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 ist außergewöhnlich, besonders in der kostenpflichtigen Version.”

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 3240367269

Proof data

Record hash (SHA-256)

3901d4161d72a690bb371013b9e4594589b25cf1d98c63cbaf42764f493ed1d9

Signature (Ed25519, base64)

xyW+86he6XPlDxhj6Z+bgBL65jvPKXkyCYkQ5IBIXsGkfV8sVMutEXXzez1bH63EExh5MK2C+B5NbAEbPF57Cg==

Merkle root

1da6cf8d96c8876e66e82e9bea7529c76d7e25eda1c07550505caa1baa49c4d1

Merkle path

["39034e8b413ae270a6cb979b833556391e080b796d157b1a350f66a8707dc2ef","858b3e8fd51cb79f5118d35f97ba713bc126501987bd733a1149ab7bd1e43e6c","08489349f67246d3e21f87131694158827ddb1322d78607e249679adaa1af7c8","8c5072014d3325bff3118738de0b776f8b634f1fd46f0d0e7db4821e9b559381","e118fffd6f4768d81d74085383f70cef04b9a1ccc0d370d4c28aef9c0e445c4a","5d779991917e809b67b17975e144b3a7a5b9c70f0148882844e838023586c32c","5c9f8c789c03d8c828046c6d20759414a4428cea989252a80aac1eba3168547f","c851a94eddae98dd5922c9c7b49bc9e951ec937ca6b42a151db05b10021f7ebd","265c843f773d76dc4ff57dd435775f6227adedd6ea688db3b98d45a1ffe31342","10220bd977867961d6aeca8e82bf8dbb5c5e1ff90038abe6a1817aa962e566f9","dfc09c55fdd73fd9afc70e4a018b52e543445810cca0a8f4cc14655c40e09b22","994e6d7ea103100577c4cab0d6712d9ad97559bd32eecc5785d3b2bf668cc0eb","d0886e619546ab8e630cf9041b21d39a146861d5b7598b5044808c3537212a80","2d81003ff1cd2149e42eace973cb0f4cdd39b653f7b06a20804a1f1025023ebf"]

Anchored

2026-10-13

Public log entry

search.sigstore.dev, log index 3240367269 · entry 108e9186e8c5677acf8a…

Expected log hash

f6397ecd2b8639a3c60345d0c567eb602411c7eb1bead248c760bae850816087 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":"v1791861381931","kind":"published-quote","locale":"de","page":"brand:spotify","quote":"Spotify ist außergewöhnlich, besonders in der kostenpflichtigen Version.","rating":5,"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 (1da6cf8d96c8…), 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.