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.

“Die Suchfunktion für Decks ist jetzt hinter einer Bezahlschranke versteckt.”

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 2907673729

Proof data

Record hash (SHA-256)

23c9f9fc3ac96ae59454878da5ca35bdd97c8e3e2bc4000150b747770388dad8

Signature (Ed25519, base64)

yQKbokn+rRoroESOdnUVqCYbx8qUkxsnjiDujUj6T4WFXVm9ukE/tiqTi7EUc5gdb+2Z9em01uhIB6uQSMm9Cw==

Merkle root

b9a08f9d6d76dd148110a496219c42cf3205c6f982800d84d5c85d77e9461e02

Merkle path

["23cc12eb21415432bd083dada5558a86c80d8017a37f8f922554e000b3a89a18","9a91077b4784b039403837d74ed2dc3807a5f11883cf0bff1d6158317db699da","90fbea7734f69732e7b8e4fe4e66c65fd59a811cd36ca547c40b30b99cc7f210","4ede59b89180e44f21ca6355545b5172192824777cb92333b0a5b0e619198913","98fa6a4e06cc2f9597780450088c64d26270629f45962e58880a1cd77fec621c","0159b428383c0fa61a590f7c9c0e7c730ae1756eed2558bd878945856a322476","a1c060890b9724a9e74f18a76cd83af5a7ef5915e013a157567d16473b014075","d557506e7f22c65d676d0aad818844705ac7da07226265e755166fbb9a0162c7","87a6f100239227233f699e19aeb71d5379dcd83681b8464748817e343bec6348","f1104255d54a3404981a46f46b3b6693038762e07dbd1397e4b3cbd6a229e7a1","ed1cb7c53928940a0105dfe61369c96e3f6af69d4c48078eab565caf9573af98","8efd095958c52622b2aa6772a44f939fff2d831b42cabe9233cd8ccd2f4a438d","38643099e759f6b9db1dc190b469982c0e70d71dc8caac721f2a46ded3b658ea","7a4792c9dcf9466d19ba61ec3efd4f578e21f2d3035e8fa6a6264d3045083f7e","43a562d6822dab12c673c1efa0a3171d1ef69b949f676fb01847e1e5b56274de"]

Anchored

2026-09-22

Public log entry

search.sigstore.dev, log index 2907673729 · entry 108e9186e8c5677a06ea…

Expected log hash

bf9a74000249ba6e66b1e29aae9d8cb95c3400dc118569a80e5c0949f3e8ac62 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":"v1789969984102","kind":"published-quote","locale":"de","page":"theme:vaia/price/de","quote":"Die Suchfunktion für Decks ist jetzt hinter einer Bezahlschranke versteckt.","rating":1,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.studysmarter","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 (b9a08f9d6d76…), 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.