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.

“I cancelled my subscription in February 2025 and didn't have premium access afterward, yet I was charged €69.99 months later”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
7bcdf261850960d1384cab2e242dda17a60d1fdd81373397eb8bbca05ca08838
Signature (Ed25519, base64)
/+Xmvyt6OhZFabazDC+9sNEuX7QA2QlzihMbJ5+vKvFTO9EyHR263txmRBb3hrc/aKZ6sYM7DPo1REC3h8jhBA==
Merkle root
b9a08f9d6d76dd148110a496219c42cf3205c6f982800d84d5c85d77e9461e02
Merkle path
["7bcb4fe9fc1edd8cac04abd65ce26b9175ff7cd800dfaddd730e479afec96627","1a008654f328ee41144fbc9dc9c24526dc9b7b18fe7589a8a7116062171c12ad","b280b939eb94ac39bba431e94240e5098497fd04ce57f8b738893c0a312abc8a","a658a5bcc450dcd3eadc6e33752cee119cbeba279fb8e97de4e7d642426dfdb5","c8968c5e1dc92c5a4a99da80bc2c6dd90155bf1f46d06a55126523cd61dc7806","95503453b2ea0de1c64bb11d89676e400c088f44d5f1fef463ecf8eec27508c3","71f772baed216b0b0ccc638ac0a9d78311ae7d3e7b3457cb4717541c2698c9a4","9fffe5c56e2b2a19d8f5fdb02ede14d555fa9fb271c453b08dcc6792c80ec029","293a9badc7133155fe2f7a1ba773f0e800febe07437f6e126b4298c6ede50a9b","f04083244b632e3f16e57317adda1c2d5e08719ee6e74a3c8970207b0cea049f","fe718997edf5ba83b24bd1cb8cfa58771528317111e3e956c9e9f853ee4ee6c9","f8cfc666649943796cc64798f4b6be7235ebee26ef544e99b42bab2155b6cbad","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":"de","page":"theme:vaia/billing/de","quote":"I cancelled my subscription in February 2025 and didn't have premium access afterward, yet I was charged €69.99 months later","rating":1,"review_date":"2026-01-09","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.