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.

“Ich kann sie nicht benutzen”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
ebeaca9fd515c9dd76bf1d064875b6ab76529f835a84f106fcfee43d2caf0432
Signature (Ed25519, base64)
RFpHA5WVWN8ox0fY4OBmQFh8PDkCExlUZQqHFGl/EUmdisMvUGO6Pc6YLPPy/YAO8FpdykEIO6XvoKGXj+SBBw==
Merkle root
b9a08f9d6d76dd148110a496219c42cf3205c6f982800d84d5c85d77e9461e02
Merkle path
["ebee9b7eedc3698b9e9443235b680234577ec604b93257f690ac9d7a708e2f4f","fbd2058fa79694b5b62e5407ea6544f483023632f33c928e0a67bbdc9b355afd","80fe1562f648cd64e7de8a7be8d8d042e94bdfb13751ef1c078c272f23f1e093","623cb900eb7af4f5a344daa7455ac5f1d28080dd9fdd91ddc921fc567fe46241","e8676474d0289ee16404a01c746367a0f849c884bb9bfcc7aec7bc47253b0791","cf7467834125f0b253e5a0cbc02a20f9b7c35d7bb41c80f1780cbad0ba08bd9c","bf770ee893dba9b2271033faedf8a1b60a187c62391a79e08647e126a354f936","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/durability/de","quote":"Ich kann sie nicht benutzen","rating":5,"review_date":"2025-06-18","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.