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.

“Abo am selben Tag gekündigt”

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)

ff002cc924eb307afa3dca41ce23f07d533f52eea1c3d750d1e8a646c12950bf

Signature (Ed25519, base64)

vxJF7DLlQezkDxmPyrANatMF3BlEdzTOu57cgKI6Q9HJL8bPwg2ebeVoEQyGN/y0yWXHitnrO7f6UtJOH/JSAg==

Merkle root

790984da83ec061260aa072fed7636f9dedf91964fe0be93d7a7a622b2b5a92c

Merkle path

["ff02c64847afdfbf0d551ca72a8f95845676cd5cd03b575ddf53bad0496237bd","5e45842a546e4be53415e81459935d817630bbad5063094a496975048da10009","7f14c9e97369daaae07c649f69802ed5caee11c6edfeca43fd2689a5a28b2319","e2f830005313667e6589920e9911a8f668dfa53c9d27d389073069b90edbefc9","1a32909c443a593105be8590fee07e8ab4b3fad38c89f08681edca45a6d0adb0","f91b50b590f6ab0ea18b0d0b27fab31fd72b6ff0a8750f293d10be426ff94c06","15fc51cd3689d5dc8f978b13102ed8b25ce16580f66a2f73b5e2ed2c8bf19e3d","b9c90069e4ed85618661ccd6ea95466be3fc699befb36775dd4f235ba0c992bd","f1578a257c0199e596be42b5213e4f7ffae432915ba30ab10190fb0e15409c24","d5fb207a86b67b647b13f29b7817b4ca8d0241be4e86434e7b18639faeaab51a","dc8f49957482e303ad0043626560f6792c77797b3e643ce8938269072f5b5989","f5462a340e729f67917c14af332de1a35212c814f3540ba892394083b7958e11"]

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/returns/de","quote":"Abo am selben Tag gekündigt","rating":1,"review_date":"2025-11-03","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.