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.

“es ist echt step by step erklärt”
Google Play · 5/5 · 2026-09-19

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 3258490685

Proof data

Record hash (SHA-256): 3d6a411ec3b39be7a84b75f5fd7c94f26d2a7015de2ca5f5acfb0e9acbc5ea1e
Signature (Ed25519, base64): jBh4HJnPPnsOF5vqfJHjsQCt+wGwIaj1hqAs//dw4tl/udv1qWMzIUu5XDJYHhaMerpneQlyXrdaboN27RGeCA==
Merkle root: 2824dde473714ae3dd30e88823a625346b1b80d9a55db059d813071b78952b5e
Merkle path: ["3d6c9786048a7cde4bfc04adc3d6705b5b4f7b19bab5216031e6f47b57b14ec4","4d26df15fc79424f37db886fff34a43b2b2ba748f1834b3244d19793d7d72235","a17195069f030f15de5a4adf2a9da22da6c7c9d31cd6fbb16807ee5ba97c35d3","70f5d358bcfd506730de69880b120c7de4d3f9e1f33db4f4f3f05481ab759114","f975c86ff0ed599127ff6f996b720e053459409ce309a736b73c89e8f46340e3","98e25b00bfa5cb3bd58e1b8bdf20a07cef7738166169def5931f8c7d53d12b86","0355481b2b6256cb9a91cd1660ed7f2b383fa3f81a740f6decd2fd6494012aa8","58c6bcd54e449dfbfb77a10830f1eb446589db4934881a1f0c3eef1436347a60","8af033e3b2e890f2f2bb03917abfadf448102bdba48d7379af07e83c6b080b79","15ce208d70d2acc0bf0b8909a0a3f3b4dd04521097d7459bdd0ba90057050948","d50dec0ed530d421c6de04129aa3059e77a7dbeee16755c8ccd48fc4717e739e","45a404446e6a7688fda181d2102be2ef7f2929a162c7971ad1c27bcb87791346","592828a30de1f38ebd3532fd0b7bb1288bdbe2c152bea05374fc6e7c174f1dc0","c0fc8298b38da3131f46ba94c60b50a7d3f5bfa16abd1c4c451dec4dd9f28f96"]
Anchored: 2026-10-15
Public log entry: search.sigstore.dev, log index 3258490685 · entry 108e9186e8c5677a9f14…
Expected log hash: adabd3d63ce5c0d8fcac6f6311f5b010ca6003db409229d5e92687bb33c3624f 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":"v1792032587528","kind":"published-quote","locale":"de","page":"brand:zasta","quote":"es ist echt step by step erklärt","rating":5,"review_date":"2026-09-19","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 (2824dde47371…), 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.