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 was charged TWICE for my premium subscription”

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 3199295725

Proof data

Record hash (SHA-256)

1eac0cce27255353caa271c1cdef5ad004ce4617d550dd7a23169a81fbda8d4a

Signature (Ed25519, base64)

o0SWg2OcDSTCaehOqFZtXjcgZtl05+Uc6wIbhZLfRteF9KKKgrRKky7ciwL849VDPR9zBwNTNHbnb4UDGEjBDw==

Merkle root

cb5472fa7b7f10b7453a4f782a38c5dbb3d782ac291369ed3830c2ab783a230e

Merkle path

["1eaae560e57ac9f20bad3192d75b4154c310a57dfaa92c57ce3ac6ae129d70b7","6cfca0d0129cec590f623473cd938e9f55a1451bb41b4c87234614dd6b82d772","80913dff570ac22c2d9cd23ba67ad95dc5f9bccd57b0209826607c1b82312f32","3838fce2dc518e7c8352916f4a8642e16c6d338e9af352aa61843e48629a3f43","84e9241169f5e540eab6f0d13494f06660b58905f52b7a227301c41d600c7406","f2571573300c6bf25636043456a0bc70724c9f2a1d6cd0f76b0f9971a68d29f3","1342ba3edc028a7e83395ea7d70c448f51486a3a08c5495f430284125d49601e","ebdf2c7b27183b7d09028aa0c9f237a0733c84a8596f8daf46b4829a2edbcd83","ca6bc03a1752aacab09dcef6a49f10877453c2620f3804f47239c69e925776df","0ff83d6c8422d2fabef172bc0bed2461c536946c06f2f535dccb0e581cf89989","11e9097331bc857239ac2499b714bed271799a50a561a79619dc3bfa39226b52","00bde2dc86f5cdfda03d921fbc10cb6775a4a59f43762c9de3e415a772960ad7","67ef19118472e8cea8d8f9c7960df416625b46d91fef63f2cb0306cda5833746","6ab0f07aea38f551fb6ed4456f21bf7c468ab54859dff87b6772a51601755f64"]

Anchored

2026-10-11

Public log entry

search.sigstore.dev, log index 3199295725 · entry 108e9186e8c5677a3fc5…

Expected log hash

59b8cd8284c909c35d85f443b6a086d482f8b667c56ec942d663937a75e25638 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":"v1791689736846","kind":"published-quote","locale":"en","page":"brand:spotify","quote":"I was charged TWICE for my premium subscription","rating":1,"review_date":"2026-09-20","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.spotify.music","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (cb5472fa7b7f…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. 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.