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.

“Works well, and is able to bypass the great firewall.”

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 3272274666

Proof data

Record hash (SHA-256)

14d33522aee283826caa52fd85bd6ba318c8d9f0f67d7dc3b67cb3700bcbccc1

Signature (Ed25519, base64)

cfR4flQCesoyy7XCS6NHCpISdnniRKuypv7dETF0ILlhwR6AKOU9x6pTeqaSMH8xvV53E/he5V0f4d9zQUsZAA==

Merkle root

a4d47c2a34f6eeba31e2744fb1551fe9a0e34820dfc152f1ad93a68b24759c3a

Merkle path

["14cf7e414929a25410dc0404e919b59a047ab34ed4b42babd1a3cea782756861","10381f92c042835c583daf9e3041153757702ed270397e6e51a567d171e5f253","54394c3c241b82ca742243c1afe01267479b733f30800ed9f66cffa3023dcbce","655e9ff6ed0ae2145fa3797043d45ad85d97481a25002497d76df2944a7d1302","4589cdd9ad354f54ecea2709e0f5fd54245265fa5d30dabc2b36362e61220a93","a8b493c0738457dc75e2a66d688a194136b837b44fb0b51ffc93f9971676b55c","e828fbbbb1dbf064ad293f1179469cee3cbd6fa66e9caaa1e85f4b4be3641507","44d90d2a8c3378b29f2e29c805cf8432820e524aa87e7d0cdd351e9c96a04a2f","fc6e9fc968f46f0e1a199a61843ba5c5df2550eb4ed36846a7829dd0c9a63fce","0d6dc980770ecb2484c2492ddb0af32ac789b8653586afd83a49ff50a3e532d3","8f3b5e1b98f4eb33172e959946f3638ce127fd1be49e04d0a6fc4e42b083c937","718239fed8057dcd9c8669511115793713c3c27b1e9657de27f870abdd5c7bee","0d7c4faad4992f205f2c1ebb2b0e4b1b7e9d070f1f77d3f8d64b80626c324f46","35108299fffbb5c1a0d86f074b5805457d73da5ec7c848a19bc9a928f6a42a99"]

Anchored

2026-10-16

Public log entry

search.sigstore.dev, log index 3272274666 · entry 108e9186e8c5677a2724…

Expected log hash

d56e71820b4c8c62b755e9f6e3d2b624566d12db6dd1606e99ef55749400c387 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":"v1792036997995","kind":"published-quote","locale":"en","page":"brand:expressvpn","quote":"Works well, and is able to bypass the great firewall.","rating":5,"review_date":"2026-05-12","source":"Apple App Store","source_url":"https://apps.apple.com/sg/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 (a4d47c2a34f6…), 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.