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.

“Übertragung auf neues Handy via Backupfile geht problemlos.”
Google Play · 5/5 · 2025-12-11

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): 651c5d8ad90265712bd05b3fc496f5c3bfa786edf228b2c56a0ad6b695112736
Signature (Ed25519, base64): not6zjySRg6skt/VU7pD8uG8Lz6xLhsvkVuWJvWviP+KHfxPStXMqv4LMZkcK6c4x6KQzj/CvauED/kXaGXTAA==
Merkle root: e61c2598d4d03770603e24740bcc427581e87bcbeea2e56dc34fd81a9f496465
Merkle path: ["651cfd51b934aa7bcd557e24b558baa27d0400bda165af4c46c22776b66ba5ee","c80285e39200f78d9133a1609a9b782d1ca5cb22e99582ca5495b1feca51a03f","da7717a40a9ea127fc75fa9df7d9f7d53ab330073d1ba34006ed9d4c3278fd48","5aa1d21e7880489111bfa68bb4bff862a5d22a15d6dc6023aab5a727b4de6fa5","e3f5c9f7f6e336cfebf539c68ea142a59237b07de4a66c61616694269a0da8ea","da7c1e0fe66eac77846b95574f21f285ca48e224e35f43777eb09f36ae9e67ad","60cd53177a905a7fc42c68d06cd765467324ab6809d6b16eae30cb464f0afcc1","dfa99b028e75e04e4545c2095757489be12d7a06b8963ab1f7afd938f2d16ec7","fe9226b77b9b3321d55158aa89e31be9d5992450849ae63cfd8547a1f8caee8c","6c25688165195be0b1823f717b99bce9d9d79637c7735ddba62ac488a81e9982","10f45470031536fc8a54f3b7e678c1fd29f39413ed74b889aaa6ceb20acdf2e6","d6a60e2106352e5dc4a29403d9d5c2ba3b108dc5f0ffc3f9ff74c9776290fc3e","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/delivery/de","quote":"Übertragung auf neues Handy via Backupfile geht problemlos.","rating":5,"review_date":"2025-12-11","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.threema.app","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
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.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
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.