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.

“Sie fordert mich auf, das Abonnement im Play Store zu kündigen.”
Google Play · 1/5 · 2026-01-11

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 3121353835

Proof data

Record hash (SHA-256): d472ca5bf320d77ea127c06eeaff50136736c569d4598121c38aa576af83700e
Signature (Ed25519, base64): yK9ZDNTdJDbURjmaPPa6HNrupzzh5+DxXedfTs3dZ0IiwJhr2EMLUQWDx5M428GU1NoFuhPejLU5aq5rmD60CA==
Merkle root: 1128c1e3e4534f30e1f8c2f8fc1f60db99ca4dd81f25405dfff62ff1f39e22a6
Merkle path: ["d4780c4466fcbe9a9639c735ac1cd3bc9a2005b6ad490f1273990760688b99d2","3767c6726288d5b48eaf9c0df502e823b562193d483603f20b76963e4d2eedda","ca8deab93c8538a6a0e20457804c1dd7e40b5afe537996d59a943a4e97f1e721","01aa310078e546f7ca4dbb5630cdeb6934d672057bd1c7832df565250917d256","10cd70ff5337425910571a7de8913a9a7ed1f3a2b1aad2d258e1da7cdec290be","6b7a3376b30310fbb04d9e90ff4c07452dc843540cdb0a7c368c03c1b0249bcc","25a3448ba7de02842a1b2bd8d27299e0f7fb60595067e039bb9cb6bdd18b0963","652afd057325657d8f74507ffddd97e330c2bceabe6656f111f5b1bf073fb21a","4cfe50819b1aca9d09d8ad4ec3fd8ed29d662208cc72fb1bc5cdea347d9d2f1f","61441b7fed9d40b86d98ebf9da15e019cafd9a9d37c28543c1b21ebb0accd492","9774850bf127edacd7f240099fe6b490df3ce7a55d33e25eabe9857d33138605","af418db1914973afd8fba19bfccec4401b8533b3ab4df9ec9cd4b1c3e280b179","a56d4ebfc3e50127132360d5bb05291cab945fda2f5b43252a5c72643efc273b","7e713154c923be82ce1375371bfd0581a450c49f074e148372ef4740f1434073","0f1ba71c060deedc77d8566f04d4f91c80878775c47405bff7bedef8fadff3b3"]
Anchored: 2026-10-07
Public log entry: search.sigstore.dev, log index 3121353835 · entry 108e9186e8c5677a938c…
Expected log hash: 3980f7151edd7b0249ea159b11c34712cba10d59cd8ffa603af676e538f81cfd 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":"v1791338675665","kind":"published-quote","locale":"de","page":"theme:vaia/billing/de","quote":"Sie fordert mich auf, das Abonnement im Play Store zu kündigen.","rating":1,"review_date":"2026-01-11","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.studysmarter","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 (1128c1e3e453…), 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.