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.

“customer support was very helpful”

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 3247835674

Proof data

Record hash (SHA-256)

00398faa320ec35c1be161f78f6c9eb9fc5096523a9565baa2e1d9d2d77b75d0

Signature (Ed25519, base64)

kZfpLMxLOzn+3XMODk8DI/Kve8/iPdK8+GZ7rvfalu11IUdQ7PWl2G/Rxp8Wp8w8Tqqfcxje6ObaJCEqS5ooAQ==

Merkle root

8af5f2f3f65c47a75dcdddbf363e3e76b22d37f4e953d150fcfa3e84bb04dba5

Merkle path

["003aa240da372d32ccc6a91798fcf16037e576e99ebeca9495d640c3dbc16ca7","5384e1af31b74b9dc20d3cb79c45fc0beff94bb7fcca34f2de8cf30402d9e239","5ebad6076936776d441bc95b36d432a184febee58730efc18beb7505f31fff35","b4a64d28689f349755056529016534e981ba1a1960d3f09e7a9b7fa3b62bcac0","8deac7fd6d9453df6be066324d32d707076efef7465d0a8f7c1c2ad7da372ab6","8aa60aa0d6d999bbd8ad8423403a97efc74f312703daacd812b053c122a23ec4","8782817481fb22e45ded698df96001c6b086e01e1941a37025d2a4155602bdd3","2604456c57f6e4629e9f3a32b242c50a5993bdbee71667aaf1a806403ccd4900","18cc092538dca4ee83244538e23b2e041304cbc898a76c372bcd1478544b3bb5","c5b6704c038d47d2378e7825f4405c596cadf3e4f58890085fb142aadaec0b39","5b6bf80b3005705f51dc7da6c03522d0a90ff1a4add2493eec66879a0621f813","69e0b278fde36472d775b547f81c80ab6a46676326bfbd973817b55dc3255d09","2df4d836b73633f71fa96faafac3d9d32f00951d180b99885afa9511763f7b1f","2212eb5ff51e97198ac2cd6542275dfcf712b9be9a8fab294a9bf844689bcee1"]

Anchored

2026-10-14

Public log entry

search.sigstore.dev, log index 3247835674 · entry 108e9186e8c5677afded…

Expected log hash

306cff230c51a4aeee6711c8f2603eb2af6985e8dc9f5dc959efafe3398b8caf 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":"v1791944613264","kind":"published-quote","locale":"en","page":"brand:smallpdf","quote":"customer support was very helpful","rating":5,"review_date":"2026-05-28","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 (8af5f2f3f65c…), 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.