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.

“Man kann aus der App direkt drucken”
Google Play · 5/5 · 2026-07-24

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 2681975448

Proof data

Record hash (SHA-256): 12ed68f10ad62f52a0b929fcc6b08fc109a6f2a58091a5f2eedaea2dc3747909
Signature (Ed25519, base64): hfgk//U88hFIJvmZTdE4Y3j0cxAPzwx9wffmXYErrrPfnQ3P0k2kIPKaaWBrH8RxJMCZvpXT74/x1pzqni+UDA==
Merkle root: d124e5a2af562a6c1905db0373243d4ce34f50e6bfb68d4c04dc573a8e684f0b
Merkle path: ["12eee342a561394de717e427c4d56e237d0c3c0d31f6290f176c07a5e3dac612","29773448731b1e0fd254ba523e76cd2cd7be51552c1464d480b50a8955305f69","76ca5af83036761499b1e24383a343b6c738b318211729690b730b183bcaad35","7aff5a6d5f4cdde352d9ec78f02fe0dd289fe33ff035bd012890f04ce2678220","0641f17116dc980159a2cec88e17107f86288d42ed116cd297613f87534a825a","b13d8332dbdd71afeb4802169eebfaa585c9132711f3a119b6ce3d3c9d1db612","d0bbe0828cafec9e9430dc2e989bb148b2438971af58ea5bf16a0ed2dfe380df","54f5cadff38513060c3bfb138f3a2ee78989b367148772360ea27fad337eec57","a626b00fb529c25f0c32d09740427bb78c745d3a21b456b1734333abe20e30f0","27091859d5e8fb6c37fcb4f11c178bdefe6e4628499e62ace0ed9dc6aeb09825","4ab823b934c592cf66a303bd5ffd125062f65a32fd2a9ca89bd696be1b21f954","ca8bf0a29a1f21fe85ef0a609f9932cefe7b94e8d1a3c009d3210471f7cb78da","2329ab5576d328792577ea9a2f93e5320b27f7d5e563c422a4bb8b1246b803a3","b287ce927184f2a91925f933012c347e3408a38af240311834bfc2de85b81b88","ae0a60bbc31eba7126a560c1dc0c88972f060767803fd062a22f4d1b64ebe8cf"]
Anchored: 2026-09-02
Public log entry: search.sigstore.dev, log index 2681975448 · entry 108e9186e8c5677a0099…
Expected log hash: a6874452aeddf02ea2fd29d707bc91d5b5c68aa3036290fe558d8adf2a5f0bc5 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":"v1788310340973","kind":"published-quote","locale":"de","page":"theme:acrobat/ordering/de","quote":"Man kann aus der App direkt drucken","rating":5,"review_date":"2026-07-24","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","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 (d124e5a2af56…), 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.