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.

“That one has to pay 10 euros for a Pro subscription.”

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 3637396099

Proof data

Record hash (SHA-256)

00ce2b0dd65bf0819844210f85e0d2d1a22b8e9ed85ec570cd29328bf692c99b

Signature (Ed25519, base64)

Ee+NLCCL3waBnAsdDv0vzrTI7Jqkby7hhWAuIUnK+Z/ufRersEXcqtYXSyTmXYTvCf5LAYDKmmxmNForgoPeDg==

Merkle root

8f2c2f05f88c969dd850965729c24c32c52cc6403a26008c0bd53784ae27507c

Merkle path

["00cedc80a35f245c8e79448d2c7288b638a760ab6bcbbcf69f3280582ce9fae7","155a4ef4368ddade3c5a66a350d145e0fc7884c574670d0871cc1c512d20e738","c6970ace5a4006e6c8a40889b4b0f583e43ec669af81f163f579fc215d1af8de","331e4bb8455350dd276416c510945c818cc3f93382f2527d3d5b5f2f8c6400f9","69c27e907d9bd2a40ee45eaf09337179d3b9be6473c0ee07df267995ae20358d","21c13a0aeefd4fc24364603d1b63213ca9dd375822d0aac2a463a78f7270d97f","3a5615a8dbe2811908ecaaad671d3dbc02a90ffd86d64b1a833cc897018260c6","f44d21d8b7cfea9d22a54884d62c0c1c7a5d0f3b5ae0c1a2a1e247aa88c36cad","264e0e56155d3eaff6599f2e589e6f3ec0dfed5b72df5667f5ec4d2eeb7834f8","acef9474edc08c67f71966b565f0fb1c62067a443a9dc5e4943324a57bdce542","9e3c04fc08bd62849a8af91b719f66804ee8710de126ec9bcaca27dd74c0b3ba","a4032a234c9f4713654e6a84ab5dbda9df3bf27d86ebb8ee6e761e0263dc017e","1cc438269a1190f75ec95ac8b661278f7f1bcbf699a11b5ba685e615e03039c4"]

Anchored

2026-11-02

Public log entry

search.sigstore.dev, log index 3637396099 · entry 108e9186e8c5677a241a…

Expected log hash

e2625e03ca8112d902567b372759b1b1cfdf1591befeb5c03dac093cdf478b4a 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":"v1793587598614","kind":"published-quote","locale":"de","page":"brand:smallpdf","quote":"That one has to pay 10 euros for a Pro subscription.","rating":5,"review_date":"2026-06-22","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 (8f2c2f05f88c…), 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.