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.

“Riesiger Katalog”
Google Play · 5/5 · 2026-09-20

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): 707b76c98b7dd0e0634a46d03890ce8826abe8c33f4f50d8427164e242104262
Signature (Ed25519, base64): cgp2X21I3S1rnk0w0KDHv3yCDclQEFYznTs4WYCLnjRxYv+eYrbc2GBqaMrkhOBtU29RyMNblvfLD3cCrKEeDg==
Merkle root: f26292e960b34f73f9768b4afc64585e265549d794b35b8167826c2bcda92ef5
Merkle path: ["707f531c6469c146b828e4719ea276c4d38e50a5bcf3b6b3a034f7379427a9cb","4d8f5e57762185b7e5b1454e1ff1015bb32c1ffa5a944c1bb3abb266066bc05e","92cef534173668d23a46638e041188046d8744845ae1baf7d1d472ef77ae370d","aac9c23ef4a926c75c29a35397df9b2dec17a9d1bf07cf2300bb9f7491f436a2","bb35f5ec46edcc452fdb41bab5e658d4ae6aeb615a28f3062edfb684d693a401","b90769e7e5c459008d05c83f4a5ad4c88875caaceeb713ba4cd96008d8f35c36","d4dee9c4c9472e554b786f0977dfca0904ea5b51f28a0fa17447a50fbdd3b3ec","3b5511e572cb1931ac43095296f12014ac3a88c09ed921c543f46de6362e7f4b","448baad8438ae9c210c0d5150a9ea4ed10ae32871ca83dfed528ac3ef7fdb2a0","73fe5b42bcfb85633ee74393f5fe61aa568a5825612ff1355d1b4ae3b342feb1","3904f8e665a3c2c1eed93f9ae2927dc451ad4ccc79bdbaf30e49ad70f3b88bfc","fa18470c35f7f7bd1895912f69375d26e4d5988a8c583c5aaeda8d2efc824814","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":"Riesiger Katalog","rating":5,"review_date":"2026-09-20","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.