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.

“mein angebliches Abbo wurde überhaupt nicht von mir abgeschlossen”

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 2543154575

Proof data

Record hash (SHA-256)

a54892cb3d911d29ca98e1e89b3e4bb45159115c96dbda9d33b545904d817249

Signature (Ed25519, base64)

WaLZuAaa/o3IrwXoswvsDUaNABcuzMlgeE3guGd+NqjcrRN0/St3JdLeCBvjmKJFDdYmD8ft6/YISuZ+z7bKCw==

Merkle root

9ca8f1c1ad15a78206ceaec922c537c0b0ac598e12c9c25877f5e0e19de38c6e

Merkle path

["a549b7ed634c736077db0850fe42c99a78b7d49a9b0af9ce136312789f869d3d","f71cba7a183153883d4573a7f19b6cb870ffc48ff4873c8bd15d4277425f5155","0fe71d09a4b418d2096edf931013f6fd22ea60bf724473b5a563a9fbfbefeb6a","8890f6b1b9fff8124ccfa3199c296ae7f3eb15da86b66c644d6abebf06d42926","a908a225426812f17e5bfd6a032b1a780ce34b8a3049418809b87fbb5ea0e0df","7ecd714a61f33605ce7af731b3c6252d3f65e89cd3d4337e9f1aa9ac6d478ba1","0adeb22e11f18ab24aa084fa10d56fbd1d29fe60386f51e46ecfa330642e7185","9d3a93ce30d655f4502d6867a53331d69439af33b9d8c8ef7a0c9b9e03b52ce3","4e86c101b4d959440244610fa55ea2dcd0d42227a0a98836fa62820231b5b31e","d4a3f59f8dfda49f6e6a036fc7ecaee19fb503128e3e4fc5b3a9a73400c5021f","7bf32f5ac83edd1062ea783a6f2ac8a78b9f8f4337b6461801cf15842cdf5b05","a9ea77d5f2bcfb13455a160556f562caaf5c20739b5604885e61d45e6a7dca1f","e4a5dea6d8c67adb176d3835082d28d3cf13af48f2f96d2355bbaac3ec864590","bb86c0787e05591c350bbf95c58c2d99f0ba679999db51dee6e8bbec88a42a61","deb69ba818cac6d60ad262ee5febe93ecfd14e4c978778af299f82ef8a69b934"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2543154575 · entry 108e9186e8c5677a0eab…

Expected log hash

0099eed9d12aa99aaa44ed875b87ffaf90c46527b61dfd92cdd4db2c148aef65 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":"v1787284115102","kind":"published-quote","locale":"de","page":"theme:acrobat/returns/de","quote":"mein angebliches Abbo wurde überhaupt nicht von mir abgeschlossen","rating":1,"review_date":"2026-02-22","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (9ca8f1c1ad15…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. 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.