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.

“Service is very bad”

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 2622121140

Proof data

Record hash (SHA-256)

c097cb8ba8d61aa2a80a24ca4fb831f3d3a36d76acd45089c60dea667584ca6d

Signature (Ed25519, base64)

NH5khPEfRfFmMZ3xl2n/qMo3L6KFM82Gmt/Ms4eAUiWv28viCFH+ow9u0285Jot/rZSo4CEwR30TFNPQVbWFAw==

Merkle root

f94b7945af97849f26ef2dada74d0b3783c54f0f0489f19fa8afe8ee306a6c96

Merkle path

["c0949ea75d175b3a852c67ff2bd9267c2546e43758794e99e351675265272235","b0a7a9a0703f6aec16b7c63745d3dbf68991a6b34aa240d831d4cf0dd9d99f3a","3285395c137c587edef064e6678e72edf7b5c32e9cc3a12939a888333a0ccf1d","3378a4de76c8c8cfa8fb41a95506b9a777e433041f42b14f8fda8a0bb9d301dc","a9fb672dc253c26000a03bb89f4e15bb95f424f77583fecc2bd503fdb75d61d2","e1887fa3ce130f1f6901c8f67648e128c0bd48c1e766b8f6c0fe345fc84569c5","f62d4e514f101a2b609877766b17f2e5855b538c27b4f42fe6028f0bb50d0ef7","84de7e7413fb9015803c4f6b099cf8e636e4d30328824355f4544389d840aeb6","ab677310ab76cc24e096fb62bf1a0594857fb59dbd3d6d627090338ff55b4358","19166753b84df68c7c867ef34119dbbb8e3c7bbd5158fb447b9836db7da41434","2305d0c8e6a2640fdd73aff64f27c58e112e38c68a350014c32a4e6796498de0","9f7f7b408dd34a784c8f23b6048a281be470fdc960935fbdf65f44a6051aca47","a49de297e11efa67265d59f0608035826bbcbadf984bd392a14cbb0e4c054fc6","c4a5ce465646e705756d3711bb61d83915d6c652a21c96d3d9180afab116b5eb","64e76f146c9d4ad3d72b8919815ba0c8d2e8bcfcfb5b9542dd4561af793b7d27"]

Anchored

2026-08-28

Public log entry

search.sigstore.dev, log index 2622121140 · entry 108e9186e8c5677af74f…

Expected log hash

551b1035d8649aa3719c4625314f5a126b89dd0eaef0d44a4d7c207189a414c4 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":"v1787896046556","kind":"published-quote","locale":"en","page":"theme:metrohm/service/en","quote":"Service is very bad","rating":2,"review_date":"2025-12-13","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 (f94b7945af97…), 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.