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.

“5 devices! Trust me you’ll use them, how I did”

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 3273402563

Proof data

Record hash (SHA-256)

295b4130584cda612670ab6f4d4f700d30c638d8c471a732f24d415cb8fed0c8

Signature (Ed25519, base64)

fb0C8jJU2wTyDRMBUjV7wM41R+88bsf/g2wPt1xmT861zkwDgmqcHqYqXMJU2KB8jWOayG2z1d9DnBu3PgaoAA==

Merkle root

f157206eaf0681e32c282b6c87b482d5b05edc0371242c4555dfe07a805d46ee

Merkle path

["295a04987ec8e071edc66aec138b500c8f2436a31b28a8355f4c28632a1e083b","edd18a5400c8daa3b82a648419a48face730b503fb6562ec26340ab48555669b","d47345e6e19b528d624d67882fa6b6da776567eee1e0fe38a870c395bd89dc4d","8102fdbe05ce8e1b201ad45b1c81ec54a246977b3f71a1c634819e885ab52e41","d31a11c55db1dd06edc609aa5b2d1dbf207583f8d2c2b5f28660edece71a3bd6","80bcee2f6e041f4b301592fda3e098a8258179d80e959b6970ac249e7b0cf7c2","8e3cbc2d19afc7d0e8e8ccdecded992f72b60397a7adb3531c0c3eb0400ee910","57b24358a1160d77b8601ba99c8c7af4a565e338a5765ae8f39d4a6bb44f3c4f","4f7dd2e0cfebd9bb571158eedd10955012c72dc3056d20b77bc285d1d9e8d03b","20024cd1da55dee95883ed6cbfb345ab1e13cfb473ae4678771a8b491dc0b770","b76ee18cb88fb0eadeb62b2f78cbf13da6d3fda1e321c45e4448f5580f333312","c983079c81f3fe3701fa74b1f3d07ba4ae521d2aa67e53391f4fd7e312ac9423","18d3f68accc8835a5c40f0c374bff5769347a644756ac8ed830a1459ec4a0187","72cec015fa128b419dcf741d3ca687936e9595c259ab78dfd4256d8340270e61"]

Anchored

2026-10-16

Public log entry

search.sigstore.dev, log index 3273402563 · entry 108e9186e8c5677a6df5…

Expected log hash

d39be9954db9139b182dabecbcfa2b9510337ba2b23ae56a3f9ebed18578385c 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":"v1792122859337","kind":"published-quote","locale":"en","page":"brand:expressvpn","quote":"5 devices! Trust me you’ll use them, how I did","rating":5,"review_date":"2026-08-26","source":"Apple App Store","source_url":"https://apps.apple.com/us/app/id886492891?see-all=reviews","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 (f157206eaf06…), 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.