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.

“Ich hatte ein Problem mit der Abonnement-Rechnung”

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 2513802575

Proof data

Record hash (SHA-256)

097eeea01f0f2f7cde5a7b9becf699f50efcb4b0b7fde182031e24c4b05ffeb7

Signature (Ed25519, base64)

EfbYRPS1wNb9VAOLeushuX/d7nP7YWmHGVZK8DgUY81TcPb4USEtncE6HVwuNFDQ1KVU/yVIG5UOS2KOgr/wAQ==

Merkle root

80de158564b7616572ca0c0059561f6ec90cd5bce49a388e61df989f3f6f2a86

Merkle path

["097d69a237c57025917e8ddb00a1dfae5d63a2b54b5a9bbe5f1bccda61975609","27121d68d07e978a97cbcb6dd2a3f4cf54a8f932caa3818d946473904aa4dc21","d00fd9b03a038bcbc90586cfab30c49081cc57f7e90223290cc59ca09c8b9858","069706fe96d6f9a09f8bbadacc7af27138b5deebb363280fcf6f933bc67e8d90","6b0fd7c6a53ced11acee761037a88e68578155b605ac15997c26b94984574991","09be9023c54a65ddb2f00303e170b9b7417efd543d2359b588306263e779528d","191fd172a65c373148aa361a23f2ae183577b64bbc9b8fae9d32e5eb44296809","8c6fe098d391db4615c7726cbf26166cd65df7f4b4cbfc522c4badb2efc5132c","bf33ab2a7e05e56270c053593ae14fe4acdcae46095412ef35ada7658095ac3f","0c2946b5932b5505827d214fc97aa39a6a7054b07ba0bbb9fca8803711f49931","8d5894daffd6dff13a35e221a89bebd1cfddd8e7a509dfebfa987d62e5e6170d","a555f13c6c97c193df7dcf9c4acd43c29481486a25c64863a705825840cdab19","c0d3c29d57b890f7faa23830cb86c1df3b164402674908e09950b515624cad23","f23007ee336c6a9903bdec729de4dd7e96694a7e2f1071f195563e9aff8dd97f","68889fd35b89925b8d265e65260618471cd9c2f5458718fde3d6cb3829d8f00f"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2513802575 · entry 108e9186e8c5677a9216…

Expected log hash

5899b5d0ea18fa3c879147333708054c2e3cd77662f2b6f633aa3b5d5512bbe5 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":"v1787121142818","kind":"published-quote","locale":"de","page":"theme:smallpdf/billing/de","quote":"Ich hatte ein Problem mit der Abonnement-Rechnung","rating":5,"review_date":"2026-06-25","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 (80de158564b7…), 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.