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.

“I have combined PDF documents”

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 2542879916

Proof data

Record hash (SHA-256)

f7efc58ef96b3d9a05b02b01abb62f2b4c5478a7616d87bb0fe0666c06ca5a6e

Signature (Ed25519, base64)

jdeYNhcwFt49spcpXWGw55TgFQy0BlX5BGt7DwTZWP2zDhgOUDkWuo4Lxip3xp/Ox5PRAl0S2R5RAnG5KECABQ==

Merkle root

681242bb8cfa94d3b60cc06de1bbe3e5e124dc1675276b11df0aaabc9faee58c

Merkle path

["f7f1add147d1c8101d8e4b3f60555c5c715c6b2fa382450fa7e57943da64a066","67c8a350387518aff34ccf2e2d09e9d2ebe79559825b74e77056344e567af9b0","ee1338950ae92de3b47941cb8857e296e5753f9d4971b668d9ab06386c678cac","dd5db197423eae530fa4e87629036515931ab2c587d709bacf72624a88d64c10","6e40d0a3ee57c39d58b21bbcd27e66b7abe61cebe68843c172b09533280351d8","a8bb6028b465b19aab71b2fcfa849796113920f56e88bab25cdccde04961fd86","7d675b758c88def8d21bb651e86057322b509fd3cb1e5d95a9744e8230107772","88a0fe6cde41f0c627221c41550e86f23ff59ddc9cbb4759dc8a9fc0505c2fb5","9500c76662182b9c7136c7edb6b3f2c5ba5e2eed5b14431f1f592f54c3267b9e","0aaf854a09b796294500204eb1d868eb8a4b2529d843f24a4145b287f9ad77ee","339dae50e33d50aa0cd1dc447432aefad2a6e04bc149cea692cdd6f203acc133","0931601ab88b17ced10d210b73b69d45855330e2f7d04827af69758de2cb8cd3"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2542879916 · entry 108e9186e8c5677a2329…

Expected log hash

8337812f20bf1207a3c96eed87ab975d7e92ac1421dcded24507b32e456b788f 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":"v1787282728402","kind":"published-quote","locale":"de","page":"brand:pdf2go","quote":"I have combined PDF documents","rating":5,"review_date":"2025-03-22","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/67dec82ff7fb412388b240d1","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 (681242bb8cfa…), 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.