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.

“I suggest reducing the ads.”
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 3220367991

Proof data

Record hash (SHA-256): 406f055eb8bbed969e4a511e9a6c926cba5ccc2916cd1c3e834cb3462a489b63
Signature (Ed25519, base64): vnBJDbnpKtLdv1UjGg0ZmZmG+lPq37Dnsf7DfX7uv1zl44jfKE3YQLqwTtPLWqAyo1Umh2qCS0DiVdbeYDMBDA==
Merkle root: 8e481f891fa4a8f9e77c0279ca152fab4383b65a50decc840d9fd7569bdfbaa3
Merkle path: ["406a948f43b46aed7b429e9b1635d0e92ddb0f5362af7ea7ec6180d6b7ecc02b","abff6f56a65449bf02e39ef2169b4ca4bb449e03b777f3cc7aba1988d30f26ba","f3b9bd23dd79035973effc1dbd4fd4fcfc190577e0b662dd3ccc939ceac4c657","c2189f6041f99b52802d5bc5c796eb0780821473121e2655fb8aa94398efb007","9a5d43be9cbf549df7894d32f2121c8959110c22a1d99e61b35a1894bccccac2","d8e5741309100f5b59e3886fee51151899865ea91f3e67dc00346e4aeb248072","66f04fa2d7b75a5cb98f28de1487646ee6354051fcb3c7f77c5e20521844cbfe","285633759d8a9a8ad2d0ad5b5acba431102bc5a934c3ca34b1e1782490682f8a","b3b206b427a0c480a52054ddbd4eb772bab072cb01100345b5409414acc7830e","5c492fd0267abc6dc11f9f07b6729fe2355f5e535baa1d3012b7f3779845c9f1","19729ab4ee834af8b30994fc038b14e05f47d8c538ac4e3ff36845f3cbd9e938","a7aabdc256e01976bf56aedd2750701f155d95355e126564b57f87590d7c57d7","f12c6d940ab3feb9a920f8708be9c7f52b5aa4637463f6ea0927f2330e210f4f","391099ea13ca712ab4d3c0ebed9ae37f021122ce33d031a4f3442fcba2038ec0"]
Anchored: 2026-10-12
Public log entry: search.sigstore.dev, log index 3220367991 · entry 108e9186e8c5677a60ce…
Expected log hash: 9a2b3ddad9c3b29dc171a15554fc81f3d4710c01a7565bd2f28b92e7b639f6dd 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":"v1791776812348","kind":"published-quote","locale":"en","page":"brand:spotify","quote":"I suggest reducing the ads.","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 (8e481f891fa4…), 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.