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.
“Fake charges money for free trial”
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 3258859570
Proof data
- Record hash (SHA-256)
0882df7cb1f2a25ed0525460de1406cd99660e5f879e799c393ef134991d42ac- Signature (Ed25519, base64)
GwEGMsxWmjNBTcCYx4Ao1GuMvs1EzM0eEAGSkvcWCazf6h/Fe7+VQBInaVhA8wwL0c0Jzu1mFSo2obtg+i68BQ==- Merkle root
ca3049e83faa90e23a8ee728d82960c74b9da8080000e4c92979853b767b75e4- Merkle path
["089d1eb0844b353f62ba27586be4802479f652b36f718ab3dd32c8254b3ad096","0a63458f66278f81f2e5211d8537a277e24d5e396c3d8fd8add4a80d4554be73","0c01f604ecd16efd1756e527609423b1352d14d7a0c2e8258397dda1a9de4b70","75fc82444df532008fda2578acc419ed62d74b34a245623d7d677efd4fad2721","ff2953fd9f2b7a2ea2e4ed1220d48203d8c400a36ba82ff1ccfb79772ddc77d1","19a2fcaaf420f4e07e6328347a6bd445cade639361ef3a7a78533636e4509378","f737188216485c460f71a0296c2ff985efaf286e865a702fd90dfc8fb0533586","7dccbd0aa2f42b163e5dd209cdbd817d612775e63b6205894a24806df30c7792","84875545343b213ebb0738369c6ee7ae2353b85732488bae8719466503bb3305","b78ef6842a4b48ba08130dbe754cc7950c26ef6c0a22ca1224f1faa808e3f0f3","82910a5026a7e6ca5de409e1fec5e3a85e26dcb97a04bb4734e3b891249e3f3d","c528a565399f1c43ffb0fc3019a2c2cee2d7413a87787555bb34d4d613541976","3eed51977edad6c2579b7e509587049321fa77487298d3b73535214036c0118d","7614ef067de1e21e5c4ed10ec802ff07f79b9dfb75186edc1d9abf343905b9c9"]- Anchored
- 2026-10-15
- Public log entry
-
search.sigstore.dev, log index 3258859570 · entry
108e9186e8c5677a8fb5… - Expected log hash
-
37382a24206a9b79ef105a983cf477ccafc4b4430b1549876c44fbf5fedaafa5The log entry'sspec.data.hash.valuemust equal this value: the SHA-256 of the Merkle root string above. Recompute it yourself from the root to confirm. - Canonical record
{"dataset_version":"v1792034893828","kind":"published-quote","locale":"en","page":"brand:expressvpn","quote":"Fake charges money for free trial","rating":1,"review_date":"2026-08-29","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.expressvpn.vpn","v":1}
Verify in the public log
- Open the Rekor entry (pre-filled with this proof's log index).
-
In the entry, compare
spec.data.hash.valuewith the "Expected log hash" above: it is the SHA-256 of the Merkle root string (ca3049e83faa…), which ties this proof's root to the log entry. -
Decode
spec.signature.publicKey.contentfrom base64: it must equal Citatio's published key at /.well-known/citatio-signing.json. -
The entry's
integratedTimeis the independent timestamp: the root, and with it this quote, existed no later than that moment. - 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.