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.

“It downloads songs quickly.”
Google Play · 5/5 · 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 3177778280

Proof data

Record hash (SHA-256): 533ea0ed2464c5032a60706d06ac3f8e0ce0f25be279b9a57db9e619c1cc77d0
Signature (Ed25519, base64): 5zj8nEYgDB6mArIFbMHIlt2G8W+Y4UT1Gnk/SWU0KU3G9OfS05vux5UhiN6I/RsiHtrvycotl2OlfmTYwQAlCw==
Merkle root: 9bf5e8bc71b8f6d2ce627972b9fb81fedd792f7b02f32eb60fb8da440673ef59
Merkle path: ["5339542574bbab349cfa066659c0bca669a93038d478f6896755dd3c044a1522","36669c4572eca6adeed427e26ec5737c4929c3d7536c6c19255627ba6e94adcb","661b7137bc487aa939ba62319ae857f72e7a85369d23acf5084ce016de87227a","fd54853f6cf671bd20cb562f808ba91c43c2e7f22b421421645535384441b595","0a424b4956352998cdfad8c15fe77e5bb0e6fdc06b484f42386340225375a705","6eb7efe0d4ca9fe28997926ed824c646ab7090d870a79c833c56faf752d54833","2aeb022ed5b231c28ca6b081f5f75d191978cfd232c218059c052f14c3830bf3","425805a9be893765238416df6480e2b662d8ba8f995e617f9b0a236d759c9bec","8d1c8deb6f30bd6bc6939c17a463cb7649f3d6542c4501dfbef9038284737406","7fb86e5cf379256cc4d3a7d66a15af74794d695f7ee407c123fe46eb1a658fb3","ec980067b94e9da219a893203cd70a02b684b2c50993ec35d28c6d267ee66aa4","84a3ea84a76b68cb3512dc355ad00571c48363e09edb14e5215f05ad73c22cdd","cce5dd64a2ee4e7e0efff191fbfc9c0d6e8d177df971a1ab32c2db3f02c436f7","09f662acb98b118c251b87092b3ab5baf38f48e2410961a49013a1c2f63f4cf6","1fa7003be7676d7952d939a45bc47245b2ced828dca06428675c885e312c802e"]
Anchored: 2026-10-10
Public log entry: search.sigstore.dev, log index 3177778280 · entry 108e9186e8c5677a59b6…
Expected log hash: 6b6bda8efa0d998f344024bc1a70908bd21604d8857c81e0a6e6c5b1de7aa565 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":"v1791603230890","kind":"published-quote","locale":"en","page":"brand:spotify","quote":"It downloads songs quickly.","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

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 (9bf5e8bc71b8…), 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.