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.

“Everything is self-explanatory and it's fast!”

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)

978e5438f900d774c92a8f2ee3705063a48daa5c990c3476550e7e1658b0a2f3

Signature (Ed25519, base64)

Z0nZDA3jz95FgfHuWITidVVEYbsjq5yucSk5zlxiqiyYTwuh9xoa9yuzXEeaI1O1uawaa8EUqhV1xgNVFz0SBw==

Merkle root

4dc0bd79ba3e9442f7f1feb21f347e2f6fdbc72e99098aa5164776a6202654a8

Merkle path

["978bbf2bfb266f7682e62658eea0fc81067645a50e5e54b57ed135edde7211cd","94be768ba96c474c1f8895bea4af63c2500cbb1b0e6b07152a47d07acef7d120","2d8d5654b7a7804f53d75633d7fc8fc2267505c2fad93947a0e83ae6c47c5571","fb2e6f0199b795130960ad0b2dccb72e5913efa45b2c7bc078442e6bb588a10b","ba137c17110c548d03669c01ceda2e64b7610fc84d59cf82d2022e093ee58ec2","37dc84ee2796c294d33ecbb394a4b808322e7808fc0ec8a4da048e56e2b964c5","0f31afd920d9382cf5db92522bb6768c52a73ab3cec4e6e6741a2177aa250623","7cdf4dbf92d751afcf8642eeec0e9d4f7edfbc1207548808d63e035d96a6fe54","1b0e26692ef4ed600e1f3cb709a7c85236580823d3cb7760e96ff408eae8dcc2","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":"theme:surfshark/ordering/en","quote":"Everything is self-explanatory and it's fast!","rating":5,"review_date":"2026-08-27","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.