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 3122521988

Proof data

Record hash (SHA-256)

19cadb55a3cd9a73236a6fe604e7e5bf680ac22a4ec7131856b8e70066b5396d

Signature (Ed25519, base64)

UmaE7jheInSKEdl5D+ubGD1bE2+n1B59gTlCTTHtPxlCCu+CKOwT7+7PboLwqZ+Q+IW3zPnZWAzZoDWPbHY+BA==

Merkle root

feb82b7f8aea18b46b248fac49fdc21a6b138fec64dc2fa12c4b3c7a81799706

Merkle path

["19d21cf03d4399ec878d901c8c01a8931cbd6f65fb7003dedd7595f40dd8a52e","c880ece4dc9a47aef63140ea7abc1328dfe21761dce3da74da8e5e2801d9e38a","6e9dde7d05355905998f867a4f85c9835c536106dafabdda672a8db5d5ec351e","a7563d235f1c276dacb7e312a8a0f1362d84a36b2c7ac7e3dd3a441f5d7dc838","9a0f579a93eebf3a076f89068e1b8b3469b69eb40813cbc67174c5f53312d4f8","b8038b6bce651ba24437a67911cc7e94f1de4ded7125a3082749a07e8cdad1d6","074cf67bc66a1aeaaebba3af02b6d80980b2d2f65b1764f7aa95e36212243783","91e953400b02ceeb859f5df2c26394fe1d2a8887c2ef4d15df130a2e0b90988c","6319b9eaf5dcd7d82846e245441fbcb0c2c699e86d22cb64ed3bb54e01f48719","884908d484d6960d025c41d68078c51f3c9e565e251e3f785935cc33c8cc0d18","57e87798b7bd776290c5d6e058128debe3fbc8c9a921e1f9fff421f49bb578f6","a86586d097ad6dfcc4efd60a975e3fb89148c9a3be61ec9b351b9cc4a0526bb6","ce9fe8fedce3454cf180d6a66efdbe5fbdc70a0fa838f69d2b9096cbcc6c4c38","e77d494af9e2547c53e58f62769cd14d89c9d23aad38b861f53f29b79396acd3","3520002e20f205a5e2c7683df52b5c77fe454ada68a85506f659d94f96d1078c"]

Anchored

2026-10-07

Public log entry

search.sigstore.dev, log index 3122521988 · entry 108e9186e8c5677afa72…

Expected log hash

9fa0d177312c5b0b22ba9dc313f3316134d71d179dc19912df4abe4610de68bf 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":"v1791343163559","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 (feb82b7f8aea…), 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.