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.

“according to the expert, I should have received a refund”

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 2882354328

Proof data

Record hash (SHA-256)

cb42a167185f0ff33d707b5287f74ae25c5af8d088063bc91d54ca40ebd4d50c

Signature (Ed25519, base64)

8EYnDMTUx6wwL6xvScr3LiKjTVf2fOcG1lt9zkJLQmxM2En66rZYPm/dU2M83P9eZm2SzrOZOija9c4K96QoBg==

Merkle root

a893faa173c6b378c8d050262e841ab57fdd89b71985eabc0906c40abd5b6a6c

Merkle path

["cb4225f82c8dbcebb05142f9f131c15b6b425951d6cb02d6db1b14942e60998e","0b1e32f1cf40d8037169f05662e12790fe8461f66a105d76187f8e53192a7a3f","40fdd3a013abfd0537abd919a9f364c7acb50ce8e8c60050f54b2168c1659780","857a604854fa280735ccf1b1e35c2d83baad76ec4ede7d8e778b705cce8a7494","cbdd37b1ccc6d5d4ac80bf8b19bb561a35557d2be7a7a9f576e4aacfe127fb1b","d2c4c9fccacba70e71915a06caed74529163d3db628ce758f1d19eac8bfa2546","2f0c1308172904209e6f62df0541068c2b3c1bdd9a7d13593c1392f1bad1a0c4","4cd2d9f420ae5321bbae66ea9b88e9b60d09ef25e024c7978a3e1f868f7d67dd","5285df21569955e3d06e23a3051775684f4b15cd1a6542655fa24675fb49c882","62e29e8a3867f956e89cd38e92507fa4da53805e83340c03fd978944a5af0825","500e9a30c101dc501795cec8416b41fd13d25c0ee807859f2c0835564df9e5d3","589714cd3af91c9cace4af17f27ce411ab407960f2c1eca87150a5acdeeaab70","e3dfd0ce13b4f18d9be466f664decf913e4c761baf693ad01a6280777721ad5e","96604383e0e3cd500d4560285508cbcc8eef5ad88e576fedea27dc38c3fc8ebd","142316fcc45d8fbb9a33df6e9be8f563650927c4e612ee96d4bcac9064ee60c4"]

Anchored

2026-09-18

Public log entry

search.sigstore.dev, log index 2882354328 · entry 108e9186e8c5677a08a7…

Expected log hash

5510a497abfe2e680a39c301b0d905c2a575bae0a1f389fbdd7b86babf05240f 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":"v1789619628558","kind":"published-quote","locale":"en","page":"theme:taxfix/service/en","quote":"according to the expert, I should have received a refund","rating":1,"review_date":"2026-08-18","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 (a893faa173c6…), 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.