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.

“they later confirmed it was wrong”

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 2515095234

Proof data

Record hash (SHA-256)

fc7957a9d1aa0eee56aa6db2ff1033f0279ba2703dd0bb57d639ff0c5f15aaa5

Signature (Ed25519, base64)

XdQ265nyetTUQtbXSPC5jvYHl1i0CBb38EEIdXwxuUz+4V5terHL3biVec72w8sZL5na/8I7a5YYWRT1Rsy7CA==

Merkle root

d9909e7ff193b610d96d9930fa8111baf2fdaa08b732478b03ded2b9e1e52914

Merkle path

["fc7772243ca6685285eaa20eda3f317db1d4e34bc2ff4a90b18732ea57fa9195","8769fe2e7f4954dabc470a9208ecbc3e00b64a15cad3dbf92780c1363b8c9202","22a639d42c070efb6ca346dfabb47a2252b5b9c185062683f6fdc7c863910dea","55bab0cf6bd3661d3ca3f4673ebeb560fa4a4fc4cfd1f53221556e45b0cd917f","453268d4fe9a73bd1b9d6920dcd1637ff51698328708c0e88db359cdffd2e10c","23ec9f4cc184d403edec6b844258c19867bbb0989ba373a565f8da8223ccffc4","d22daba4412ff2275d852e164f99443eaf79c293bed89281f196aa35f44e0475","55686a5dcdfd0f20cfdc64fd0bbc8b7844d6994a7b2094fb7e7dfc117b25c15b","f3bf98b1123a1fe22020a357010a60b573d9d4f39bc4defc99cbe484a66e1960","31de785c3327c2058649cd0b9bbb8b25f7dc0544b85d4d0d6a65c403907e19f7","8a909dd29a200274334382dfed19e4329e769796db8747d226433e3eb32c67fa","0ea8b66b67f93a3bb16d6bebbb43a56eb438bdecc1bf401d458a7c17e5043ee0","1bcb7bc00b1e5cadfce7b60cca8099d462417180bb3e0559a6a9a3ef44be52c1"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2515095234 · entry 108e9186e8c5677a299c…

Expected log hash

6f0abb2e15f57da153d99eb9fe756fd2540bcac51fcddbf7ac60c4be3cfb5f7f 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":"v1787136684512","kind":"published-quote","locale":"en","page":"brand:yumpu","quote":"they later confirmed it was wrong","rating":1,"review_date":"2026-08-13","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a7ddf1658bb519c97586754","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 (d9909e7ff193…), 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.