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.

“Super fast service”

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)

7c90fa15d3d44e59ba0beab1a0bf9cf603caeb55bdebf3791449401176a20a75

Signature (Ed25519, base64)

TD0Zen00gqhxKAJAh7eau+/9ouGqPk2gPblkF8dX5Ne7Tqw67JBFWmcf1jI3v6Rwxd5K/XoaSFbg0VJkJyRKCg==

Merkle root

a893faa173c6b378c8d050262e841ab57fdd89b71985eabc0906c40abd5b6a6c

Merkle path

["7c93b5f433c4631c4ea3733ddaabdab8622ea24711e433731517c46a0a398bb5","c7bc6c971eccbcde53696d84ad9153172267419f12dd49c6b683ae7f4d7df945","5061a06b1f5c5c93c6cd50c755505c7bbe609b9fa173b139425f6a8add62a1fb","4c4551e09bafc3c1b2820de9c0b24caf940b77431092b6d3313e64581557cff9","5b77507a456512f5bdf5afdb48c4497e80463233813da6154964d1006b426233","82cb317f8f0007782cf9e654f65e9e2ae1e2e1f15d8fae9d1e6f44b25937e56b","22613f8f1bf6693132fdacc7e727c18cbb3a09cecbd57b173f7955b25971f11d","2c92d2a1fa2528ef6832b99a673c19902f558cc64365580eba5601b020527899","d94dd1a516e650e896c13dc3f6044b6ada3f3d2784195d16d159502b482b02c2","6684f609dc86b73d3e9c1d4b8da0cc9334d1a39ab5b2fabc08bb21e7b0d6a7d8","bf0f231002615f7a0e37278297f22c94c429732d8c5ef69c00664141bd4f8e5a","39e1e03006452fd270793aada40126fb17dd5cd8b3ccc2e379a2492bef47a199","d116928dd89f0a9ea13414b0fe2d577ce3dd16007ed8754e9f46163a67e25fa0","c2523440f419decfbfbb1761ac468558734f6da135e5a329b4c6dba0ae899966","5153df72155ae00831ba1e4416296382c39280ea82c989972042c066f445006a"]

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":"Super fast service","rating":5,"review_date":"2026-08-13","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.