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.

“you can only save with a watermark”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
22b4b1d1e3453056cc91f20900aaafb87b0beef15be0036530d75fe5a340c052
Signature (Ed25519, base64)
j2A/qicQQbGF86EaM4TuNkDyonvA8IZ2OnKvbkxCtLvMKJ79NOhOkO+hMuP9D6yCg57pEf7FGKL3zfA352HRDA==
Merkle root
c481d62412848235567fda063ff4784e8e49df41ad8b5c570de24ba396415d22
Merkle path
["22b433d9239afbe696ebb446b72df9174af97da73d6ea040a7c4c5f7930f1133","134597755454b5e47574085739a3d1000c066bbc6ba4488cc8076cf655a2da06","e7e1a0fd5863093983879d374db5d81772cf4f5d882d43507d120e4928ef5c3c","6c24b0ee1fc5484cd97d1cfa2ffad9d1ae09a8fe19a69b7d76cb6e9dc025c8bd","7dfa5860fcca6e5a233352a8638dff798ef80e934cba4743b152eb72e7f4ab42","734486371d235abdaba30524c16e663fa71565561ced0ad2245babca34c583f9","aa9d0656f841dd5fcdaf4b244a68d0ac110fde9224bdd81a110da5c81017653b","89a0c08aece4bf6cdc18689576e79a958226f479dd7a3021ea490fcfd8c18ded","2ab4230f224358fc78c7f4583f8ef98f43f5fc1a1e9c500b851d2f5cee4f577f","fa517188b0198af3cab4e2b187c429aee918fc8c3953b9d516b763600094b8fa","21a222cff0be563e8ac212d3bdd166f0ebb16410737d2e231c173e9cd03fa9e8","a8cfe7f15d1cd89003b8fde2e6212a989155550fe06bf9628f8df7e8a0744bdf","818f0135095488afaa32256706f222f09138af7de4410ea79d618f621eaf5cb2","ed99a4b837bfc052822e7d0dbdd9c56431a87e8600550f5deaf9f7068616c82e","0cbfc145d581a4c4b7198ff8f397c34cb4ba6263e9e9892372f878302426dbe6"]
Anchored
2026-10-07
Public log entry
search.sigstore.dev, log index 3124493015 · entry 108e9186e8c5677aee70…
Expected log hash
0056b042c00529af1248b70a0a2fbed761990dd7841ea722369c29a2685ea6e1 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":"v1791350987184","kind":"published-quote","locale":"de","page":"brand:xodo","quote":"you can only save with a watermark","rating":1,"review_date":"2026-09-29","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.xodo.pdf.reader","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 (c481d6241284…), 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.