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.

“Stürzt nach GooglePlay-Systemupdates regelmäßig ab”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
fb12fd44a6b560201d94a7bdc8bc0581526bda4e79acd8d7ce3a09e8826009f8
Signature (Ed25519, base64)
NlpX0N2rJdEk9STfGjK6vip2STTIr4krcqOiocxWG05vKaTpnzJ8oA4rZyCPbnJs6pz43AKVame/84ZaTJaIAw==
Merkle root
d9909e7ff193b610d96d9930fa8111baf2fdaa08b732478b03ded2b9e1e52914
Merkle path
["fb1272076beef778faa3357d8d933ed20b639698fbf84097ece2acbfcaa162fd","d61959d41e819a6a6dc03bdaab564bc4abe546440f1ae1e6e5deaee9f34871a6","e7ccb81596f15ea4a00f4541d31f9edfcbdc05204eba0659175337b1a4cc092e","b1106469d140a8df2b51ff6ca82cecf90d71be260119893ceb44e6a28117be8f","695bae15283a0d06e7b10797564a99729188790a9f015eec6f6dd181764f112e","ac04c9656b7c16d10f52434f93f975f3dcadb38ffb9f8eb3338c370af53b3fa1","9ba5d357cd7bf2cbe31940c8bab3f6c7408f70442e9ca9dee6d6655823de3243","a12bf58486d310d74d5f236c67c52c45aa00f0a4ff4a112b7ca7365cee5e5526","a96ea60ee912664c22f1967fe3f5a8f19716a498f42e9b99e77cb358fc193159","31de785c3327c2058649cd0b9bbb8b25f7dc0544b85d4d0d6a65c403907e19f7","8a909dd29a200274334382dfed19e4329e769796db8747d226433e3eb32c67fa","0ea8b66b67f93a3bb16d6bebbb43a56eb438bdecc1bf401d458a7c17e5043ee0","1bcb7bc00b1e5cadfce7b60cca8099d462417180bb3e0559a6a9a3ef44be52c1"]
Anchored
2026-08-19
Public log entry
search.sigstore.dev, log index 2515095234 · entry 108e9186e8c5677a299c…
Expected log hash
6f0abb2e15f57da153d99eb9fe756fd2540bcac51fcddbf7ac60c4be3cfb5f7f 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":"v1787136684512","kind":"published-quote","locale":"de","page":"brand:threema","quote":"Stürzt nach GooglePlay-Systemupdates regelmäßig ab","rating":4,"review_date":"2026-08-06","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 (d9909e7ff193…), 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.