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.

“Very good because I can go back.”
Google Play · 5/5 · 2026-09-16

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): 35616ff956c305f0b87e2b0a06794f5dd20163b83e9ed40794e1df958f474acc
Signature (Ed25519, base64): k5v7Kkf5GEpEfUCwIvG2mIcxmC5aYimUY51NvXcLgPQqV3rI3PW3nR3WkKsMimIBomyYQkwcgC/1vELJEQRSAw==
Merkle root: 81db1abd6b6e636da393518bb64e907fa9c48581b44ac2be5a9e74d02608e451
Merkle path: ["355a19b2e794e766388117d9a60a2b07127ba312732b88ad477e64a68b0dc53e","172b77e90997688b578cfecfbe76a8bbb6629aa3af95fbf9b5492f8efb223a05","98ba1b38ad755a25621b1e9d705539d75c1cd9689c38af237aa42c5ca92e3aff","8299cbabb73eba9d21ed8d070ea792e092c85a3cf7cc6990ccdb578065c261e4","9b1153c3bc483df2b92cb2fa898ea667dbb15612f13adafb239198a4577a51fe","b8f4e50ef34cbd6497b011b5189a57df4cac74071998cfe720ef3dc144426bea","78061128bb124d18c22b86cb9564c279f8adf85b29664d60a06d50c144a091f1","49a41972634689c0d88ddb40cc20032213aeb1b36300372b3abf83e551592c98","bdb1c291e2a265b57b546bfc93187b8d2334c0c96246beb8306b2eb66ed0a103","6238ec3c9b6abace92aa62b27c2f2310a43d44abc042a412f7ca82c4d789f9f3","4c89d2c3acb11018b90e95114ad50130d3b070bb6755f880c1172b93924d4a54","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:spotify","quote":"Very good because I can go back.","rating":5,"review_date":"2026-09-16","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.spotify.music","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.