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.

“Schreibe ich eine Nachricht, stürzt die Meldung regelmäßig ab”

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 2515345787

Proof data

Record hash (SHA-256)

7c942a04cd38f9b46ad7fb9300161121c0e8f27c6f2d3d9e7a90e57970141736

Signature (Ed25519, base64)

JxE5e9OdJSHhtMqN13+WeY4cgsPdjCdNM7lq1/J2ygxMDWHxlYdqNSz129MfjV1ZBgpkdrwjoLgSDBhZWY8PBA==

Merkle root

e61c2598d4d03770603e24740bcc427581e87bcbeea2e56dc34fd81a9f496465

Merkle path

["7c942c40e05654c0dfdb7669d34da4da1282e7b2cb6b798ed1e7dc271873ef3d","e937a8799e6f250da740fba785b37206c6eb531ff3243609dfd5068ab70f365e","054872db942d26421635da030a45197fcdc645af3f8efdb47d35bdcc5873f0e9","2c2a9b761134c73cd585cae56bf451982fb922cc620827546916071c26c101fa","21636853ff567c27c43b04545042999315448a1e0565d236fb76c6445c42aa1a","f704ddbb698d6225aadbe5a24f3158c12d647f6fdc3fe9ba4ddf2cb4239259ce","fa9ae4f67957b4a57b3a6c19ea008cc1a55bb1f4e4ca88666a9ae01fc2cd7ad1","240c16dd652dfe939392c930dba3c47a2a83d6722193ab2ccb333c8475e95c50","ddb6cf7e2aa753eff75e3a3986c920a1b951bafe18c2ec61901ef7d76a13587c","7fea5b137e56e33cd8bf2e1b6db4ac48a3668c604c1e75e2ec0f1a0ed9858465","8ee7032db4fdcf5b5226ce1f8cb9a0c745968d6a4a5911747fe90464bc964504","db7172ce14e794d11e5f11fe11ac06253cffac3c662e17e925db59b4efa0b12f","7f1d0c445bb13ae8c90e977abd9f4b017f1736dd8a0b6837e8297de8e292d186","f1950e4af29dd22cc94bc58ead6e376c41b02edc9ab0ebaff7fa6fa0f9bd3732","11a62e67a9d98d919358ca5b8855f911ccdc865f14b203213de31adc67657443"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2515345787 · entry 108e9186e8c5677a749c…

Expected log hash

d9a90b5e7311041bf4315991ca7f2fbceee461daa2ae70a8b8b95323461a31cd 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":"v1787140356347","kind":"published-quote","locale":"de","page":"theme:threema/billing/de","quote":"Schreibe ich eine Nachricht, stürzt die Meldung regelmäßig ab","rating":1,"review_date":"2025-08-04","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.threema.app","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 (e61c2598d4d0…), 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.