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 equipment is easy to use and very accurate.”

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 2621349433

Proof data

Record hash (SHA-256)

ff3ea921e29faae655e17bed049cb2a16ed37bc7c7bf12b486f02781c965c3ac

Signature (Ed25519, base64)

RcdkMr1vu7lDLZtAussF7Op0fLtcp8hdlJZHLmTG7T4bwMvwEm3e5RCvHqP8/9UWoWDXjwAkZO9jinvcS7XKDA==

Merkle root

52b348c94f3fdce59db013e2d8b151833bfb9c02163bc60ea07ad4321b96c806

Merkle path

["ff3eede227db54691955c2bd73f7b5def6ae0a01b4add6324512efb616f149ff","9babd1372e5fe5a96203b63b00e0a5a4d1253ff6a4e76b99102c74c5d487a3b9","ec898c6647a4bfd21bb93aa0f8c4259b0fb3df3071e2b0a4a7a7ad3cc12fdd2a","ed3bbbf15b0577be7e5c990937dec2cb437224f07b790e506ee23b5e5d8df3a3","4f022e3905c2bcbce24bd4039eeb8cedb9542e4cbeffc0cda0d07376faa6219a","f20aa7550b09f39bfacfe54b433a87ba93010cfbfb8d99df373ca03893e19974","9b0db5895f0a18005f4a15f4af06e0eac34849e1edbd71c446a6c0b8279efeb9","147353293b19382edbe7c99983723a2b5741a2a88ee86f0ec00d13a83689bac7","3a52f24592ba5f4bad559e917d6d3df45e954bc2d49d87ad062ddf6c6df26fc7","229c72486c3c5df50dc0930a08ed11a178309b1ce235a21e8ba3f4673dd0b361"]

Anchored

2026-08-28

Public log entry

search.sigstore.dev, log index 2621349433 · entry 108e9186e8c5677a91b8…

Expected log hash

c0c478568c16caefc62b4dd151387aace853e1d48501c09aaebf0c1fbe3c7cab 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":"v1787884935070","kind":"published-quote","locale":"en","page":"theme:metrohm/fit/en","quote":"The equipment is easy to use and very accurate.","rating":5,"review_date":"2024-12-03","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 (52b348c94f3f…), 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.