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.

“Be careful that the initial information isn't altered or the answer incomplete.”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
85bf3db8a0dd8bca29b428e776c3a7272e715016a32e11ff113265edd29fe231
Signature (Ed25519, base64)
pSWFQRYQm4Ssjey2+7KkHv/bfWQucdaJ3p6gCg4NkjzK1AItf5TaezwO4wdPqW6jN2KsTG7cyUPF4eLT+0IvAw==
Merkle root
b9a08f9d6d76dd148110a496219c42cf3205c6f982800d84d5c85d77e9461e02
Merkle path
["85c001f25e671b9fb0c02d501cf7ed33d5ac88caa08c2290e5317324cac094e9","9adff78d67a62362db5c0b87f0e51a6aa2d6774f04e984a6ad9c18d9cb7531b3","52e8a0b72233e3132c97bdb815d2bf4867ad50a40001b27ece3cd54f34e705e6","5ef788a7e608c7431d059c5eb84f04b7c2a656c9891b78b3548e24ea43b66f00","8b3701785c81aa530a9bc9fa759b39c4b33e0f87863433f13c9291edd24677b3","3974986eaf4a3269967186292ff12aa1dec6f05263945b26df30a872b477e549","a3451e868ebb13cf407ef769bc3579cc21c29eb01a4494fd749b18e4900de89b","561f127f22bb308dcc59c829149cf9068f67199510891a3fb367e4bb074afada","7985c5136f7da1486e54eeffaa029024f4b18c5f8208037b3debb56b45931657","66c4ff1af10ac2b2e59d66ab919507c0e96270c6866d38265ede99ef983b9819","b12c24ca7cc480dac10d3c9e7ddd80a781d96f3b29af3e073b54d3ea0a23098b","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/communication/en","quote":"Be careful that the initial information isn't altered or the answer incomplete.","rating":4,"review_date":"2026-08-15","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.