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 2907673729

Proof data

Record hash (SHA-256): eb5b28931f4e4b694223031a2e7e27cae8dbc746bcdaa707ad1e57b72dceab5d
Signature (Ed25519, base64): pPlHHXU9sAzIWaZxC45EtoiwKeSmY7kZCSNktsiHCgRHMGqAgyrcHJ6Ybve28ZeD60D3iZBGfzwVyIgEIYFyAw==
Merkle root: b9a08f9d6d76dd148110a496219c42cf3205c6f982800d84d5c85d77e9461e02
Merkle path: ["eb5aa9ce499990aa09be4ef44bd3bfa7eaf28ab14c3c40f8b4edd72bf670fba4","2dfd3427c492b2187107c705fd9c89ed5ad9848dc7e427f3b5bb53d554f72e84","61bde7f238801ce5cbe84ea3e6cc91277289d02bc824926803ba64cc3a99a102","90ff8944308d7d0e38be257270275e12b5a2c86bb713065ec84cb41c17696353","f788c2a439ee0481e9e2c9976c5492843df573009d527ceeb8ac30e190bc9028","94c2b8567ea1558f0405c6a7180f677297d8c5ba2e56b41d89edd365bc9bff85","23b2da2fe3dcbb219605be5dfb008d7317d6b8b71712a3e59b4add8591361412","15779448880cba1ca9ca893ab58a5b3c4a6db25398b549c0605a17716e566eeb","19775b628e05585f063d9c9ad5ce06eed279ad0afa767a698e3c2c7cef3321f1","f42bd15dff167c3a154991ba076db073f27d08122e315bab679695fd94aed699","1ce8185a67fc0f0f175627564ef800e7835dfec27d00240c56e1eaf3b636cfe9","e89b125d6d75a826a464fa50668f6e82a6668dbc929bfd3fce7c23cc14adfdbc","c975f4076f62a76765a4bc502e988829db65110a1650004b828d2dfb5f90a9da","f92a7fda99af63eb008476cac47b147880eec6868f847624f8b438c917195408","4543e8b9ac7bd077d9526acfdae449f0a0d5517cbb42414f50ef930ecdb9470b"]
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/billing/de","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 (b9a08f9d6d76…), 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.