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.

“für 17 Franken im Monat ist es schon sehr viel”
Google Play · 5/5 · 2026-10-08

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 3163352270

Proof data

Record hash (SHA-256): 15c93c55811c576cc88175ab7b29460f9743ab7fed62f2a59288d4dbba5218b2
Signature (Ed25519, base64): j1McAqWFvW9QH0hdDNxos/05mY9ko9V3RFShxggaNLPiIZP+hfdDh1FbZbV4vctMITOh8JUtCwZZMFIg51AeBQ==
Merkle root: 784ff8fc3c42eac43c7d399f0d67bba55d28073a7e106789ae0c6c3f5ac9dcc8
Merkle path: ["15cf212bfecebd96a1c4db3c8b81e005c7e95029d779f1fd1a9b15d44e74abd0","825a28f4bcbdfc8071910c0ace061d650e16d078d80ea660a17bb626de9b80fc","48e260babc5efdb056b6fc97558f2f2880f6497e70d828b7f0458e7275551105","999c51dbc8acdc2f7a8e848a8af3f339be883d49e09d35b1313b795d16f6f087","766e96e1be951d0f43ab1efbf92b7c753f1c013478be126ce28aff3ce61d8aa1","42c5e2352b10158e6c73ea4e1f2341722d5e4149da9492527b4783afb251e6b4","31de170bcffe78e6d99f0da67c1a907f6c3549237621a8308606cbfbc792a3ad","f86dcbe39e762b46340520e370b839708df61430d756b06ec904d22e278b1974","dc9ed8d65d075f76523c114c3e44dde94774556008074fedf50c6b5845169e3e","691b1f21ed2e5643c25969b78bd3dea433c98b87ab0a88540c0c94cfbd35356a","5a147de9481e7ec083fa4c1f4e0b6896526eb1194c33414f67c0082d0b6e4f0b","c72ebe563668e58eb29ee8ae3c5ee657adf2e41ca1680bda1301b8bc24ffd5cd","b2e795b1a28ca13f7663ed8f62127f0cc32efbf6296671f3d7800b760642c1e7","7c65cdc9460755a327943aea2ce97e2f5c6080d778d9434fe2dafbfbc1e3b04c","5fa09e3847513934bffaf71960ac2a100e20422698698ab1e19a4fe8ac133514"]
Anchored: 2026-10-09
Public log entry: search.sigstore.dev, log index 3163352270 · entry 108e9186e8c5677ad020…
Expected log hash: a3ae0badac804d14d314abd0e71726d06a96c43a3840dc1d63acded9268c461e 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":"v1791543790412","kind":"published-quote","locale":"de","page":"brand:spotify","quote":"für 17 Franken im Monat ist es schon sehr viel","rating":5,"review_date":"2026-10-08","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 (784ff8fc3c42…), 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.