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.

“wunderbare App, einfach und werbefrei ♥️”
Google Play · 5/5 · 2026-04-18

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 3258859570

Proof data

Record hash (SHA-256): 0766a5cd0178be8a14ffad2f98d38d79d51dd30d313f3c5e9292af589934cf8d
Signature (Ed25519, base64): UVbiFyjPAXB+z6cLBrreclvk9/NCybueOh6UqNpM8Nbv3peusoNe0Mh6PDk+sT22/69wJMsN6DNnROWt7OzrCA==
Merkle root: ca3049e83faa90e23a8ee728d82960c74b9da8080000e4c92979853b767b75e4
Merkle path: ["07657470b1301833aed4578db06f99934b00a7acdf17557818c1820789aa8899","7f84f9b0ef09e9418d29d5ad6f426087ce564314b1d62fe182fcc00a20e7a413","7f519fde1f420fb6b31c12142b4deffb54e58ef825b8dafa84622738226ae625","d9ec0a7a76dfb7d50f3bdf62a7ef61d197d5125ad96a321a76f590ebbbf6aac2","35a04100454e136e6f526d09980f28a2160f6a1d2b464d1468b3acc42d9f0622","cdf985db25ede1893924813d4bf29433d9ff5d03070fa8d39691c8547a9d3245","f737188216485c460f71a0296c2ff985efaf286e865a702fd90dfc8fb0533586","7dccbd0aa2f42b163e5dd209cdbd817d612775e63b6205894a24806df30c7792","84875545343b213ebb0738369c6ee7ae2353b85732488bae8719466503bb3305","b78ef6842a4b48ba08130dbe754cc7950c26ef6c0a22ca1224f1faa808e3f0f3","82910a5026a7e6ca5de409e1fec5e3a85e26dcb97a04bb4734e3b891249e3f3d","c528a565399f1c43ffb0fc3019a2c2cee2d7413a87787555bb34d4d613541976","3eed51977edad6c2579b7e509587049321fa77487298d3b73535214036c0118d","7614ef067de1e21e5c4ed10ec802ff07f79b9dfb75186edc1d9abf343905b9c9"]
Anchored: 2026-10-15
Public log entry: search.sigstore.dev, log index 3258859570 · entry 108e9186e8c5677a8fb5…
Expected log hash: 37382a24206a9b79ef105a983cf477ccafc4b4430b1549876c44fbf5fedaafa5 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":"v1792034893828","kind":"published-quote","locale":"de","page":"brand:meteomatics","quote":"wunderbare App, einfach und werbefrei ♥️","rating":5,"review_date":"2026-04-18","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.meteomatics.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 (ca3049e83faa…), 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.