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.

“Proton VPN has kept my security and privacy like no other”

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 3240231023

Proof data

Record hash (SHA-256)

1443247813838d2ec1837982d71d49ae8e6c4e9fb00a1a523fc9eaee6ebff996

Signature (Ed25519, base64)

g5o5ikDEG511+Pm3kRSMBaBVlzBfr8YCS81BAFYCBO1no+sjmGI6PAhk1sGh7r6FGLxQzDXBS6YPO7jAIVdsDw==

Merkle root

888a38c73939ec95e6f226dbfb3637325026fcafc5a795aa4e227b811d6b2c84

Merkle path

["1442ce2d0021bd0a1a880c2f5bf10f86a9b9f834201301703683f43e363e099b","bc9a08b3d1d31a1e21a6e44be4bab9797905b4781fbb5009f6a15fec1be71e9c","99fc18628017e6407e3f481c9fb0b1064fd5fcb0d6c57df222fce3fc696380e8","be59faa264e9248c2d5077a910965dbb23532bd87bdfa5510d48bdd3be6f2cc1","6bfe2e8f7054daafd2467405581eefe3ae4b1b30b7391df4cfaacbc2cac58602","93d40485d5d5554e01d2847701206e76e41c8b971968cead5fa971a8575fc9f6","da3779928d902bd088acc1cc659a1608d8acc9679909982eb4073e7dfefd9ac1","1674b39b3a566b9ece67b36668f19f53b8af4640a4ca049d71c1f22164990c0f","800f99d3d2664cb628574ae7a4551cbfa09d65e1c3bb062b6dbfde5f396084ef","f672d5a3f78316595234cfbe13e327aa77ed3ab9df28801da2321c6973b767d9","c1eb61eef936ab9c32f3a3ac6faa2ef692d0109d56de9f24c4d9e0b98dc22705","062cbbfbeb4fd46f2079783d29fb5f6cef5c48e70dbb9c2980860cd1d92ebf74","410ad2e8ec6f218bef120c1cded3462a092f61baab59fee462fd9704d436d66b","f46648ad2fd9f2769b9fc0ba1c434d2040de67cbd8b7a61df7b7575cd5a9206a"]

Anchored

2026-10-13

Public log entry

search.sigstore.dev, log index 3240231023 · entry 108e9186e8c5677ac0ab…

Expected log hash

bc440cd3136178aee800fe49b9cf2e319542a645c9abbb8553c6ae1e354ce201 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":"v1791860805798","kind":"published-quote","locale":"en","page":"brand:proton","quote":"Proton VPN has kept my security and privacy like no other","rating":5,"review_date":"2026-07-26","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.protonvpn.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 (888a38c73939…), 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.