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.

“however, I had to pay a processing fee for the "tax advisor" in advance”

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 2948162176

Proof data

Record hash (SHA-256)

f60eb09e771963c954dfce9d8b682a04871667aeae1dd30150f89b44062c73a1

Signature (Ed25519, base64)

5msVNvzcDPGM/99Py4vdD2HOfbxOt24wLR2yUxgX+aG41VHxafKl9T6vyxDeswLBhnSLyIKHuOVhjTotixM1Dw==

Merkle root

5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd

Merkle path

["f610f044407891a205e7fc74811a616286c9e4e8e066a16c9c6c7b63590a9e52","b20f9aa8c6793703d7307a497a4e8dfe26aee3b9aa4d976b55e8f251920fa4b6","b4b07872591d928949cd06feef0ce341dbc352b166fb48f2ae3a09219437aabc","5382201a4575f793655fc81c9ceb2146264402ab88db22e5159f135cf55d8011","4229ad43f88e2ae6e5c5989d547e3a160d841778ca664fe06ba8e6f7701edb1d","60f35da896f1908bdbc8796afc7001378aced4ca6fac2804a31667741038f559","5854530b78cd5b5fe8087e3abf0acb5ee9f8585cdbd740041b3263fe423dbee1","8e788c8b563e52e3e2896ffd75c2b635dc8012667431bcf033a97e1a2ddba787","4cb9d737a48200edf680454391148f5a7aeaa7ae40bb7e588ea23f8825ebfbe8","dec34de22d58ffda9d721d248370bfe8679cc060c0303117817cde010304106b","cbcff8c764f5bbe7f5e76017c06c97692cc9405ef5d5b0e43636191e4b6b578a","dba69485f1d01b1a1a0b025a8d16147fd90f9473b16d200f26c0a34e7aba2d46","82803ae7220a028dcdfe85032be69ef5f73bd7602fcbe12652ec0c9b240ad883","aaa7b399bae700ce8013bce7d22a5956b227f2e0adcc638da32f9fc5e72da67e","77ebbc5a767f49a9f64068a716a8c843de0ea8d44adc624726bf46e2e415a41e"]

Anchored

2026-09-25

Public log entry

search.sigstore.dev, log index 2948162176 · entry 108e9186e8c5677a61d4…

Expected log hash

5ff8f25b7934b5d72d363d6805344624efba4d637f2c851f11783b259b9d81be 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":"v1790226990092","kind":"published-quote","locale":"en","page":"theme:zasta/billing/en","quote":"however, I had to pay a processing fee for the \"tax advisor\" in advance","rating":1,"review_date":"2026-09-15","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.app","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 (539721061967…), 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.