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.

“Tut was es soll”
Google Play · 5/5 · 2026-07-28

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 2514602687

Proof data

Record hash (SHA-256): fb3b1b6ac8976b663ad33595ec2658c718b37621df2baa6f680e80fac7b7553a
Signature (Ed25519, base64): N3aNfn3/NtRQnet+7kglQzQt8ikA5ieetafjXClXl5oL1hC5zbyFp3rxuqjxUPPxdFVUGSi2d0/5cTSmJWVrDA==
Merkle root: 749703591848535a8600340214debbd99b61273e3bed402bec28b292f90ce9b6
Merkle path: ["fb34f121a118f39cc1ccc6fe9dc4bbc6bcd8d908628ac06169c82ae5f0cd77e7","bb84803a97c713207da928d0b0ab3dc0b278cfd11193ab75e93c3f946fcd9a45","4dd1e3faea586924718b41161779426c90fe54bdefc238e7ac3bc8e34b7780cf","0f7f0df29cfd24032cb99287ed07c351ac9cca48c1eaac58da79487233bc18de","8a63a60477551cb1407eb9d8c0a3d337e9129787fef5988aa2c09fa4ca6e7d77","c03dcf13a6f50803f6b81bb5aa23a7b2ace9cc85a2e742fe8dde98f438f2eca2","99278a7e3ccb49bccecb34d13f238a749cdb2553f64b9e259c161a08f0e38cb2","f75c504820f8ea96e8b0fdaccaad67fdcf2e6fc048872ee091c3c0033281c110","810c512ec03f3e1a466a7774b8b836c650eaf3edd9675ec496bc3089b2904998","e4ff547fc6648b9ad412e098cedbde92a4e53e87530b71079c341bdfc78733e3","eab016dfa7b6a9ee374296f384c3b1d0b28a3ad665ee07caaa1713b144cbb786","28ed7302481a09a51b52609aa599cb1db4784049fa122005860d9c3f9a7188bd","3a5f53ea444f142a988f6ae277939cb6eb91c4ff0e850e312adbb60ca7c4d1fa"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2514602687 · entry 108e9186e8c5677ac525…
Expected log hash: e53e7f935eb508100ef1046b60c784e0bda15dd54afae176c275a97cf1f64052 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":"v1787131269839","kind":"published-quote","locale":"de","page":"brand:xodo","quote":"Tut was es soll","rating":5,"review_date":"2026-07-28","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 (749703591848…), 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.