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.

“überrascht mit überragender Audioqualität”

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 3162173160

Proof data

Record hash (SHA-256)

5ca09724c91b26560a449ba7dd2bcbcf1c14f7b7501217ff0e503b19dc25fa45

Signature (Ed25519, base64)

gFFFcCBhFB7BbJAaJyZG3EPvMRVpg6erY6YwXkGtBuOShVou6Uv+jH+gEDB24bV2UqH2JMUqoqA0l5Z2cZzzAA==

Merkle root

47aef0bbc5d347d2f064428fd7eda9e99f7cea2d49004267bc87db0e45c42023

Merkle path

["5c9dbc0fedddca96cf14196ea5ebd0d1ff2c9063a8ff2224721f038e6db84b49","2be870a705b108de670b88737d8268fb37038a2ff92c0d9a2fce2c0ffa3a565c","7ebabad77acaaf7afac1242dfd0e3b5211bf11f66aa5eb365aef02b482a244ec","c1f8d256cbc83f6a7008bcc6f1f5e65d935b23ebf7103ff89ecca03dd2ce7bac","ba8b1bdfdfa720339cf905e24966dcb6a9d6aa52b94f2ecf78728e79a473f814","adee2c52ad16df6ddabd6b2fef8609d199a9bcc649e370056c097078b3d75a06","498ecdf37caec0a86cf4d982083500c82002a40bd468953301ffebf2c8b8e001","1446f2328e601f2c0b192c29bb0cd2e71acd76e2f36f761fad9c73ba76e9d63f","4eeeea9dcc780773f3eea875e8c06474ab00376b05b23ac547cc057a829e8424","04b6c24aea93f401862e4268d8e3eacb57d88af9f08f2c7abd98123c22713eb2","5ba22509bdce270ee0434c9b80dd7b39451f89f309e5d27bf74b76d6543bb469","fc59a99ecd8e45f7a4edce8bb3645315ffa61f5b16e71389405bf26368007a16","b965f789d81d31108e28cb7456c86198eef687ef99496f7aa54fa323ddf26edb","0889ae3150c7685b34e529b715a23984c1ad15ae15f158815b083df85c4c26d0","681b858a978b3dea64df3700a937a058d6290a8e519185bef8ee7388d7739dda"]

Anchored

2026-10-09

Public log entry

search.sigstore.dev, log index 3162173160 · entry 108e9186e8c5677aaa5c…

Expected log hash

00d82a97e8d5da8f3bb4a78d598390d6b030eb8338f0e0735ffde6aa5047ae68 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":"v1791539060014","kind":"published-quote","locale":"de","page":"brand:deezer","quote":"überrascht mit überragender Audioqualität","rating":5,"review_date":"2026-08-27","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=deezer.android.app","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 (47aef0bbc5d3…), 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.