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.

“Das Preis-Leistungs-Verhältnis ist für regelmäßige PDF-Nutzer angemessen”

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 2593501033

Proof data

Record hash (SHA-256)

0aaa9ab48a9e3442f670f39ff4c32fbe9d0f20dd6374ccf4ecbc9a93ed855c15

Signature (Ed25519, base64)

J3to9yGDlt3Mwl7PLDuomhuyGpyMS8ecPPQC2mbRHWuXLNzxBnonxYYXEdGqRfNs+7VL2O47j3P6TP7yw0BGDA==

Merkle root

b046f5df2a406d6c32d4f87e14105e0107f6e314c3d6063465b8c6441189c891

Merkle path

["0aa5ded9cdac32052988a40e8068cc30c1852c42cd93097e6f252911ab054ef2","a803e2e6103166da1a72d86db57336330c44a8c699efb09a2ff23f52526ba2d3","05ae553a2028aecefddc8886aa9723d770f28fe3684d486ca55545075fd155fe","dfd0400a920824b19c03e70c20ae07fed8ea401cc2c6df2de16c202f07402f75","1ff2835c0a5c4e0cf79a428bc709f7e1fe4e9fd0161b7620090a6ba90d0981e8","11fcecc5a7408cb64beeb2a9590ffe9e9abd051a62b413821118406b02ebfcd3","ed2cd08ee44113de0a41e000a8d2603b76331eb2edf7036953f4490c2e435b40","b36cd1cd92fb69827a15135b393a679faedec02be90cba0921ad5177649016f2","e4ab923e4dea32795299460f9c1bd6ebe9d97bc659e9f04e65c1b8b5c61e3612","ffe5e8903591031f1496abb82322fadfefd9c6d5be33b4cc325bdb72701d88d5","a25180395f3c5c7b6bbc657c17925654f2501306c2c5a7fabf36328313bb90c4","01f014457410f90e975eb3d5f35c027d99a0857d2dd4e4d65fab61eb21c2e49a","f337a72b5c8d32566231b69df119a20fca7daf15172b90c66e1b6d332dd78858","c35362d8be7493456726dffb35f813b4e10ace25b8e2c3679505eceb5d9a7bb4","4a4ef39d7ab636950ca6d9b7d70c958b0ba84299c7f375e0932c9308990ba8e0"]

Anchored

2026-08-26

Public log entry

search.sigstore.dev, log index 2593501033 · entry 108e9186e8c5677a6e5c…

Expected log hash

804ea852a1c1b02b8c86a35cc42390aabed87fd2aa29b8fb9f7f25e79321f581 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":"v1787709693011","kind":"published-quote","locale":"de","page":"theme:smallpdf/price/de","quote":"Das Preis-Leistungs-Verhältnis ist für regelmäßige PDF-Nutzer angemessen","rating":3,"review_date":"2026-07-20","source":"Capterra","source_url":"https://www.capterra.com/p/172606/Smallpdf/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 (b046f5df2a40…), 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.