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.

“sollte ich immer mit Wasserzeichen eine Kopie anfertigen”

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 2514496096

Proof data

Record hash (SHA-256)

5f01d8ecafe6cb6a87b530be485717fd23a94a4efe20c89eec1b813ed3d9b9f5

Signature (Ed25519, base64)

1t6dyJANHoBkqtLVIz06FD4dyNREex6iSL6qDdjQO4JBC/PB+DIHfMsu4Nm2tCMDOWPCJB9aPO/oLrVCx0laAw==

Merkle root

790984da83ec061260aa072fed7636f9dedf91964fe0be93d7a7a622b2b5a92c

Merkle path

["5f013526cd870916dc13742c41468a60baf5df37e97ef29aa9592bc5000f9b0e","2d60c980122ef3a65c612ccbfbf0cfa3e8f95dbeba57f6896b7b46f9f084598e","4e17d10732d7b1719ae96184212669befa29d5a08b280e3de4d9eb8a6100ef27","c14592f44c3903ccfa159606d845082c10015a8b6ac4755ed6077165344aeafb","17104a9d2920cdee82a6e0fccdb095b0dd1fad965a9b75d00db95c8f0b599676","abc6b61239cc546845acf33033ae415860f60ecf9ed3e3ef1e6b94a2e2c8aa73","0735334c4c097e7e6f61a970e1b2aa64ddc12491b1113f10efb6e0c0bef818c2","157d0311ef4ff9b694b7974b60057aff94cac5b421da18fbc172e30b0f71a7f7","6b109226f1b728a507b3bd82296bc668c872ef6eb98d1a8d4e937e84d055dc58","427c399fdb03f3c9f128e750fff12e8f8f9a16743ddf74f7ec429722e084587c","744bcf41fc6263a4d0bea8d7383c2a855b77d43a105e6ed0d8a4cdd4706e106c","90f0a0e3211fc23b1e8db52b76383f6519eac469757414a3b9d5875619fb9c0d","6119aef4031d03205576aa94cf7a51dbc6eedfdd420d909f325579401c8abd0c","19cc354f6573191d4e7914f94cb811eea176897530d869ad83bfe3cb7fd5f206","c7feebd3045cc2c03d87ca1241b2d06259ffad35db645c59ca3c5ee2004a8947"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2514496096 · entry 108e9186e8c5677aad27…

Expected log hash

5d2238ef768473286d75355f523ab94503f4ccd3d25e17e9efb265aa0f540183 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":"v1787129810322","kind":"published-quote","locale":"de","page":"theme:xodo/quality/de","quote":"sollte ich immer mit Wasserzeichen eine Kopie anfertigen","rating":2,"review_date":"2026-07-31","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 (790984da83ec…), 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.