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.

“my tax advisor is significantly cheaper at 560 euros for the same services”

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 3273209361

Proof data

Record hash (SHA-256)

249ddb6f951a0a715694788b30d891b6a262ebd1b5a37cd83bd14f419ccec3ab

Signature (Ed25519, base64)

zf9x+CmC3d7IfkO7G5+Z0G+lagligZ3I/rPEPXDSU97cTMJCUtmcSDQJkUfH4jEUUpOivS4F/YHLvt1OS/MqAQ==

Merkle root

6ebb2d3fb78e4a08533ac6b6852f3c84687141ae9b0e78424d88bb4161267bbd

Merkle path

["249af2d4536f640a6ee97993ab27cf7e951c102b03e00c263c988b1b9540d3e9","4fa4b012a5c72db03bfcc7e8d23c23c056eda857f8dd775b8c5b3bc91fa767d9","d0ade51e04bcf2674526cb40f8e2649ad73ac37e25053a8ffb0bb04025342918","77ba975f43f609d4b1e1ec10b35f92cd7066272d690ca2cbef18ccf8fb2aedcf","0113e11b2a7e9003494eb393196fbcfb559ad627487d6c46abbdeb98641871b9","8190b51f0ef6d8477e4420e4e7bb4b767938fedf124192c2359d98adcc4cbd79","938a502eefaad46dadac3893b7d5c521f7d781787ec3a8e54757f4c3dda515c8","dd4c494744c21c89f2cde637a76d358e30a7de6623ab4db223a0245267a860e0","99cbc7c9b2beda60b572b5a5a2a86a1de0de0dedbe568a6cd9dd02196791c3e5","5ded56443510d8c8115833d519272d0a72a50f8b3c21dcc334bb9630ea976695","c6505d62fd1f18a4c80c5faa97487c91b8a68d4c0c27d65e4983982245aadb62","fc73c2b0627636c8f676f008d05fbbd4dcfb7ee0af08432d0bea252601b2007e","b2809ea8af334e57adb596cf07ef2c411ca41ee72761a0ae0fbef01d75a71a23","32d6dd564d479cc6b7834d44d5078d8ebc72c40210e72f0d380fac04d2d8e87d"]

Anchored

2026-10-16

Public log entry

search.sigstore.dev, log index 3273209361 · entry 108e9186e8c5677a732b…

Expected log hash

bdbef22d23477d2ccfe2ed182ce8ec54934b3bae489c9913db850af171e33062 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":"v1792121074379","kind":"published-quote","locale":"en","page":"brand:taxfix","quote":"my tax advisor is significantly cheaper at 560 euros for the same services","rating":1,"review_date":"2026-09-14","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 (6ebb2d3fb78e…), 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.