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.

“Sehr einfach abzuspielen.”
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 3241084060

Proof data

Record hash (SHA-256): 18c678794c79fac4da30ab47ba8d146fbb79ba211af88aeea21bcb0212dcadd0
Signature (Ed25519, base64): 91NkmTcyglCMMISSntsN5r5xZ5mPKDS26ug9PSxjojZgHoD2elkzsHYWLmYHo4IYg4LWJ9UjKfv5sUSZzWZWAA==
Merkle root: 0b0c0499033d3f9b3953d31e6c838f88f12988dba810dd4de44922e1b60fcdf6
Merkle path: ["18c86a21359f530efadc31111717622ca9a5b44287c7326874c4ed2386a87e99","5316de9b0be274a782d1201ffd2406f271f389d4f1479ebce55e0149ace3ad15","319242e8cafd874d801f85b68c137aea9b1ab7e2fe4d2ed628ac73d721c8f299","9e0ca807b9b9df3ea34ca486898eace5aa8729ae60ca995d3ee63c3f6f79ea90","5c62aeedc11c9a9eb10f05a2852f40ecf896536f263549831ed8076495331c83","e6d36a696f1255dee00f42333a0b5bfcf71f47075b0d3a630be7f7e6eb683773","12c9b6380457ebb21e159e20bae274b73e29c3c7907269379a17b1215f46c514","d12d4615d5cd3840b1fb16c6d9209b1d1793bfda2c0bae49f2faf4990706fcc4","0b1fa50384e01bb94bc1df49e21512b1c7f48fdce160c205e471be24b501b6e5","ef1d89253fc65afadac230062761b4cb25b111a12d29d09a6773aafa6c6725b4","97bb581f373ac1585fd287a96ec92f37e16a17e7e09f4b197ef739b8fa5c9cc2","fd4caa7c5bda5b821309f24a41bde8275c1fa51be2629af50c760cc53c258d5e","fe7751fa4b9a0ad43fe0710628b6cb1b92e12eb8a60d9f17eb0c0764d693577a","8a05b9e19287b30c7fb54816a1fb848939f3f2c84b9825f19f342683d5db13aa"]
Anchored: 2026-10-13
Public log entry: search.sigstore.dev, log index 3241084060 · entry 108e9186e8c5677a3e82…
Expected log hash: a291e2473f1a4510a666e020d4d424e463d55bf4677b91eb5a52e446e5ff1581 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":"v1791865115768","kind":"published-quote","locale":"de","page":"brand:spotify","quote":"Sehr einfach abzuspielen.","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

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 (0b0c0499033d…), 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.