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.

“Probeabo gemacht, welches man nirgends kündigen kann”

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 2543383844

Proof data

Record hash (SHA-256)

8727600dec4c28967ea7bdc3ae65f53abd58de18440923a70843baab7293d54c

Signature (Ed25519, base64)

H+fg05OxnDarZWVgLq6T9I3DffBJIJgQxDYZHAt3agUroFOC3tZ7AF2ph7z9mwHV2VvdeGrlWZwi66+Ton1kBw==

Merkle root

7252afe559009950531df937e7edc9bd1c57cf28a24ed7f6c6613b65f459eae4

Merkle path

["872625d53125124438963f3c52f71e4625e5adc14a68a1b49b8694ef4c349cba","82ff8115e9ad5751f317338243032b58844cee8217f374360ae636eda0a75ba0","70bdabe0a9e67e414196f003f9b2d578d98aaa4616be3214b97fdb74601caaee","49307f5d39b223ccd18d71ea16a1db0a10e76f13c4fe30a34c5f08ea2589d1c0","c5eec655069d30d078179a4f7e9cca0ecc8b31d6e1dda537d031428cc6a80d5c","0f556c52adf641372a3fdf2fa12f6b9ec99b3b2512e070434f39d2860c7659d1","428f1abf6089963328dec53119ab1dff02fac77045fb56c696c98f2d80a59b53","101adc1c4f6be06e758d265b4e738c0114ad5732612654386c14e6b31b5052b4","c780377155c7ea7d9791d302258435de55a9191f64e88a26a40c8e79abee2984","276112ed3ec288d3d8266d55ee77d1ab12032a2fbc8095e63e9e9469f54bba45","8a0ba17a80e62b1e74e5d3633192b4b5893ce87f797d802fd8caafff2b95ef94","7b2ede7fed4ecaea7ff7b3eb3ec387cad1e85984fe541137d35323b3882188e1","18e11e10db085a7803eedbaae6a5cc4bc15224b70fb84f50d498979bf8156746","cd4fda8dbbc96e358ebf0ecb75fa543c15a1f0707b57959166ff1973bb1b4136","b3900b15a2a9b7aa805b691ce86e29db39e03d547238a84a3c0fff4fc2daa54a"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2543383844 · entry 108e9186e8c5677a6025…

Expected log hash

65212d488cd7bdd0d67aebdd70bfc57f4b622fa08b8179427635d69eb7ec385b 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":"v1787285599851","kind":"published-quote","locale":"de","page":"theme:canva/returns/de","quote":"Probeabo gemacht, welches man nirgends kündigen kann","rating":1,"review_date":"2026-05-21","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.canva.editor","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 (7252afe55900…), 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.