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.

“Der Musikkatalog ist riesig”
Google Play · 5/5 · 2026-09-16

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 3198489507

Proof data

Record hash (SHA-256): 2e86210e523a6c604707c1a9d77b78877ae15b30705622e39ae332ea8cac3cab
Signature (Ed25519, base64): LsRcpcQyZfFaLdqIkYKFoSB2G4zop95QGZC6cRyYiu2SqyBD4RK+NRryrgZ/g5q3Lf1piRrfxWw1nhzW92ynCg==
Merkle root: 240cb93491796b59a812f7182e64c43781541345e454701e4066e1786c286494
Merkle path: ["2e881a7029a0c5fdaec561feb65fe1ccb99401082720e397599237ac2853a933","9dfb89ceded4d6f95d499b8d04cea18eff0e4b444059ea8b0c5e166488efa886","f95d768f8429b3aa745fb5b41fdf4b1e390211d2a641655cb7774ebdcddb47aa","73d04b492fb37f534e4a69104855c8f0225bf3c72cadb95476aa31e029027025","c8b1a7e6795e72c9f7acdc551eaea5b213d331acf54cdd8e11a4afae3e7f0bd9","c1fb44458c870abcff73cebb7640d6ed76d74159de8ecfa3c31ae58566707dbb","b37932023d58f13be819c18005a703d13d295681520b644de3fef19cdc73679e","f340d4f61ee26c73ad7a62a0560f5a0ddf30e9cafee399590d159c74c9646c50","78dd38d5b13793b9eac0511931ec2885d0b19c585427f44ae49b44959aae5876","f29fc0dcbf03fc7ab3504689aaeae750b894690b76af7b77c18cbbeb2534dcbc","5875a01980fab1ed428afb1225d64357cb880ae3126d5a5d3a8e239ccb3e8480","ec9ecaaf6ecd25e70da3b6283bf48b73edd2937bdffac512199306f1e5863dc7","7115b4e40dabe303dca48b39285385aef0729dc23733c818e0f3ca68286a3ee4","0d65160dee55e809fe06e5334fb3150d04f822ce1cb47b2ae30b5d21efdf0eb3"]
Anchored: 2026-10-11
Public log entry: search.sigstore.dev, log index 3198489507 · entry 108e9186e8c5677ae5cf…
Expected log hash: 50393c13ffd4f8ef4c37424a8293b422d8c3ecaf6b9593225e2bb93e0cf2c210 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":"v1791686710415","kind":"published-quote","locale":"de","page":"brand:deezer","quote":"Der Musikkatalog ist riesig","rating":5,"review_date":"2026-09-16","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 (240cb9349179…), 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.