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.

“Mein Geld nach Widerruf wurde nicht erstattet.”

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 2890214870

Proof data

Record hash (SHA-256)

a7cb4aca916560871a7566f8b0661e5d79bd8391147b3685cfcb875ab5f9c5ea

Signature (Ed25519, base64)

l/KwvwPnN4PbDQuNsLFDsTtd4tUzfpa23IFFxTgOX5yP7eQGyevqNxBukZZMc3y7tSTo+XKIyD/1pn6b9zTbCw==

Merkle root

04b39eaa56e1cf8f75dc8eac18bf6942167c8418ea731a7471223f0be60e3e6c

Merkle path

["a7d156bd5aadfa2d9e9256beb8f3c2b4b2f05cd6c9b1ee0aaadcdbc8963c9b5b","d8e03bfdd125ea5b65171b27f7e6368c6da320b193f0cdb417b6d96e3a45fd32","27609b7e54d495c6fbcdcedd73a51d749344d9f70e625c4a0d18f9006db6cae4","cff9a7c18feba096ab90657054bf8dff4a63bdcde5db90bf6e869ab0111dc62c","bbd9291ebb136ce61bb27642d8b0ffae66162c400275a130aa072a8c2c4febb0","5f09e313178dbd61e2e1ab6ac4d4051433d2873dfaedf48eae5bd3f90bb39f8c","f59f3ffbad29e96c1c38da4a80071ed25271400c50b326de1cad82feab1dfe4e","de6a67bb2cc677f8e5a8fe2980e1287198bfe3b3e22f315fadad8f8b9605b114","a5cc0a91feb0216bb2219d7fa7f4a0a7b83eaa1478d7d2659884a2c288add443","35f01ff24544101663ede4d237cc2278a36987e16c8af5cd0c61c022781ea3d9","8dfef14c860c8ee43da5a380cbe5bc2b4c4e0ee63a7f062311e6ec1f302c9965","c1934eee39f083a1bb0634f445e2323dd708991a6df06ff59699cda4ef1f90c9","2f760d0f42bf27702bb03975eaf8d6ea5e036b0f49b2fda05a97a4b8e2bd9942","8f074eddb198349108c1e544aa98c8c80e756f627b29b4943cfd74cb3331adf1","3ba88b0016422cde319348a72d81ed01eacc4bd155bae80b5c4b6ab6d98a745f"]

Anchored

2026-09-19

Public log entry

search.sigstore.dev, log index 2890214870 · entry 108e9186e8c5677af53b…

Expected log hash

1f3acef0f063246e051bf412e40f4279cb96ed334ff7b0647a13320c1b31c4fa 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":"v1789722569406","kind":"published-quote","locale":"de","page":"theme:taxfix/returns/de","quote":"Mein Geld nach Widerruf wurde nicht erstattet.","rating":1,"review_date":"2026-06-16","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.taxfix","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 (04b39eaa56e1…), 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.