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 wish it would not constantly crash on my older phone.”

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 3666503969

Proof data

Record hash (SHA-256)

118d7ac698f3e61e3078d42d6c9e5a0c70ad39986af33b9d05a5724b9744c116

Signature (Ed25519, base64)

ddjIdesHZibmTrQWOvE05DyK4tuERF/qTAotmscjdteYXvv7Y1OwKf9bHQb//nlbaAW3rEfUGHdSTicjfPDxAw==

Merkle root

7fcf639a7573b11c0c63296f1f4cad9d82711469135561c27b140b3f8cf0f233

Merkle path

["119fd4101df93e838b0b134e68be838e2f26bd7f59fb71285c9f7648f3087a03","7d39f57ab6d2762829ddb0185a9c53a849b5f54a16c10f337cc95c123ac20678","c1258b08251bdedee5f5f9745775d34b88e4086c3d70b54d6fc10a06e83f07be","bd8b218423898268509929917c690b0152de553382dd128cf155fe1a4d5202b4","dc4a8e59c03eddf9f1bf3fb9185d033d7be96f6fae45b1ca6183708bdbb85868","136750b72a462f0fda88f71e401c45f072fcfa6b83e827c1e4e90d2b1eb83bd3","84bc9017b2bbf6e776a685dfa60d77f96f72c236d0675b0aedc4f7397fc2842c","40493d6acfb11748a5a73f29f3f8d45dab6c3615e9d5069c53bf62743f9fce62","cb761c5bbc4c0f4ab93df228005a65f4d5e3c37c94b583d2c9c6301932cae637","8a633b07599328cf8ed191c20d5874d05db66c6ecc72ba64c742b13d89a02e66","07b09ead5e3200c1b520970718a379d46d297e4c0f0f99a01dde8b4b2e5e882d","c4613c89731736364f3f3856f24ef3babe183ce20545df5fbb70ac024301ebc7","b978843be08c52cb951ca064b6ce98b7a05b3bb460ac7b4bd5d1657a0d8a155a"]

Anchored

2026-11-03

Public log entry

search.sigstore.dev, log index 3666503969 · entry 108e9186e8c5677a89d4…

Expected log hash

8f203023a4c26e044b3b27e73dbe1466d2f19b715af45abb5c7e82ddfacac0ea 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":"v1793701411816","kind":"published-quote","locale":"en","page":"brand:surfshark","quote":"I wish it would not constantly crash on my older phone.","rating":4,"review_date":"2026-09-03","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 (7fcf639a7573…), 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.