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.

“Threema Work nimmt dem User das Recht an den eigenen Daten: Der Arbeitgeber kann Work & Private zusammenführen.”

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 2543978942

Proof data

Record hash (SHA-256)

868c6a7e56cf0bbaad4a4c4996737a681ae06f223955b19136c8237c3bf8009b

Signature (Ed25519, base64)

tW0rvvvvBtkkDB7Wnemwiyr9OUQLFi+OCalzYrv0y44uWmANAbhwKuYLZy6apk6bsouSDHlZc20PJyY7mLasAw==

Merkle root

3ea09355a1b22a15fffcd33ac0d37e4039cee2896092e637dd8c4e7dfb5d507a

Merkle path

["86823e659c71953706e5cef0a0184a79ef2c5ce2adfb5fe19b69f96c3ff05d68","34adac0bd5328c2d4e883546086e15734d1069a7adc8e10073ce6e2087437baa","0c49811a19f53b733f0c657d0d589274dc000be5b10ccdf8cf69b4f1188a026f","63b848b3c6f0a269752ce49d2381a56182887517d0ac9c87f6fb2bb499081074","f430d0686c8bc90cf2f7c56d8f3e56e397a474ddd91b95e0722d95b2eef5f086","37b0c1d2a4de775b44ae6d1953dab33dc5cd302725858e5cb583dced60d26872","65fc6a390387a9d183ff77a2635fdaa68fad29c77ba9082f727ff459b4ef6007","28d3889a14030348396964be8c603e8e89cec984452e4e6ed755c5fff67f3ccf","32c09c52c876cd35043cfa5638812f2d9985aa27e3ef5605ece22ec7ea03235d","38232d94e9bd835afe9ecfbf006575ddeb93bf0d8808c41d989d374de78e7e60","0225880fbaf0e1522fc5f46da2d0534aac6857b5623b67e29a637f56ac31617b","d9fdc12007f65cd7b2ab7d70aef6e5f42f0ad37f38a511e87070ff4279bc7493","0ead555428295332ed003e76021a0f41139c28278eb5ac0da90eb0f864c2f749","d8ed3a5c7d4cd902063782d2b816101a433fa513967f9352f92e3b3b0172862c","331ffac0f34e1f76cacd782a04285f7bacef5f5dffbd1f8163703fce9b22280d"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2543978942 · entry 108e9186e8c5677ac836…

Expected log hash

69ff2d97383073bd392d75b79533a80cb25c69be55aee7dcb24b1acf4a379172 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":"v1787289230204","kind":"published-quote","locale":"de","page":"theme:threema/billing/de","quote":"Threema Work nimmt dem User das Recht an den eigenen Daten: Der Arbeitgeber kann Work & Private zusammenführen.","rating":1,"review_date":"2025-05-03","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.threema.app.work","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 (3ea09355a1b2…), 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.