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.

“Die Bearbeitung war schnell und unkompliziert.”
Google Play · 5/5 · 2026-09-17

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 3082153890

Proof data

Record hash (SHA-256): 889308b1fd92fd36f81b524bb2b1e29f6437908210ebbd45bce3788fae8c495d
Signature (Ed25519, base64): TliUzcpzh4cbUso5OiMKe8nTSne+O2vPMs4eYicFgpTWjuTEyoWLS6wDI5Ii5ZW1YxjD7Rn6BWeQsFgoxpuPDQ==
Merkle root: 400ee8bc8bb6e48ec8bd5ac7598e893e5cb7545daceec4f0578b6b1d061e7911
Merkle path: ["8893245aa94a1f6f81240f8ec89add76b20a1d618c31341278527cd4ab553b17","27c5b2cba393b65e4dbfdf8453de3593b91559bcfa8b892db69851939cab670d","21600cf5302d76718fe9fd3f6bc2793b97a99dc904025cdc9fc84affb3b2dcb9","8e28ca0b72de13a1e8556b544a2d1c37a835541363e9498295684edb39d0678d","7d260cf165e5a22005c57134d6ce7818d50adf3ebe71134ed1bb44607df25585","8adc25c36ea5ba149c7bc4181e767a3eca5ae2d40ae349cae970d5520eb0e04e","8ccc783debef360b7aeef8ca17f8667bc098a4b10bde57e827cfb59add8fe8c8","fc260c63522e576468fef5a99df3bc8051f29fd6d3ac9e5c11f3649632c8559f","68ad95940f4ab2294580294de0985069f63f8a560cb2f09f8eb5ff855d122b34","5cce207fde780a1171bfeacdaf92f9cb21c513ebb3e493998aa1310b2d254318","89d06dd5dc0c52c5fa061c05d4a3f8e70a677de1156b675ddc1c220c4c4f0f25","861f5b137c4fc699a287ad904c8f480b19d472d953f1e948446f384a36feb4b7","7d99fee1fb91b9bf69a0a07755ad6d7f0fdb0a866207abe0f2ae492edc2edf2c","727572d95b19a4ae886ad98ad495d59fc190c9dcfd7deb626018d1393975dd03","02d2fd729874a4045685c92de04d21af3989963c78ad36afea7dd3264421abb8"]
Anchored: 2026-10-05
Public log entry: search.sigstore.dev, log index 3082153890 · entry 108e9186e8c5677a31d2…
Expected log hash: cff4076b1696aa395d1840cc38c433580d1b7821d298d64e1adff5db6503370b 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":"v1791175845570","kind":"published-quote","locale":"de","page":"theme:zasta/service/de","quote":"Die Bearbeitung war schnell und unkompliziert.","rating":5,"review_date":"2026-09-17","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.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 (400ee8bc8bb6…), 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.