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.

“überrascht mit überragender Audioqualität”

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)

c4852bf28a7f9874047685844f2b41a4203c9983fba83ea19dd9c319afb37995

Signature (Ed25519, base64)

yixX2tfCU652TP1aIqeY0gzvT7gztEKuVx138xH2uY2MfntX3/eHadwa/V+fMkTHWEjU1aJ0Iy8a7iUhruQrDA==

Merkle root

f26292e960b34f73f9768b4afc64585e265549d794b35b8167826c2bcda92ef5

Merkle path

["c485570ccc1e249b3a91f245bbe3a837f26c00b8696b08a16355e5d56de8fe64","eed7b27bc0e9c8b68d9921977fbfae40acd1ce133da35f79bf0356489c10f11c","4767fd01cd097bf0c5beb60412e4f600190594afe75aabcd847e6ae247279bb6","3f411568f3ac9737be278e28968109be2bf62027b64ff070e05b1eb50b6d82ab","91f38349151ab61d932e313bfeba600f652275ff33393ef2aaa98fc5609b75a2","25257fed751bf62293656192deb422c07397104d2298f1e1cbfe492c09bdb353","a648b795f9c176ccfdfe4b49aa91d1e07b0af77f0c6fca9cbc0d603dc84100a9","c2065f33ae10df9adedff363ed0319d1db549c74405aac0c3e95b8bcc310ac5b","c33e7e0ea7e6fbe51d30b6d86ab9d67ca0fdcf9d005b8ad237f0e93f6586002c","800ab42cd73afde0f3af2d9507b1828fc4b7aad3659d3b8493f5cf27edde8bab","722106df6fbbc7aa8e47379a1ed59bc3a92b92a1821e142fefe0367ae74daec4","8f5ec8180fef173ef49bba3555961699c8394cb3b56f59043b48bef17eb12eae","fbc83ea3f323a853561b2d18a7d5d816b1a8631e4674525eac3ed9b0d77501a2","ebe1651655c8b61b6b5364f1f9c2df6d3d2570b884eb1475b1f154f5054feeba","a616224c7837fee9e37cf9dfa53b6dc52945555438d928215ead84ba8ccc7b57"]

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":"theme:deezer/returns/de","quote":"überrascht mit überragender Audioqualität","rating":5,"review_date":"2026-08-27","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=deezer.android.app","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.