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 accuracy is quite debatable.”

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 2622255255

Proof data

Record hash (SHA-256)

eb021844d24cfa0e7c76f110ba8c8025f7c0f02af4452c4ba8baf3920e1ca624

Signature (Ed25519, base64)

7LjGwgwSfZSrBrT/9Q40ut7uQ4Aw+e7lSWRyB4FdXNNnnpP3RBdo1hCbDgmW34u6Qu16DQT0ML5lAK6gCCAZCQ==

Merkle root

21e7bb8f2fd2dd8d8171a23c0a79176483db4731970a3fe8e0e328189fa103b6

Merkle path

["eb02cd5d4ab8810f59d51035270011afcf2e9e8a00fd70fa3dd80d35c5b4f829","219f8f999d271f24d381cc02fb9d0c4298fe0b001f3db765f0bf88923439d812","13a68ad8a4bce8f89ec8715c902c329c5176940de5e8e96de4dbf4e9fdfcbecf","178a3c35f14138a169d84713a533b5aa728e99ce65139ff1992647c93c92ca79","25db740165b39d129de2bd90896994c0bc6c55e53f8e7fbdbaf86f77ed6dbbf3","808213ebd10ab895974582a652764e4dd15196a7d4fcee0cc11a12bc2be1fa79","bd3db478e39ba0c12e4d51ab3161e3529ac866f092cf8b2c6317b32e7d6bc5c3","72130e12282a0bb4a671b5c58636ae0014d26c27082c393ca3da2ac63f8676c8","0de7aac79897d993152b8502e3a59a5652e25b2a1fe4bae663ee8936f70748c9","787f1b988a1a914f9caba022874e6dfb712a6beb72a540dc614d66fdc59bb2c0","86a38c0fcc2a0f58e73c1541cd81a9d4d59236c6cad8d8b17ad2e150865bd82c","6e0657ef54ce5a26aa6e53e6acb50333540606833b5dff9dfae3fd631d2d5a6d","d87974d5c94f3efd5c6f3798372ad4dd7ab166b2a7dda721b13f924d617b3784","1db6a684d2ddde304dce7dd32015445ec4c0ccdad689f35384be07da0c8e852e"]

Anchored

2026-08-28

Public log entry

search.sigstore.dev, log index 2622255255 · entry 108e9186e8c5677a7795…

Expected log hash

f2a0e8f2b4dab3949c746be15f65076279656fc5309daaeff038c9a778ee0653 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":"v1787896781880","kind":"published-quote","locale":"en","page":"theme:metrohm/quality/en","quote":"The accuracy is quite debatable.","rating":1,"review_date":"2024-09-02","source":"SelectScience","source_url":"https://www.selectscience.net/product/eco-titrator#reviews","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 (21e7bb8f2fd2…), 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.