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 was charged ₦73,500 for a 12-month subscription”

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 3241341297

Proof data

Record hash (SHA-256)

18c003190cd45a8ecb4401d345f06c985705a0cd57eae1c1d18ddb47b6623a5b

Signature (Ed25519, base64)

k5bdZ3iA30ZJuOAmsCY4VMI2NAdUuFJn17iuMbDPDtWyILr2UlseioQ1i2FJE0u5W8X7n8TRpwoqVoXmJFNqAg==

Merkle root

4900b1080bdcd3b4c9234f01647614e7004e0a1ae01ead44968e31abeab33265

Merkle path

["18c430ef1295a29a26b446e4e7b50629d08bd2e2948cb8d65289127e0d1b6a31","2afff51b3d9b598dad6fe580e8cf4b24391efcda342d221481f0ed3bbff0a371","0bb06e504107b929b2b5311cfb3a1081e3e4636dc6d1556fc4e7a0f26ec026a2","4f69916be698997d97c409c27f1ab032405b9f72f1135c82f759fb52090da291","976264378fe2ebc9d9d5e76d8c81f46fd071f29890b985d42e44f86ab300ddd1","dc83d1e38671c50e0a22a4d864c8cceb875e0a43716f5dca7c5a948b2bf51752","2754be9847866c2af9658bb08537b8022fa1a440d77fbb9df34b909b82e7ab44","2333517a6e4532a64bee84f3977a8e16440c72462e419bb96601fc6881e8390e","cb3e9a4a64dfa170582db00858af4032907ca7cf3374b5d2280e4f909c57b7c5","999d6b8f6743667d7995d1f745ae01eab4b4361597027f3111c665cfac05ba14","869d5c71bdc11cb98278f8177533edddd28deb9d0f3c678398dc6eb0ac9594a5","4f4d0831440aadf9cdde8508ea8672cceb008a30da8e04261a55c46ea8a8ea6b","acc667d852c71a0e84a086ab20f7bbad3d8ae083a1e44cd20501ad641f662bdf","0a4842003c61f69c5923b6aafd56426e7fe934e483f7d15b620c07fa61f89152"]

Anchored

2026-10-13

Public log entry

search.sigstore.dev, log index 3241341297 · entry 108e9186e8c5677a0e53…

Expected log hash

39342fbb95f8cce5be4111719e5450984494edcdff99b8bd9a5c0d2303b67943 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":"v1791866192176","kind":"published-quote","locale":"en","page":"brand:expressvpn","quote":"I was charged ₦73,500 for a 12-month subscription","rating":1,"review_date":"2026-08-25","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.expressvpn.vpn","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 (4900b1080bdc…), 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.