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.

“Momentan ein ziemlich gutes Medium zum Musikhören.”

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 3199295725

Proof data

Record hash (SHA-256)

20ed62232343473ccf22e67c3c7d3cb80384534a3ab9533ae5859a7c3a27082e

Signature (Ed25519, base64)

sYqlVwsObi1SeIp7ZiHBIhEhUlRZeyWmq8xiV8U4o7xoVLyAILoY93+NhIYeFa83HbBWaXkALCBs1rQmpz/aBA==

Merkle root

cb5472fa7b7f10b7453a4f782a38c5dbb3d782ac291369ed3830c2ab783a230e

Merkle path

["20ee942d87dcd25359f227bd3f81e2449d9617df18996a77cc3dec5216463baf","65c90ce37afc68f3cae3ce7b88579293856d8a3f0514db609ee514ed797e127a","26acc39b2e99a960ae91a60fbd43c7926c3714374e9265d169a4d0216dd7cc02","fae7767968b2a86ecbb8597600a0b1a73008914ef84965af015c0033c0b776de","573944f2028bd32a380f954c7a7729d676be2883e82939d18a3dfc5434dc997f","f9a052897dcd621e560b69ef4fa8f077faa85c3196a85f024f4b0be693178407","17885a54e973908e677bd3414f940b3af111612eb3e60f45d3238a34f889ffd1","891beeb8d67ba9355c578d1d844d81dd072e1fd470ac0a32c1afc0068ca94bb4","ca6bc03a1752aacab09dcef6a49f10877453c2620f3804f47239c69e925776df","0ff83d6c8422d2fabef172bc0bed2461c536946c06f2f535dccb0e581cf89989","11e9097331bc857239ac2499b714bed271799a50a561a79619dc3bfa39226b52","00bde2dc86f5cdfda03d921fbc10cb6775a4a59f43762c9de3e415a772960ad7","67ef19118472e8cea8d8f9c7960df416625b46d91fef63f2cb0306cda5833746","6ab0f07aea38f551fb6ed4456f21bf7c468ab54859dff87b6772a51601755f64"]

Anchored

2026-10-11

Public log entry

search.sigstore.dev, log index 3199295725 · entry 108e9186e8c5677a3fc5…

Expected log hash

59b8cd8284c909c35d85f443b6a086d482f8b667c56ec942d663937a75e25638 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":"v1791689736846","kind":"published-quote","locale":"de","page":"brand:spotify","quote":"Momentan ein ziemlich gutes Medium zum Musikhören.","rating":3,"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 (cb5472fa7b7f…), 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.