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.

“OMG! ICH LIEBE DIESE APP!”
Google Play · 5/5 · 2025-01-27

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 3178600936

Proof data

Record hash (SHA-256): 9e9c4f0d2626981c4f8f88b812ff1121af163edd865ed98c1dbf5dd759a36948
Signature (Ed25519, base64): w9UzjALVz9KBjtw4Ovssqr5yZV0G3i9ZNq2+IjNzAtYUAfnfyOJuSpqxO+r/p48S51wgjmtZ6u99eHBzpt9BDA==
Merkle root: eee462924587f8024361bc8d60043805cf5210f8bd2ef7667df06d093552f9e6
Merkle path: ["9e9e7669d44d47da82e51b4bd4979fc12c8332f15e859d0a9ab42a1ea8347aa2","a334707a2303d0cbd03fa35214e21bf2518a2d72297a02b4b13d24539685653b","104ffb8a0e9781831e77dd39534fd8367a20858165fa80721d83a40f105132e8","fd93c5effc9e0df50e2428e27aca43393452aa0491277d0d42b5b4aafc30a5e5","58353213fe369065deae18859f664cc75bcb95108b67cc8da3605032a164e930","f45417754722ae92171b4e92c59f4a191b313659f91269808f33b9c2108f0068","4cb2a978e349895cb64a21acd1d138d24807ed5444262a8479743e6c1fa2f8e3","bb7b72f3d3d97bca7aabd9b5d07cb6dead8d7deda89d8456d413dafba757ac85","5703b22200f96c010cef288e8fa05379dab968352403e22a7d40eee358eaf180","b4d008c8f1ee8fa93886dfb7ce323ace2a894eacaa83ceb42f68040097342684","35ca37c75727a510daedc47db8b680270c0bcf01dbc7b562eb73f2b4a35aeb92","03109236374994d37cb03d835f824eb739eb2a726edd95454da9d25cea9f6c11","7461bc2d06b1d6bef7145de580cb46d87ddc9fa66e098a96698a96372c033f50","f5776b4aea049b369136550a2eba5c5f94aeaa8e5ccb2b2ad336fc6ccf74ea7d","452f4fcbca19997a15e6a6869c50e026ff02cb90a6ef21da106ee0457e55941a"]
Anchored: 2026-10-10
Public log entry: search.sigstore.dev, log index 3178600936 · entry 108e9186e8c5677a6a91…
Expected log hash: f3dccf508afcb5e89d56dabc8c5aead85de215b1b896d057d463ea1c1bdb13a3 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":"v1791606586319","kind":"published-quote","locale":"de","page":"brand:vaia","quote":"OMG! ICH LIEBE DIESE APP!","rating":5,"review_date":"2025-01-27","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 (eee462924587…), 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.