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 couldn't cancel my subscription in the app.”

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 3220562278

Proof data

Record hash (SHA-256)

18aeda3e2cf29f72c73effc6b7a6cf35a9abe207668d1de494140811aff07e8b

Signature (Ed25519, base64)

DNz279taVn4VuuSc5FoGNutFhvVQBTD77qMNb4BLxK4DKwox0qdXHj6UjBeDElA7D4Aw7CiXk6A6BvMQp7dIBA==

Merkle root

2d214bb14438515f4bedf5edd9b00a6a5113a016ba9b9fe8160d41d7e6046722

Merkle path

["188baf2caae44d37346b7b5272e02ab97af283ae2371e8d897ebca81080455e3","fc3a88f1c267f28baa410d2a757f04aacb2fb5830cd2172b7a9562448f760f9f","3acf6d4da82d75b65a11a67fe81e2d08a05918c782eb238ed593e12b582a2f12","3233706cfc02621eb4900885381766a4174184a0fa8f1d1e1d1e5453d1e9a115","d39fdd28b386b667fd9b5d49d97b46c7c2f00d3ee6d0a87a22a5d60dc77c49c2","81e3c0201a6a2ee636bf479045a040e1f5eba5135d785c5cb7845f9cd4d462ce","9cc218824c02f9bc63d1d48154c1afa93240c2de433776958bc891d7a28241d2","fd2bc47dce98e9fe675c327a602d113e311a25aa2dba8898b20317099f1d57d8","4425d9664adecdb4c8db5cce173a37b59b074aa54dc80482370c0782dca6117f","b81859e437784ccc5d85f40efa584fcefc2808725e16a069601e996c11cf39a4","6524509ec6f167247a2cd45e3762fc6c559758c07e1a3635b8c25ecf53d4bb52","ebdcf4f2d06ecaa7512b4e82d75b0892ee788e93cc90eec4b56bdf4af103e975","c8e78357eabd343df2a6d1ad8a9c122f986bc772443ab896b1e0fa855f0ebd28","35ea2df06612b261a549235c4e62b3e1ad1789f05da56f9ca671421e5071b72b"]

Anchored

2026-10-12

Public log entry

search.sigstore.dev, log index 3220562278 · entry 108e9186e8c5677a2753…

Expected log hash

13907aa3d3da271016c4b5e75946c4440692c6b4e1684187b965dbb983b157f7 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":"v1791777669660","kind":"published-quote","locale":"en","page":"brand:nordvpn","quote":"I couldn't cancel my subscription in the app.","rating":1,"review_date":"2026-08-30","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.nordvpn.android","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 (2d214bb14438…), 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.