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.

“the UI is incredibly simple to navigate”

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)

cfa19a9c42aefa81453c2b591c060c6d294567b6fac6b13d65ac67a3350d353c

Signature (Ed25519, base64)

lNYOZZXK4t5pR8BY0qna/vo03V6FCnfxcqPfH6hoqsZO4aWDCmL0rmcXFxJEbDta23BcfrutyFd4Vb5ujdp7Dg==

Merkle root

4dc0bd79ba3e9442f7f1feb21f347e2f6fdbc72e99098aa5164776a6202654a8

Merkle path

["cfa22f252c659799a59afb98dba213e27940e54ba7887043d58fe36dc9252a6d","78eaac33b39eb4bd014437560ee3b001491882df557cb60cdca9743f5fcef656","64b32796106150204ad65bf794bba4c5322824b08bb305a898703d15ef00078f","54aaead8702b405192a3f072dec1d368ed6f666bc705761575f821949d3cba59","14f6d65de50b9cedb5018def30daba07d34685bcfac3bcf10f5a62d7905ca485","9686bff4e83d68dd74e4a19ee289811c9f7b68a3d66305b757feb70620d5d0b9","d564817db2acf6ae1370f3f2ef62413837c9f3f95e7fce78a4ebe18e41a137ee","9cb9ec26ff1daa168efa115be8330b2ac166ac49d4d95c4a6d9291bebaffbda0","edc5cffcb681255326465aa21bf7f9303748d1cd9df9266cd43f78d42ec77e5a","df7c7e95d62ff5fb10b14181298c039b8d7fc16609ac7fa1c154c256646cdb1b","8ae43f764a6c923e22bb9e8a064b7b74e810bd722a0010d60ed9161689181da1","ea302cbe265c8dc3387d0cc3e68ee3f50565bb74ab154f55c34efa7e7e75395f","c9f1105d4f80db6afe27e70c9e1c7fa8740faf4babc45eaba315edf5ba35bc67","6ca8568b4e7c7e4e3b794231ecbe4a3822994a26c5f3f7fd0671946fee25f414","66f93059eee3676095d6925b7cc2fe3b97c348e816a4d3ce47c4b00902d3a227"]

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":"theme:surfshark/ordering/en","quote":"the UI is incredibly simple to navigate","rating":5,"review_date":"2026-08-26","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a8ed5a4dc2ee4c365075760","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.