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 3140627354

Proof data

Record hash (SHA-256)

1c1780606b809595871dbcf43f5be27bd0b2b96520d0e1a6508619d5265b9792

Signature (Ed25519, base64)

DIowQemiPLfEJpGwUwn19JoHGwCS7ebRGHkQr80XsqJMEVC2b2NUTY22upeAzI9HMNV9zeh4a+z/CUQWdigkDQ==

Merkle root

7e5597bd3c162c8b6d828ec7450367f642ce11ee386de414b88376dcbb621ae5

Merkle path

["1c1b61f4eda231561ded646eb81cb94d58eda7f25a528fee8def48890191137b","4d86e229c6ad3742610f6a021890dcd442d0c66621cdbb10d5b64672eb01c171","ba8050f30e73a374c7afc568b5f5af6a2603610f2e114ad0986f8d580ddc2af7","7cf08e6ee59b787d9578064fda1e3066b43fa429c2c99a4949b78a3a3685e097","432cb4feed005ca8470edd474b277640153b443de7a1ee089775285a8184626e","1f1e763890c234c430a02c58410c7403b39ab2f21ff7f7e4ef870d6a02e766be","3d3f025a3210a96ebe04fc25ebe52debf47703ba250fc235f56732eb7013e30b","08a5380c565bf79f452a1912cdb61f1a5b925a99d9db0a3604c4bba5806602c6","beee524a360b2c5ab96b6f9a65ef229dd7000ebd487077700dff67134c3bbcd4","5970b0bb66008604e9c5b86e0c5cfb3134c36093a5acc73161cf13d39df96a75","0b71da72fe59434f42daf4ab92d214a594ce055cd56866860877e34bb19d1037","9b9b471ab743c8d0f3bc63bad64ff640426ae2e472509575c6ea817aa7984221","792fea8d115ac482e9fef70a7069e557f2efb1af634e94e47f08bdc3862e5a6a","acb249623400215550cc0881339acc244e91fde1fa89bf36124dd51a7bead968","76edfaff3d5907039be8c493f114c2f6ba10fbab7705dc7ab77a269ec79893bc"]

Anchored

2026-10-08

Public log entry

search.sigstore.dev, log index 3140627354 · entry 108e9186e8c5677acc98…

Expected log hash

82c9bd063e624267c60865e2416c3d714724e2c3b18c4773424cdf17232dd6f1 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":"v1791432333296","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 (7e5597bd3c16…), 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.