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 wird fast jedes Jahr immer teurer”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
6f695509a3e74627d804c0312a2884d8910239fcc5b5ad589557eb234de6ee78
Signature (Ed25519, base64)
Pcy+bJWNfZTbMpV37vvJm7BBtEmtVD3Z7r3KcoEOj2iJmAt2lrd+02FWxZSA2XzFOJTVoppJPObl+bHFIZpJBw==
Merkle root
7252afe559009950531df937e7edc9bd1c57cf28a24ed7f6c6613b65f459eae4
Merkle path
["6f68fcb81f76ae8abeecb26435230b323226b5bf6380f1a6bfd64ac5451349f1","0393055919441a982b05da2cf22bc342180957a6cd4967f84ccc9dfa65e71e5e","be20cf61493a3af3e6551b6fb64a469bf0457a9d2ca598b7fadd62c4f9ae035c","2fab53dd5b310c91b605e0ca419aa557bb1b4d4501b9505263995cab10afad4c","6fef8ac4633c19030a9a556a8f2bfe1ae04a38d197fc0e4ef17759ba3c7f7aa1","0cf791b2b95b53a56f3dc8a7bb789e5d282c8d74159aad34f6039f2de906ce00","9dda8486eec8d241ffe3f1b0b183e66d89564fd244d857f3bc64b38ad1530a95","6bc37caa033fd96d98e33842e7aefe1ec7a1ff9ee66d9fdee42680640c000ec6","2456b243144467b6e0770a5236903e268986b83be1e86b1f114db625e42dca16","c576df8628150bd51b3cbd0d606d99e2404299bc3749c1c348bb1af4922be739","abd93d6c4cbd37db780bd891587389c20a6bdc54d493faa66057a12c57c1af21","88302dd5ebc2ba0cc663e042fe6c41ecfe1897521b7123ddb032f75e20d92142","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:threema/price/de","quote":"Threema wird fast jedes Jahr immer teurer","rating":2,"review_date":"2026-02-23","source":"Apple App Store","source_url":"https://apps.apple.com/de/app/id578665578?see-all=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 (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.