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.

“Kaum Werbung”
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 3199295725

Proof data

Record hash (SHA-256): 1b95733e5d033f50b0fbefd2cc1053d96c95bd156fed20b45d060c7503b84218
Signature (Ed25519, base64): z0bT21xCVHRpjbgA6vhMCTPuoaRl8KE8MKiYc6v+clCKWLWZcCnU69KfKRppXZKuDeWZNw0c1e86K0reTappCQ==
Merkle root: cb5472fa7b7f10b7453a4f782a38c5dbb3d782ac291369ed3830c2ab783a230e
Merkle path: ["1b9bb8dfc202cdd6db1074bf515b01aa0d411f4edb8c5a7f35a31a889b9b404f","bd61e99aa2859fe510f4876836ebbf6d5f721d733635401f85aff8f4b7aa6741","29868748bcdf46eb2988fcadd25a6361421f6a249c0814f2e98923a2cee9a036","4cccae9ad6d6fa147e22b997270d8c53a77b8e7548f5e51f4c2290070c09a65b","0e2a7b28147ac1f22e739771177f4ba5ac2d7896c7d249d41273f31c354c26d8","0d32209a0d10d3323c9f2aba07a9a36cb1bf61a98a90f54832d305bbded10975","7c854de42d799d142b01c9f334021c5ea75386d63c4faa3942b0de0e312a0c83","165c060c52e96e58edb7c209ad87d2cbc4b36c015e4e606d78570a6573104af7","5e4b248e270ad6a69a18f522240754daaf91d937d6bc950a193bc7b125fa2e9c","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":"Kaum Werbung","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 (cb5472fa7b7f…), 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.