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.

“gut und schnell”

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 2907673729

Proof data

Record hash (SHA-256)

9ddaf72fbe9edf4c7d4ec52a016e4b7abeb6aacedb733855fea56b1132a4fd1b

Signature (Ed25519, base64)

6yahibr3JjLNmyX1NLKEUmlFqwf0/tmAVPklj+7S4O9HVzQItFkNNfaufiHS8Ab3+QBFhAIBQTbYXu5DTCyCAQ==

Merkle root

b9a08f9d6d76dd148110a496219c42cf3205c6f982800d84d5c85d77e9461e02

Merkle path

["9ddd1f6da4015e5c08846c0ee6e11671fbd396f139a624a547379dbc912e7b8f","0125e22be1523e74a9d835de557ef6639dd7c762baf9e88d23cac8fd20832bfb","677006e76eca9ec188d4f72735fae376275ab8e9c39987266217c773f58a8be2","685609a568efc8557ee51340721d2cf30cfe85908e903d64d1a46fd36d1d36c4","e13ae5a106c47c30e2ad7f4e9f250a7ac13ab30583fb8f2660ba7387a6065812","09e0c5aac68716a3e7ee9f764a1151a653a6ff08f254612a5bbc85319688cdb2","766adf2982521c2b5014241258425d3d71f5a6e79ef16edf59285056fcf62362","152e5ffc7c8aa72fc8874a458996244123edfcbb78b46bea1d94b3ce7c582316","1e2a6efad6d726750d54175ad4678925e192546ee95e9afdeebde870c02581f6","b66e52450462bdf556c8a902f7682218d3ca60c4db7b5b22218f469c0d7c5a1c","2ffc2611ccd8983110ef2e74a086c318f6a1426a73ab5eff0c34d768ba78b3c1","86f8c9575acc759d5eac58ad776858ebdacefb73351960cc2bdae6ffdcc2483e","e73087a4c89fcbfd62483a37ad723e600377233e603592ed8ad92c5db69f30f2","05978e8b9ad5fd39833c65b8b951e8c80cf426334c441fa8a8bff8eb8eeaf534","4543e8b9ac7bd077d9526acfdae449f0a0d5517cbb42414f50ef930ecdb9470b"]

Anchored

2026-09-22

Public log entry

search.sigstore.dev, log index 2907673729 · entry 108e9186e8c5677a06ea…

Expected log hash

bf9a74000249ba6e66b1e29aae9d8cb95c3400dc118569a80e5c0949f3e8ac62 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":"v1789969984102","kind":"published-quote","locale":"de","page":"theme:taxfix/delivery/de","quote":"gut und schnell","rating":5,"review_date":"2026-07-26","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 (b9a08f9d6d76…), 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.