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.

“One song, then four new ads.”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
418170e07b70bc053a31d1aeacdf0da97aec4b97152da16952e4e3b0caed897c
Signature (Ed25519, base64)
owGN0ru4Ev6FTXojaEh6cqtpvcCIh701QuNKAmcsP0qFt+Fe1UIUAaFDJzy8uky6AKdCdN/ul2hQ0dQpZeqmDA==
Merkle root
f26292e960b34f73f9768b4afc64585e265549d794b35b8167826c2bcda92ef5
Merkle path
["4181b440faa6514ed3e5f5c25f159145d493bad9d6807b36e35dbe4589fa7fe1","99a8e1e43cd1036862c6ceb89c947651b9815fdeb8b683f1197d7700690598ba","b56cd15d5588bb49bd7da11b81ac5ab6eaeb8e28d8476f252e3b75b43934cbaf","8b8aff0f9bdba51a87b924b1f0f250395985a54f57cc5a17d7fc7e8b034a257a","5182006acc80d8220537f8c19166497756c905188f561c0c3133f32c1a7efab1","223104cfda04c30b7f1c303d9af68e3e60a1df29f46e0c8341188d5c5df91da9","a4e034fb3902eae37a5b9e2da761f99942c916429c17da7ebaa50e673bb450dc","5868ab8c6efef966be122949ccce3d99cb0741237d02d8ddb8b9df7874e64640","59ce9d26220235515e52da5d2f4835bcce209de5082a5cd000c3e19597423011","02176e80647e61bc802ede207012e4368974d11543964fefe71c97e7ee664f33","9897a060bbed2271e97bb8eb861687536edd8ddd161a2cf4e8b399530e445ff6","00a58474486d38878667c018eb810e71180b9858df79c82d171ce5b4f5fcd15f","5ef2d0b70398ea508e6c490819b91bf39069023f910bbf3a50f0ba400757578e","0cf751b4d000491c43eea40a33568458d763987b542601ca0644e491c0b04ce6","e95e880a53b013b49906f2e6b9dcc652726333d77986f48029bb634dc427e2de"]
Anchored
2026-09-23
Public log entry
search.sigstore.dev, log index 2913636507 · entry 108e9186e8c5677aea51…
Expected log hash
417fac9b806377ff48d30ded01faf8424eb98406df713fe2564ee9077747e6a6 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":"v1790070376053","kind":"published-quote","locale":"en","page":"subtheme:spotify/quality/ad-frequency/en","quote":"One song, then four new ads.","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 (f26292e960b3…), 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.