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.

“YouTube only renders without freezing at 420p”

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 2776103867

Proof data

Record hash (SHA-256)

9a469d41fa6c61206fd11da7c487918965e3e4b9536a6b4f2fed51b532e42849

Signature (Ed25519, base64)

ywK2e7w70SCtKbC3mFERyqffupYY4UwEpxebdtFV4cIEXtVMdxnZrzhq5pwKkg9UAZapYEWITexfDLZYswv5Ag==

Merkle root

4dc0bd79ba3e9442f7f1feb21f347e2f6fdbc72e99098aa5164776a6202654a8

Merkle path

["9a46c6603aba78271ed0e4c34ee43c78464dd3651398f8e04484253d8295317a","e7b7b84ccb231f501aadf1f50b4b24ff4e26e89962a2053c0c2e0edd5261c9fd","f90b062d64a80b81e8872b0c734ec76c90a5e8369a8aade9cf62562602c7f781","7320d292c725b8ae26099b2954b09001609f743b8a8aa9f9621bd930896aa372","5884e8b3c672e2142d273fa3fa6a457356f5e2595be75ae49f0d9e6e299b5737","88a89552a276b9531fc513bb05238429d65cacf9dba47f1fa0b69b97691b8f99","709643af2710095c0f70bc56c2222294631bd3b1a427416163df73d2a433bd88","fdd83dba4165a80aa7aaae9359a832b2e9059d51b501a79c3231a02edaca3c96","64f28b0cd2247a306706e4398ee08ea4f02f41e83e4379542ad8eb0a67ffbebc","24070f958a98be7bb1d6ff7039da385b6ecb760b574f73ea480458fc24b33e76","c7f0b20463fa92f65ab613da04333e124ae92f0c335a5de60bd52de28079b4cc","24e450961210e2cdc5fdcdec60b2324d5b3e7e704d00d92186e8f725bb0670d2","e3a1de018ae2658686c8ef0556fbf43b0147585a01189da83c1927e13f8542e0","d3f9820ef177ffb6742d93ecece273e46037aa87afa8ee19fc7a0b34f6ac592a","e60c2274998b06992577796b6abe86bec144203fe960878f7951a3ae12c9e532"]

Anchored

2026-09-10

Public log entry

search.sigstore.dev, log index 2776103867 · entry 108e9186e8c5677acd4f…

Expected log hash

2498329b7eaf275d309293dfbac35d05dfb8a55c65956add8448561c05945f28 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":"v1788848066028","kind":"published-quote","locale":"en","page":"subtheme:surfshark/quality/slow-speeds/en","quote":"YouTube only renders without freezing at 420p","rating":2,"review_date":"2026-06-13","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 (4dc0bd79ba3e…), 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.