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.

“One of my go-to apps for studying.”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
87fb320ad63217898e3b004213542173cab1d478b94812dc7216ca67d1fc3d13
Signature (Ed25519, base64)
nTAwvmyDUy7EZAMmPrJVcy2G8CopLz4IEUCYHfoGBdlCGCqfrCtOk3azKR2NrFYGxjcZijYCNH067nSsd3cJAA==
Merkle root
b9a08f9d6d76dd148110a496219c42cf3205c6f982800d84d5c85d77e9461e02
Merkle path
["87f88751baeff22f0a20530dd21a07216b63d0437b2d0dc44062e46dc69aad62","023dbb0be176890a007e5c24f9dffb6a290d13ceaccb65f7f01a1dd46c80b081","bc7136d0f78426897cf79e5314091fb53e1135383534224d7b95b4cd861840cd","1999e6364eb31fa43c934d93cd6ba188bbb1b1b2982a086c5ac85acbd2f8de53","ca8979e318bd1eb4f7318bbcc477fe86a8749720d9eab84db99f866855508a61","8f83c22deab5e6cbdbaf4c748f13de8e44612d5b457b230cb83a932c9f537fc8","a1b5bbdf7173622ad484704871d4ed61348d19697e9b77a08987cb952c625822","b147b534391b2d9872c107eb53e269d4efdd95c11947f6192a7ae8a9f91b1baa","fa346198f719680e8877b971c5750cfb56e16cdbf15788520679dbe2a11bee1a","8f5b698ec5ff0fc7f38e616167b98750c934b1dd7b41b09f8152c15e06947dce","50bdc76befa6ecd9e0c334b3819af885dcd126bfdf66736d3440e5dc53453af8","d89f5af62fa7d0c6d0a9fe42e9680d2e7af53ca738a716457a3405d68b60cdb4","8b252735b283ab7584d9f6925f08ed38c911c64db001463eafabe5061cb6f9fe","6c299608515c69a03540be35865f96ca4932f3e0403f8f39fb0e1c2e2aedffb4","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":"en","page":"theme:vaia/fit/en","quote":"One of my go-to apps for studying.","rating":4,"review_date":"2026-03-23","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.