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.

“Die Audioqualität ist exzellent.”
Google Play · 5/5 · 2026-09-01

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 2913636507

Proof data

Record hash (SHA-256): 85a5c9b2517cec9de490fd858a2b638bc5b5e93029139191ca12e99b8b192d50
Signature (Ed25519, base64): TGYOgXdcIe6ararIO62YAn241JCpXQvBXdrFll596Ms+Mb3G4ID5LVNlFGQZIsS457U568eHqgTQmE1p2ctxAQ==
Merkle root: f26292e960b34f73f9768b4afc64585e265549d794b35b8167826c2bcda92ef5
Merkle path: ["85a25a474c04ccc51e478686e4b883963635fe03b3f5cbb5fcb0d15ebcc87d57","76ade7cbb776772d855efa6dd38fb24f1411bb7d561bfee3bc241d632a5a932e","a67789137c8a2ef82e3132b940a5bb5f418b50bdf63bbf9a82bda48d42a0dcb9","062f440ed105b7678e8e95cfd718b535b2c84c239666ea5db2d02eadaf23b406","60bd36cff63a31b89136ccf42f6dc51b50a77dbafa963a2a51dedc99adfb122a","90bf52a49ba3188371afd8e8a0a334834feb84e8ae37176556fff5237b2faaf2","2702d13d74927f2eea8870c03f09b0384fdf7e67051ee461c89329d5f49bd0a8","3faeb17af2140a65ec7963bb39d88a5031ffffc46a03458fdb177c8f4fc172d8","cf7225f7223f9f530d8cc9400dbe0f2226b27dea4f7c11aed02fcc6a28fbe1e8","4ea30299ce2ee6b7baac947ce70fbb29aebea24299fdcc6c30c7f15450a6ff84","1054efdfb2115116a8e068119ec2ad28cc3b6a59dde338587abe3eda58fb6cfc","9a9aacd96a1ac53199b2b5828545bdd6abac29af29da6dc5f9cc3106d65b75ac","ff839efe243c09faa45172bad7cb61d9b7e0949040c580ec02a160cb61e2c279","7a8821e5f39bd89945ecf080ecd049c93644614124901c8b74f26df2e34d9289","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":"de","page":"subtheme:deezer/quality/streaming-performance/de","quote":"Die Audioqualität ist exzellent.","rating":5,"review_date":"2026-09-01","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=deezer.android.app","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 (f26292e960b3…), 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.