

Signature (Ed25519, base64)

pL6XXDM3/sMWi+kHFn6eZ28BHv5vCMoYsCfVPort4k285BAaVyn/rt+Td6u1qGjv9/53ex9N2HRCnrp7Q1+BCA==

Merkle root

c35385e3159410853b606ace3c93abcb561dc35874bbfae2272c5b0050f06a48

Merkle path

["fcd546947399e94fbc21c2c2e55af3bba7f1919f886baac345ce7ec3860ded6d","f2932f60b74b54c4ed163a728087b5cd1de605400f99b9db09b3f0f880390323","a9fb7e14d2c8caf5bf7089e8908ec96c4a873a407de919720cfaa923c7ff699d","9b5c4dc9a6f98de9c69e3ae26890461a1c67f0c206d5178d4830d0704f398c56","d132212bce35dd7e84aada88ea27e4ff564beda65b5e2e0a6a85aaa270fa5288","6a130466a07f2306b15b5f90917667ac9724993ba80f3eb8cf8efcc561040425","ef769052105dc7207eb3ef92ab59f3b217c23717bdbc799af477dd1cf1c4f3a1","b165c62af51393416918b0ceec5d985f558a062ce76019cc5a58697c517d7748","2940dc18fc3f145b41fa584e5a38f347156b6a8c5087027bd8b2a244cf1591bc","6c004d08604ff9cbf85ee1ff26561d46a0364c179aa33ec43ee87f77d4c07c6f","efecceb8286a6229e87b632af282336e6099f847b98801fd7659fd63fa8b4e78","f6736a9df340369491122dc83cdbe986eab98696122bad100ccfd05288b49a1e","c6a0d5b9a6cd8badcfc7fc966f87c537da74da6d7b76d14d1aef5f5ac379b21c"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2514083622 · entry 108e9186e8c5677a81ef…

Expected log hash

eb47f42546fcc705387579993679cd6250c0b995d01bbd10805cb4c8d66efe2c 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":"v1787123762743","kind":"published-quote","locale":"de","page":"brand:luminpdf","quote":"Requires always an internet connection also just to open the PDF","rating":1,"review_date":"2026-02-18","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.luminpdfapp","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (c35385e31594…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. 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.