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 card paper is thin and cheap.”

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 2514446349

Proof data

Record hash (SHA-256)

8fbf4dd254946fa124e34615633c75842e2d3908c22cdf029b877a8e9afe1503

Signature (Ed25519, base64)

vzdJ3tchgfILzLz1Mdu+GAmZHVudHgp43gfIRnJkJbpWZZk5pEaSuGTBS1m6fHpmQ3Koh/BcvOFUOzx1RXy/Bw==

Merkle root

3030a3ea5b39192cafd732e0b397cfa387f40a2253f2715cd6a4d9d218dba468

Merkle path

["8fbf1ebfff0c7a482b197f02ddd610dcf4c9284728a0a8ee4ab2c88dc63a9bf2","49b05875d7651d6c776e8b3ae9669d7d352009c7c263a1d7111cb3502d580335","402579b1ffee562147f3c40699d84c0537e67d7105ebb284a8df6706e809f19d","b46aa58cf6db0a0f0f70421b05e047d199cd940856b2831533b0920d219c2d23","1047f3bb43a50bbaab44b21c741d0c1535046c8bd631fe9873e8e9ab51586dde","8c3d99e4cff1742d8c5690dc4e7539be2d22a2b73be94df28335238ea78ae3c7","c557736e76bb3c9d60708bb7faf3566875d3c9bdebbffbc0378310f973cd08e5","b64a0f0c1c4ce6de2e4b84dea69d13862578857b83865328e038876dfec39194","1ccedff427d983da63694600c6c9c94591420f7ca92ddcafd2e56582ee44d50a","931573089c2a176bdfb8a77923887c084703556491a7ca8bc2c14da571311b4a","7528956f83e970ab558f37344d48800714fc2aad97a005c18f2e011ded12c2bf","c7092b4603ce705abb128dea3f113994e0d3d6426fb35e1db5e52f508839c3ba","2916c49e141b64bde96d77d6dbcb073471576d2eaed21b52dddebef4a7654964","fa236bbf83f61e60a6b63c899666e78098c5b5cc95b126245f16085503380c3a","559fcf7745d7b07c729ccd960c18a4660eed501cde8669d27c3235203d371b20"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2514446349 · entry 108e9186e8c5677af084…

Expected log hash

901e903dca7784cbcc0b860ca8f2ae684aa8c7d566efb3654aface7bae409ccd 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":"v1787128322154","kind":"published-quote","locale":"de","page":"theme:canva/returns/de","quote":"the card paper is thin and cheap.","rating":2,"review_date":"2026-07-28","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a68b6cfc14ce329e2fd5e57","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 (3030a3ea5b39…), 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.