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.

“Complex programming of analysis methods.”

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 2622009440

Proof data

Record hash (SHA-256)

dbb0813ef0d39b69b3436f475c78b472a943cbf1dd5477380e29d0500e20017d

Signature (Ed25519, base64)

8olOdBbtceRiHu58fS9znEAad7q7fT4MdIX6L4WmBaCZ87PFZvOmCjwt3KqnaNLal0FlamXhkk1iMBDgsHtlCA==

Merkle root

0f9f1f98772de9eb66ade362612cd5ca656a4d200a8d47121b2fe38d9ef47140

Merkle path

["dbb0df1ba711fc4c115faf80e59d9297041351060d67c3febf80d6c3ecee29c9","e104baa191fbdd0170ed7e6c7e09f45a8ae3d59eeb704e1e3b7cc8cf713fad9f","5616285c579fc4766169ae7b7f968d9bf79f193b842122956f950cadb32ed89e","116b8946ef64bb63f8d5eed1ea9438b8e7b2a7a59fee1d41fbfeb0675b0ea437","a761b5f665cce294f4a1020179a1783ffc05bf5ba6c8e5893fc9ca0ff811c62f","4a46f61737c3315c3d7aa7ada94690cb428d2501f0f6abf19f902bf435037290","c304454a6e9906bc283b63642a5c45f757814c8a3da25f35bf576e1f4a42696a","e5969b533d5ca517e467ab2d379e278d275b49c848ee288bcb42fd7475ff41d2","bb02326e51444431be2b421280b634c078f3dc3fe9ff54f24c61f3ced8a048cd","f51901b0f374a6aaac0e0f0e217b8f8ac14a8e3053a8afec86ee77d639fc20df","883d9ea04331bbc17ad99f16415f72eb9c04d85ae6f16c2c2541adf960f1fb7b","d43189fbf3600489269448fc0d03c7a303838c06508e301f3ea21fb13758012f","a1e79a5360ad262a12bcdfff8d780aaae64e676b090a3c9d8d31a05add5d2cf5","2b3a098be3e4b8711cf7f5f2e4cbb5a1fc8d887d99f3fdd93e117a502429b5b5"]

Anchored

2026-08-28

Public log entry

search.sigstore.dev, log index 2622009440 · entry 108e9186e8c5677aff73…

Expected log hash

46b80bf1a64c019a2ecb6a0303a553a66b36eee926131577fb3ad5bc065f2f13 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":"v1787895207832","kind":"published-quote","locale":"en","page":"brand:metrohm","quote":"Complex programming of analysis methods.","rating":3,"review_date":"2024-12-17","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 (0f9f1f98772d…), 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.