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.

“Die Genauigkeit ist durchaus fragwürdig.”

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)

ff09f83304a208fc0783e7aa2d8764e82cb59df7c4152c3ca150434dffce426a

Signature (Ed25519, base64)

/dan3mPH7+P+DDRwCmbZBKDE7bSar36LRfcsHMLfqYQ0THXFiOBC7+rlBlXpeFeoLfOO3gM/HAEm/MuQs7ftCg==

Merkle root

52b348c94f3fdce59db013e2d8b151833bfb9c02163bc60ea07ad4321b96c806

Merkle path

["ff0b6ac25c51dd525d1dd393fba0da73594d7412b524ebe91b46cf8d0bf20ea2","5a47e753513c8f6f990491f06e23225c3b3a35639de680613fe4c4be89877bca","1feb9c5cb1812d9e446f4539b8840586fc678948bc317f8cd1dbb3dc9f3936de","e781cf2db10a3d78540b23f956f8e1f7aae161c6975112c0574b9fcbc55cfb51","61d8ca420734ac25b9153c467998eb66d4b3ef113f3bec38c128c6da16599ab0","d4fcceb5c12409ec4000ba2ef4c4d7a6682cf8541e730e4f63e37975d81e753e","6a7e0f5c1a214e8f8f39ab87e62486a21b6e7380c0cd552364b9ef3d71fa2010","8193faf08229d90425449764e3be1a47bcfc390580a61e35ea323ab9a113695a","2d0c9f598690795af8ee9585063e52894455fa66f73ae6a1aad0bd1593011ba3","161b1162d4945ccf70dffce8fd116f312e3e96540438a6eee83f085201365853","78867e012d4f81691a9b086099a3f900db9280c693f9bc94f2ed9e7d69eb59da","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":"de","page":"theme:metrohm/quality/de","quote":"Die Genauigkeit ist durchaus fragwürdig.","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 (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.