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.

“Spotify is one of the most popular and widely used music apps today.”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
45a7b63a7d9436e1638ce5093f95624e79dec8c0fb86499cae6e4e5bca9139ed
Signature (Ed25519, base64)
1CFsksT/BtUybPS+C8cWXp9lJCZoTtPfkYxVH7Lo+1VoszEPuOoAU7L6w/4uasXCzwet4b8cPpoVopePJrjfDg==
Merkle root
f26292e960b34f73f9768b4afc64585e265549d794b35b8167826c2bcda92ef5
Merkle path
["45a7267c03863bfc35590b274da8edacde788775e358e9028e4f9bcddb806bb9","98fe9466b50529e8354bbad0662c1bcd6b41be769a67fad85438216398397035","cc68d058c400d1b85aec84aee356a26bc44a397a5248377eb85afc04a3f041af","fad7cfc1eda89276129c246ceb2ffe28cf28e19762c04e397bf9c0b266f39aff","db2c5e4556cf3dd19d5117ede17f9d578f2e2f5ed86787db14d9bf1996b170aa","1d420aebc6d0c8156e9275e9ceb33080b2ebade380f4d92c7792cea15d1c3354","b946ca4855de14a10cee79eb78b57a68ad10affdb722b8acde4851718beba8a7","f38670848cb078f3739cf9a0948d3dd6561c168d066336c76b3068f3dc2ed65d","1cc3655da5e57cdd5705f633b03cf34f934709582098342a6713551dd4c313af","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":"theme:spotify/delivery/en","quote":"Spotify is one of the most popular and widely used music apps today.","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

  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.