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.

“Seit nerr Woche stürzt die App nachm öffnen Ab also nochmal öffnen.”

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 2544092674

Proof data

Record hash (SHA-256)

73df61d4f31a1c3ccad8a62c57402e6015a5312fc7950cb8c44b3d6c2c9adb67

Signature (Ed25519, base64)

sxn5GsuhV9b4WOdM/aEY4lZ4jPCG+61zAA4tvVq/iIUxairE1j1bY19LWiG7t+XSejhbk1ep9DjsMprAMddEAg==

Merkle root

fc0474f2ab9253f8c52a81a0b2f1ae382f5f022f9b54f4e3fe06eadaf19fcf31

Merkle path

["73e6fc18827d8f7f38dfd65a4589167c086a97e740e9ef8db174316abad837f7","8133c4f235a1a643c951968497ede8c993402053e5bbdcb79052777cf83b7418","dda3a1b49a7f89b356fc5bae78cbf669871e7edcf725922974f806ab76eaacb7","c1bb4ff7e05df9b86041a83d1bfc3f17e0e4bcf2c917e5987abd0dce5eb87ea9","9951ee597e22d0b39dff69b01a7310a0e57d644fb764b76c68f331a5eb6707cd","44512db5f0b14e567499ffb9da3407f12434ce5df6b9035a0fecf2a1a66d7e5b","288165f8ff7a9774b55b1e6eaea95898f0cbb1c5a80445603c15f3b7084f9b77","05f9e8d9dd245b551055817d7c94b127745d9f623eec258506b3bc931b634695","25176a0289af88f8929e5e01e1d5249888e294e65dd5e1bfc8c44fcde1878114","c25ac93c445c907a1344c5af7d48a7e2f75b9dd99ffade6a82d7ed2b4cb417cd","5486d6c21ae4d73d0ab8c07d890706995749597298a1b5964e6b235e0d4f92fc","4b473519aec772c9e255916dd393be76b9639055882afbfb7981bc3d09a6ab5e","45c0c0e230e3fef68f32d677676bfb42e35f39fb2908713c2469479af7a56696","5e3e14a1ecafa84280522a5086c1c4eb7da1d2c5613bfc63f3fbb10c0768d98b","df2c1289894581f6e22c526afc719be15b70c61ef4fbef0978dff78cc8fc6054"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2544092674 · entry 108e9186e8c5677a1b30…

Expected log hash

e3ca1014bd6a1a766a29da72cd2b9f7f9c6c416fe6af720fafa94eca555dc171 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":"v1787289954326","kind":"published-quote","locale":"de","page":"theme:threema/durability/de","quote":"Seit nerr Woche stürzt die App nachm öffnen Ab also nochmal öffnen.","rating":4,"review_date":"2026-01-30","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 (fc0474f2ab92…), 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.