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 service is fast and enables me to edit the document.”

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 3240231023

Proof data

Record hash (SHA-256)

04cc2478c42b1defdb5e48f157c7ab2799d1832c4ed2cc3833995f40491aab2f

Signature (Ed25519, base64)

SRS3eVtII9E1e2aVGwOB5ibn/CMZfgd2IWTFrhnhAF8qqM9ubOETyCcpaJCa8Yfh80dZB5EkfLduCX/Qu6ifBQ==

Merkle root

888a38c73939ec95e6f226dbfb3637325026fcafc5a795aa4e227b811d6b2c84

Merkle path

["04cf22f51422a5b32c2da2c0c97291f075c8009b559a15d67574278844767195","2f302db4a50f568f9ca063f99d22b09b839b6f50fef7f5b02361baad8487a74f","7237ae3c2b3e6c2d0b53685880148c3055778313a2780db24985b4ceb590ae41","391ba502d2189710acdd6e9716620f000a49bcef673de1b0f07b5c08bb4f2672","f403f838877861eeb8db48ae29b5945acc473886a03e36820beb2c3d68c4ffd4","462efcb0fe5b1b2bd7f52f965feafe9b4a5360629ef70afa4553ff88a2cd5007","2304260f9838376eec4355dca9f516d1846e1ff35b5bf4332232be17b390019c","70022bc572d8603699f5b3114e65db8f3094d69fa6697a314c74d26991ccb78b","5d2a804ec8700f500579fd76c5bc7a3d0560fb14f9b44a5c5e3aaa2eca859a5f","f5d0ca8ddd765dd1b78d37c77334576cba8d93667406acbea48d75cf49c9c243","c1eb61eef936ab9c32f3a3ac6faa2ef692d0109d56de9f24c4d9e0b98dc22705","062cbbfbeb4fd46f2079783d29fb5f6cef5c48e70dbb9c2980860cd1d92ebf74","410ad2e8ec6f218bef120c1cded3462a092f61baab59fee462fd9704d436d66b","f46648ad2fd9f2769b9fc0ba1c434d2040de67cbd8b7a61df7b7575cd5a9206a"]

Anchored

2026-10-13

Public log entry

search.sigstore.dev, log index 3240231023 · entry 108e9186e8c5677ac0ab…

Expected log hash

bc440cd3136178aee800fe49b9cf2e319542a645c9abbb8553c6ae1e354ce201 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":"v1791860805798","kind":"published-quote","locale":"de","page":"brand:smallpdf","quote":"The service is fast and enables me to edit the document.","rating":5,"review_date":"2026-07-31","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a6c34514015cb10ef6b7786","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 (888a38c73939…), 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.