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.

“Sehr, sehr zufrieden mit dieser Musik-App”

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 3240911465

Proof data

Record hash (SHA-256)

26d496d13205caa05d72746b591c851a52fc71c482c9a0a62050914b86789d0e

Signature (Ed25519, base64)

ZnbdTZD9FPGEWnGOLvZD1sVwCRUVbV788OBtLrYVNaAVrIwRMZNed74zhfcE+k4wlzylNIMNjCHh0w2kyfAkAQ==

Merkle root

274a7762154bd166543ff3cdffd566852c7127b7d67c5c835965884725fa5b5a

Merkle path

["26da3c3a0bb52dcba01efdaee2e421251f7dcf0e4bfba4271b47bc682af5e9bb","a6fecbdcbbfc0e4f0922195e79369bc2a1bcafba6b79ab0379371532070a3e8d","323419ec9f31062dcb455680f51ca6b7617df162bbef3a61f1695462056bebff","5391db49c12ce4f0206d6b7ed2d2aaabe6832970b4238f22c7f95c98a7baa4aa","84190a6c8c636353a1ac7b79d6c29ec13cf50d9ac66a8cf14f39e62fb61d784f","2bf652d4c1216d7d90dc45ffc0d5fd8de1187db4d0ceec48acad529cfc532a50","ef8a0bf437e5b06aeb15fa90652798402cb697eb942cbfc8323658b3abd4a279","95451927a03249ce0ee3adf78b6d165d28f317b2c8f00fabe99892f6560492fd","e7177ac598037ffaa27384480daff8709e2a8464341b1cc4cd6bf222418e0df5","b8c7c0012516055bd13edaade4615fc0b2ef47fe2e3ed709ee2fde662cfca8e3","f4790315b45ac3d162447d1e34229640be176d595829cbcd3965f0a5a25ce744","a23f8c34fe7234d1604529397f0f25595125771d2c3bf2e0ea04339b7ae798ca","37e0bacf6aea102741ccf02dcd42b0de6a02c60397ad417aaaf9cff69daaf006","29e5b66d9f235b4df92caf0fbc75cded7863ab76bbe1924bd45c3ed8fea27123"]

Anchored

2026-10-13

Public log entry

search.sigstore.dev, log index 3240911465 · entry 108e9186e8c5677a3a8f…

Expected log hash

75e63ac56a22d308ee68ec8d436777d2fa26c934f80384e53bcc94d01475e988 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":"v1791863907329","kind":"published-quote","locale":"de","page":"brand:deezer","quote":"Sehr, sehr zufrieden mit dieser Musik-App","rating":5,"review_date":"2026-08-25","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 (274a7762154b…), 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.