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've been using it for 3 years and it's generally good.”

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 3272785693

Proof data

Record hash (SHA-256)

200557e18ecf0bd25a3f79611b3c52d1f8933b3e082689f2c6eb9465e726905e

Signature (Ed25519, base64)

n6QuQKJNVUd2lj2u8sBy/7x9nJMXzkfz0stLG9SsLqKV5KgWhM24o5pG/v87df+0ngKoQrsDunVoehgBu81EBw==

Merkle root

42ee8ba4b974d737f78b7f168d0af8ea0510697ac4ab4c6db44b5522bd195660

Merkle path

["1ff007abddb817c053d62b592afe454cce6ac12ecfa54bf064147b7d1d99a056","efce2825d895001e5899a96811053a090f0e3822d9c5a9527449c64317b3b864","00eb8c9059eb388857931e33bd249ffe6aebbbcbf7263961d318044b9e56417d","a7bbecc474e96a496004ce08dd5e72e14f06b2c63b979464284cf6fdcb78514a","94823de4c4f4f2c749d6203bd5a58b7e7a86e5ebf8552da64612103300946422","69c1663f1397a5cb031352e6f0a21fbc109188babe402947e988a80c40385ff5","0c0e7c216d2ed198afbc9932b0578d1ec91eb4a57732c8395555c7b4750b757e","d4e692a4215e5e440682eced820a24ccc3d587a02fc9255e3ba8c79ca2d2ec77","e33efc6b6976a99464755af11d591f8305a9b88b29c962ed274726616433e6a9","7778590ccf9957433e23805327232ed4474099e8db24b893ab2296722c9cec77","a2b46a1a793b32df1d1c7215f98613a95eb5843e284cc2bb9a43f7d9bef3a545","5f15fc19c161cf1b078cec1dbb446ebe0ad796b02ab5da46a3b86356dc6581b7","49dd732b74591111793e90f822c8febb6b4e9dba2f427a61f4d9f7035d4c82e9","c77ac7da32c6d4db47aeb73e606322601c1bed1566533de53bf56d1599928d0e"]

Anchored

2026-10-16

Public log entry

search.sigstore.dev, log index 3272785693 · entry 108e9186e8c5677ad5db…

Expected log hash

3b93391ec0595ab5c0ff73f2540eb1322f56c3c1302e6789c57b97c74423deaf 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":"v1792118508353","kind":"published-quote","locale":"en","page":"brand:surfshark","quote":"I've been using it for 3 years and it's generally good.","rating":4,"review_date":"2026-09-06","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.surfshark.vpnclient.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 (42ee8ba4b974…), 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.