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 price compared to Adobe PDF.”

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 3199014646

Proof data

Record hash (SHA-256)

2e37a80f8d8852fd6ae10c616155c184df65773b6e094a761b5d95dc650f9bf6

Signature (Ed25519, base64)

D28K7zCsPnKtLwaBsVZ/gUYh10zoloCe03xQz79MY8kj0uzdk5D1qgCForRNHj4eGG/r5aEDNcxjV7wiAD87BA==

Merkle root

79268b3be1e951447ad916daa23d94d3a225505999279adfec84e5728be030d6

Merkle path

["2e36b3196c178f9bb6b9b887f102362cdd527b0164c2a6735c9ea2932cc081dd","1c4047294f8c02457acadac216ad92fdfc3d281fdad40e197ea2f0f92a124144","aea188e236840934c91f9cb62e54210ad5bb2f3d62398e3ea0db43962e98aefa","5dcdee18dcd827714cb3d088c9d378624fb8546ec47eaf509edd246fd42818bc","7061d80f9bb4a8b10326d70a3a86bb50cf5667a843c310cf15d96ea092e32605","53aec5c2dd64083438394ff3fff50f0abc390d56bfbe42a0e7b926e7d2a52cd4","be79bb92ab5426ad17818ec5f8cd4dc40d73348475fcc8638dad273e4b51d517","27504d597721184d569d96fef36cab41b6a39c9d2a3212937c287e5d13332a5f","d5f2d7ffa49519ef3737c5c67a592a24ea8ac8478db3e1dddba23c5f35040d3f","b68873e9a2a95d4357461d6761c07036150d6d1653187c510af2bee2cb5c5c40","5a1e1b396c4abc5f483318c0b890917f1ead6301ec76c4fabaf6c23b0d600b19","74ec616be75d7ddfa42f796ae5ee64734ee2aef3c18f854d94e8278d3c2de665","ca0926b42bcdad354c17320adc5661c1a0407072f1d5c01424cc2e7f9a3515fd","b8e0a41590cdecf5ee846d5a4dcd3ae91c8a0a052b75fffe7c4c5f4e2ca53884"]

Anchored

2026-10-11

Public log entry

search.sigstore.dev, log index 3199014646 · entry 108e9186e8c5677a77ce…

Expected log hash

55430b734e4d00e4ba9c340c7ab064436f91281dd4cbc27c1ffc37d3e26a0e3e 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":"v1791688566698","kind":"published-quote","locale":"de","page":"brand:pdffiller","quote":"The price compared to Adobe PDF.","rating":5,"review_date":"2026-10-10","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6aca7fd15dda0b40722146fc","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 (79268b3be1e9…), 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.