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.

“2-3 ads even start for every song, ridiculous!”
Google Play · 1/5 · 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 3163461995

Proof data

Record hash (SHA-256): 49420133f4cd66b864af1e26ad36b9db58b1e27cc59ed0ba47aa43994c2016a7
Signature (Ed25519, base64): sZmvDr0e8q2wkEgmzCb3z7baiDdWZniplmM5ziQrx4QaOZdN2EUz3g2orZH2icPZ6aIZa4ejLFn0Hx9kJgJKCQ==
Merkle root: f2dea3193623a59d18b4d230cf1484689c024b05d34648a4bedfef78c47360d2
Merkle path: ["49436ab83fedd24f541b2e5942ea1e395567818cd63bdf2d079592174a529893","90ddd64d4ad3cbbc37cac0826241d01036b9d6d4c033141b4550b970c118bff4","376e3f699f007727292080dc9d0db14fbdabd8861fe7876ab3ce9bd77bbf05f1","4656bdcd7dd2334af1d0855def806aaed2b17a455fd8bd646b2b079dd8b5d3ee","9ac310b8a123aa91dee37f4a6ed78b45633e7c3a701a612ba6e28b2739e5cdb8","93984d30bc800f44cf16c9bfb4ceb82f249dceef9b875ff8c52345d7570c29f1","9b8b95e8fa7aaa5bc8c85b322fbfda3d139cf42eed3f8eb13565e90a6b237d36","07ff90670f71700fdbdb7e1a4c57711368cd4987d199c90280ed348b2f22323f","1d4e68559fc4ee48488375f8b3dfe4c3900726bb772e84be843dc15f911c57d1","e1636c49cb1720e5b45133fda0780e6d625416569b0d1886eda4f4ba81c1a491","261d781e258e79862c5408e08b0ce6a6afc92316fc620941d4bfa01bc01f23db","715d236235ab3fbaf6a917957cdd41b2f2237b3d300a52165824ec6ae8022bf0","0e0575856f98ffd7554131441cee6df44050461e83f56abb9d48db09201782da","c3040d35b4a41a3d91fd7f6d8e1e6868620c896bd0ae8d09b1351d70693bef08","658fda4333b0a975ae51c0ef52c37c157029d897878579fb5ff3ac48198b1bf3"]
Anchored: 2026-10-09
Public log entry: search.sigstore.dev, log index 3163461995 · entry 108e9186e8c5677acea0…
Expected log hash: 1e385e1035f15f3dbe860bb8f3e4e850b8c2ce2b31edb58c97be626995a4adf2 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":"v1791544610158","kind":"published-quote","locale":"en","page":"brand:spotify","quote":"2-3 ads even start for every song, ridiculous!","rating":1,"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 (f2dea3193623…), 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.