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.

“Mit Experten keine Verbesserung der Rückerstattung”

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 3240367269

Proof data

Record hash (SHA-256)

4eea1593f57c7ab4968048a5fa0263649c5d156d3ca80bf22c72d4b0310a948e

Signature (Ed25519, base64)

AJjlpF1VGFSIblo9fTYyCU0HmE6iN29wm9KX8DuNxeAt918lf1sYuGtf03JVBNbHbeZ9tH4DSj/GmP9vtDqhDQ==

Merkle root

1da6cf8d96c8876e66e82e9bea7529c76d7e25eda1c07550505caa1baa49c4d1

Merkle path

["4ef494139c64174a94c1035edc4c426c7d45a5539cbf4611295dec6089060c96","881d661fa53031560e65ba9a4ed20056467ff47d78d53b087cf0decd6a6d882f","b1ec71de34c56cd550c2ee8e696cc3d0810c4feaaaf2d1beb03a5038776ea0ab","38e0fbe1cfa6250becfcffd8ebf997362a9af01a055ba2632ba00196cf68034f","a5cda5230d884fd3533fe16de3606578b01cc2b8e61016fc5a383da75a66bb66","28e095328a8978f3baaea95ce2f7689c8963d8754b0872bd537fd518122891c5","2d8f76b5fe8279ab268a8bd7b77c6efb577e29eb070721f7557f609b4fd4c744","926a886cab505ba4fb20b83915659cf6fe8cce522479ca21f42274d6d4cf98bd","63cac8e529d0f949dcf47ca7da009c573c79d777627c32fed72356fc43e008c5","0a78e756959175f4ab54b5aaeba33abc516cf390ecdc63475b55a39a5cc01baf","67e0df2f702b6977c8afd5b2e15cdc1d71870f928c9526ffdcaf399732267f13","994e6d7ea103100577c4cab0d6712d9ad97559bd32eecc5785d3b2bf668cc0eb","d0886e619546ab8e630cf9041b21d39a146861d5b7598b5044808c3537212a80","2d81003ff1cd2149e42eace973cb0f4cdd39b653f7b06a20804a1f1025023ebf"]

Anchored

2026-10-13

Public log entry

search.sigstore.dev, log index 3240367269 · entry 108e9186e8c5677acf8a…

Expected log hash

f6397ecd2b8639a3c60345d0c567eb602411c7eb1bead248c760bae850816087 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":"v1791861381931","kind":"published-quote","locale":"de","page":"theme:taxfix/returns/de","quote":"Mit Experten keine Verbesserung der Rückerstattung","rating":1,"review_date":"2026-04-15","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 (1da6cf8d96c8…), 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.