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.

“It downloads songs quickly.”
Google Play · 5/5 · 2026-09-19

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 3221102617

Proof data

Record hash (SHA-256): 3da1b62dc1a43b6ba1eb60c89941bb8a82df06d82e38f2c1a37b9f24d7bee3f9
Signature (Ed25519, base64): 0aSGXyRmJYzjgk8YMluPuY18mbUbIYH0y/+ixiSfKshNmKZXAt2Jq0aXmat4Gmn0x0oGjm5sFbBReFATGV2sAw==
Merkle root: 0eabe705d05480191badde562bf975cad5c107b96758d59c47efce7f02d55f90
Merkle path: ["3da9949cb2076e3cac80da23f3d7717c7469f687e9eeb2a9fc0688d8e33fd1fa","0600caa261b2fff4e51058dfb6551ad0c2ec08d80f0605035f5c82dd794b65a5","d67d0d93be1608b64aaecde7c64525d9809921da5d3abc5df920a04be26d5c96","dfa4601fd59e9d09d9982ca4a31791a9f59379ac887890d82e33fe30db32655b","ead1eea32089b8934b08a8345fd2561f1e95371ea76a6b24a06356f9057e2617","d640bc6e52c3d46cb498fff19e8dc7b2240abfeaaf6d57512f5502a5bece15c6","64827078f93fa0f906a73c69d38b637f57c239107ed704f18b8386bd6f3aee8d","46d34ffeb6f2cd71881e22b6a9960c21d7b0abf620d784ae6c0a7a838964b242","c329089dfb34954a5c6bbe8534fc31801788c56557b2a5982c5476298944e8e7","82d2587b8a570533341e1c4045dfa16e5ef2799ef62b7f42cb1697e039cadcb2","d282ec3734e9efb12bd09b6d86878bc99f5241c97244e015c9c823b91440c734","810c5cb82398d2660a6533f18336c7279d089f0fdf61010926aef1cd4f72e8fd","77b2b0d1c988b3add7b1fbedc3ecc12dd0cda6044be7bb06798825ccc94efd81","2e4cbc8181996227b6c5ce6cb00a4128780f0a2cf8618660b840716e64b4286b"]
Anchored: 2026-10-12
Public log entry: search.sigstore.dev, log index 3221102617 · entry 108e9186e8c5677a7ec1…
Expected log hash: 701a9a476cb781c93a6209c8572d258b6cbf70f6f15d478bab1da1537af9506b 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":"v1791779915538","kind":"published-quote","locale":"en","page":"brand:spotify","quote":"It downloads songs quickly.","rating":5,"review_date":"2026-09-19","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 (0eabe705d054…), 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.