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.

“Steuer im Februar gemacht, wurde erst ende Mai ans Finanzamt übermittelt”

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)

8a77be285b910778172883a748afac9af42778b1b89c40ae17a01e1c72d81cc7

Signature (Ed25519, base64)

mRs2Lp0AAhwmU8TB/rEsuX2aYhNdqx18bIdacG0rgvldgQoeBg8Saox8RDCIuQ9pzXxgLDkkbE1CQXb6YfoIBA==

Merkle root

04b39eaa56e1cf8f75dc8eac18bf6942167c8418ea731a7471223f0be60e3e6c

Merkle path

["8a77a6929e9eaf3cc7c0957fcbaa49184cf1e2de57419229d845fd4e8027639e","165a3af469920257d32923a6090b11433e6d3bc3626bad4256ada71220f20051","e6f1a3e733944190042dde6d89c0a764b32219a47ccca0eb4da48e87ae63254f","14bbcedd29a234000fb40ec2cd8d1cdde0de0df49548e7eab3cebe278b435785","1c633764d3477e2ac411f25f40c5faceaaeb4b80c42fef81ed0aeb66c13657df","68b29e341a6a6df763bf15d15bd2de2e22b8aae47088ee43a9e9e5d0056a9156","77d9fdc546f05533a84663ed688469068977e5883fa90fc70e95f23c7a53e1e4","4e1bf757887857377d1811bbefdd914fc8fcbe1fd6e1488a712b90a51ffb1baf","08565b741a44904d8a767fb15874952eba18c3b88071a1602c053bda90803965","f6c4243fe90610f03ffde4df627549d0bd2e1a508b87c1f9191e8357d9db17ff","872ec245b8fcfee1c75ecd7ae374fa51ca17252896a9823efb0d51902f1d28a1","f0d4b36101a4d2ca1d8116d828ed0bb21fb3a69b4052c988940bedd5b667205e","2a4eedd2e6770f347c97e6f4e61cb85be4af21173e299d5507007ad47305b4c9","c5cc7ab668acd70733708092004f0624164aaac2bfd55cacefad6637b26146b8","695aed3f647000e14ed985f8c4d6045987ffb913dd12c814d6f9a495d4d25fd3"]

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/delivery/de","quote":"Steuer im Februar gemacht, wurde erst ende Mai ans Finanzamt übermittelt","rating":1,"review_date":"2026-06-30","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.