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.

“freundliche kundendienstleistung”

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 2582616117

Proof data

Record hash (SHA-256)

0c6a142ab0689d64aacca47de2911fe49da442f2c0640e4b0a027b75ec4af1a9

Signature (Ed25519, base64)

zNZ+fPAq2B4PXtJvWRyqvsSic1yQCu1QQz+w4hVbUHEXCndqI7iFI9rhz9SftsVacXBfexmtMQIRkYV/GeiFBA==

Merkle root

9d8e2118061e8945f2bd66d48af4d41bec49fc5ac2ae7970f14474403c85bdc4

Merkle path

["0c6b0652320c72d6c5f736d9cbda5fd74cdff8f82c87613580c7ef72b29cc827","db196a1fff924e49676e10baf488ce0b9156b8f864ed27773c8a712b587a69b5","137837dfdebd54c353e289d78f45f039015b6dc36457334d4643fb4502d6d0b6","d573dc2094472baa1609ebdc1b0d7eb366d751aa3fc5f709ce164f4e8ed32cc3","0e98322a777dfe53bb1025754932640a254d2eb729f8186e9506ce563762cf7b","e5bce3d016930191af5f98ee6600c93dffd6b935208117a92d79140f77040edd","a2cc25a561cd5ef4a1f986c03fe020e1af7c63f1b820c66c518c1284bd394044","a9c4f895125a123bbfbd99ec70446a271c35b053eecca1be2b3116a08c202378","673535a98a1a68b453257c1c62d918a60e8007b3ffbfb77af43f19a5e5ff2f46","b2f40b6be5966dd21d8dbd4d0e22829c3990990c4aaa5a43c37dcf4827d1e6a5","5b4cf64f531b54996783d9aebebce1617fab442d23c58fce155302b3e24b1bc0","4a829cc4819bccb2252c7060d242a979547a534ad16930fb8d55ce7bec8c4620","e94cada08df1868a2e48549247fae87f2147cc360c1565604cfc61c670e9f86d","06ef0af9e89fc67c0d3893fca6fc616c0d6440ace9f21e5de833bce51809dcc7","9ab50226de18913fd10dfc030adeb43f34868f074a98e3eba882908660737bc6"]

Anchored

2026-08-25

Public log entry

search.sigstore.dev, log index 2582616117 · entry 108e9186e8c5677a09b5…

Expected log hash

d7708a8d5cc2ca7faff1f105ce6603ac0b5d5c740c6cd85cf034e25532cbb25a 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":"v1787626691405","kind":"published-quote","locale":"de","page":"product:smallpdf/merge-pdf/de","quote":"freundliche kundendienstleistung","rating":5,"review_date":"2026-04-09","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 (9d8e2118061e…), 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.