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.

“Alle nützlichen Funktionen also lesen, bearbeiten etc möglich!”
Google Play · 5/5 · 2026-04-21

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 3140838741

Proof data

Record hash (SHA-256): 14a921d541adfc12b3226829a71c0aaee3e6f89d0a49885d71ee3a8badc1aea2
Signature (Ed25519, base64): Pc0yL9Yh+pxjf8bo5Y0TbPV+NuX5zuVruzbLM/w0HGbOe54P+9Oc5mMCnsQJuGNttffS3wFZXLHTW4nKAJruBw==
Merkle root: 68ee5f8618d9ce1aa33f2cb5b6f3145b5f909a3c35a03ccc3d10e979b2f81082
Merkle path: ["14adf3dcd453932182b097576a5acdad9ecd5a4b665f5328b8dd5a074428b46b","7f24d8e18f3090d2c5c385d5d50e8797ac478cd5ff44ce3c4709691f3ece4d21","7eadf41bab07d5e4f039a09bb818d1735a2c6d9556f7140fcb43a7af3a02c698","0aa83970e2a5030d1ac86152a783e009d97c6c5db473c2f28f5beaf7b133a6e6","be6d23ce781407e7f0cdf09dd507265329da53b9e8756292c0e3f63f5d83dd31","71108bca6ea99e4f7ccd47f6bf919875f3af3c1bf78c14bca1bb21beb6964e8e","f03a7f707ffb64f70beb41b645251c2fe83697c74d262bb8a636f38eecfd096d","6c1b1d5dced5487d766da807c8e73e12ba5df9d1426ed7a26f0c37d7018d6992","2c4155777fe8c02c7f04a92ef8828c42eb89bad8ffca928e99eae18784cf1781","a635b5afeb76ae62c8629150a6d97ed6dc5bf3394369e33130713e998dd3a973","602c80579397f3e29d22b7a2e895390f434bdabb142c9381105992aa81ae5341","43121300a82da93d01b3fdc8bb17f432c227d8a918d31c79ee0d99fa14f29075","e6960377f92ebdc1b41fb37d3ed0decff1e5fba5b62ad653e7be0f8408d1c6c3","e66299710f80b56c392136748910ac59d79a991f3e479ea8a96c5c23e200aa78","418554fa0ebde54d6cdcc03145c7126505ed96d3734e8e7ae56dc0dfd8ca0a2e"]
Anchored: 2026-10-08
Public log entry: search.sigstore.dev, log index 3140838741 · entry 108e9186e8c5677a4791…
Expected log hash: ca4949400cf2d29b49789563ea2e672fc73762380548d6fd65398e40c0d98728 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":"v1791433229105","kind":"published-quote","locale":"de","page":"brand:xodo","quote":"Alle nützlichen Funktionen also lesen, bearbeiten etc möglich!","rating":5,"review_date":"2026-04-21","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.xodo.pdf.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 (68ee5f8618d9…), 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.