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 testing speed is relatively 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 3162293789

Proof data

Record hash (SHA-256)

3a703a0cba48ab3d62b8f5aa944139c7816a7e2f7e833c531d1f848181a899e4

Signature (Ed25519, base64)

9jow+S7RXQt26kzI3t/Zt82vL9rx4dbw94slkFjzeLm6+TDyaabFPSKM80CDHX+1BWbKQzVD3BqPfEL6WcahAg==

Merkle root

ab8d4de5853e13d360962f03dfb915842a42e1c5601cdaac4f2b37ad0ba96b78

Merkle path

["3a6f63492f0229de0d873fb84d6237087ff7f55330ccfedc09b7a457b0c1cfaa","f41263b90cac75467a838a28bdc0be8d143bf26e84d8b6b1d9735ff1aa66e366","09785e2ad8a59a84e468561355ec7adf7fada1e2048385b7558cba019847c93d","b4c718d35199badb9faf3d837ffe7f8538ccf506a5a4e43e6a6856263efdf750","ec877dcd57042a114e972b5313323b9fbb5c6b482552e7cdc82ef65ed68cf2ec","a7b75ce20a767fe55c3e7dfbd12da7854008432944eb0d18aa3480e16b21bd97","935d6c70c0a2f16e155ae6fbf989bb9367ced4ac3465f743aa54154ac0a0ad5a","15d3a7003b0503cf83b7ebf68d8cb3b650e7259b4cf790da5338e2577cc02652","d031194026a3e74d8cc38b2624cc5ec5d486a7f71d28e5c0510f210fc2c8a513","1103c0ab103b5b1382fddfc5ce479f2ba1e90fac5cf797b08905b48a31c8600c","694dade8b1c70cf6375187d8a50d78014918497c23b0bc8d629c1d68fec9267b","c211904b9171b5c272f5c1438c153a9b8b9a82a69b1c78717cb68f70f412c0fa","145b8339a2152137a5c533b9fee0b743027ca75044265351c444699ba891d42f","6b7938d0463f2b633e195d7021170023360849e40ff5e64ffe0633d28e084f81","90ac6c76618b09f3702b50a6410c80828bbcb4ead0d9d85dda294a654717f483"]

Anchored

2026-10-09

Public log entry

search.sigstore.dev, log index 3162293789 · entry 108e9186e8c5677af0ef…

Expected log hash

49c1b9c7cf9c0180248092c94f6cb48d5e59f6c65f471decaa61f120e90874ce 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":"v1791539611981","kind":"published-quote","locale":"en","page":"brand:metrohm","quote":"The testing speed is relatively fast","rating":5,"review_date":"2025-12-10","source":"SelectScience","source_url":"https://www.selectscience.net/product/omnis#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 (ab8d4de5853e…), 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.