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.

“Tax returns don't get any better or faster than this.”
Google Play · 5/5 · 2026-09-12

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 3248278454

Proof data

Record hash (SHA-256): 50b2b71cbdeff7188871f986cce49c02cdff8e73e45bc46c267fd7c7e23de4c0
Signature (Ed25519, base64): Jpx0NstE63X3uLsPvqCzjyaOdyiuR3UpwCOa3bnpUz6ejpvt4SdIXLpG/INQcvrVSIqgpqStsaDfqrvZm9L7Dg==
Merkle root: 81db1abd6b6e636da393518bb64e907fa9c48581b44ac2be5a9e74d02608e451
Merkle path: ["50ba7a3fd131e4bb395825bb9b0bd7134ca6921195a0210007b20eba5ab2b4ad","0c283ce251df90cedcb9966edf2b3e74195deb178c23c6c794cc3163b7e20735","87d6aa98831c8aaa1a8905036e16836b82feb4202ce57f29c4859e08cb40b75d","74b6b2d0abb805d5bae80cdaf4122d1e3a971175e658027cd6a7fa15b342e5b9","136a57bea505c9fde0c200c267a83f0448351bc116fd109dd3df04dd457b0e66","3d19292b2e2a71f89c660bd3723959f7bcff8f87cd2bd795ff909e33f56b6a43","888ff7fc46d4bf4817e28f519a73d6c665f4ae772a6e26a3e7db56dcb6d6f43a","679cd0a0da3fc39ab0041b550ec876bec62cf7154226dd6cbc8ea040e6f5b752","9d71ccc9f8de1f41728ad4b017f7851502fb924daf53cefd51a9b74b7002ed62","fa6ccde5491dafb2ff778b45d3e8a09145a1c3f73ea1c2557d62b83aeea5355c","cfd5cd803ada667f9ca2715e10233c8921b1a46fc863f814c429b8b24bca26b5","3fdfbce5ad21b885f11747a0e764cb6dc9b91f78a8b6101f3123635e0a22e27e","4fd1b36929337d346b3723be273df6d7588bc7b080f058260d538b3f309857bd","6fa310e475466f0115dd6b7ba199f23e915f2a513e2610274356ac5bd367e940"]
Anchored: 2026-10-14
Public log entry: search.sigstore.dev, log index 3248278454 · entry 108e9186e8c5677af67c…
Expected log hash: 4dfbbd25ce402c4821f7e2d50b18e091e9a30465f45669967c545fb71910f358 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":"v1791948368672","kind":"published-quote","locale":"en","page":"brand:zasta","quote":"Tax returns don't get any better or faster than this.","rating":5,"review_date":"2026-09-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.app","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (81db1abd6b6e…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
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.