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 competent team”
Google Play · 5/5 · 2026-09-17

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 3258201873

Proof data

Record hash (SHA-256): 42c6f4e0951e7dfec74f398267ad90ff6d42c1490811409fd8fd69ddb8955c75
Signature (Ed25519, base64): p9P04tcf9gbFDGBWqUByKDWU0GEnsH6PDwpfYkikGgiao6qNwgVKYRT2WCYwSzKT59IvqE3srLNlAN45yt/8Cg==
Merkle root: 07e2d0de1409df9008c16531abbe2f8515ebe8e55b87a042e18a21958771618d
Merkle path: ["42c660efbef0105edc731bcbfc7f1b9d78a16402fe52b2b48b585aa9257608c2","21079b4319149705cb8a05af221ee4f4b387e612426f59e4ca9a58a9f631b626","a81efc63bdac7d2c8a195756ee7d916eba7b0a368bf28d120f6d260d079d394a","f889fc1c1e55b4b6e34b106e8dbe7d37b61fcc0d52e5c90d7c85977ef7ae1b75","62bb9e0e755fb52e514859acf323d8b03e1f3ed4f02f58192fa739fe46229ad9","ba48be20d9076bda2a8a0105926e1661702b25deacca698dca4b0022c3f2c99b","139f2a5ae0e33b0c7825ef884a775fe6538f3e358b5b7e3702ae27e0353d0a64","4c3f8ffa62a993f14ee3359cdd3d972277dff1bcd951529c4b91b8dc462ca9b1","f4c6d2bac86c996f29a06ba964d961b13cfa8c03963d9e1e5794284b48379aa6","2ae25dab102033e7053bcffd62bebc041e90633b2ef88436d619949045dada5f","3d6a9d4ec784580804def1aaacd86f23c4ee5a425d85c3674ffb4b2756c2ee3e","4d663f5926241f266352195a33380a37df27997d5729c36639e1e95dee72a508","48799695a25196e19e6c0bfac80015199da758df0acb5108e4c517a5d6bc016d","fd7778befb9f979134b4d8a1dfa78827e64c761abd83cab9d5ecd5bc01d8ea14"]
Anchored: 2026-10-15
Public log entry: search.sigstore.dev, log index 3258201873 · entry 108e9186e8c5677ab04f…
Expected log hash: 205b794967d70c4ec2534ff3766e47506acf44c7c68740049459394876120dfa 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":"v1792030899870","kind":"published-quote","locale":"en","page":"brand:zasta","quote":"Super competent team","rating":5,"review_date":"2026-09-17","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 (07e2d0de1409…), 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.