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.

“Fast and easy, do it with Zasta.”
Google Play · 5/5 · 2026-09-20

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 3198225546

Proof data

Record hash (SHA-256): c3d4cb8ec87115da5e4fd7119cb503516aaf2cd3c88f15508f24f796b54dbe7a
Signature (Ed25519, base64): eLiQ1gfgWpFyXn3MlwTJ9FcThWKGp/lWKHAFjhGUZXHQ0OetoHYbmC4fk/ktPJzkSCQoQWkEQ4XrI9We8hv1BQ==
Merkle root: 12764493a64961d0e0d426bbec64b837c2e35bc22a58920afcc56db07df6e8c9
Merkle path: ["c3cacea9c5e84bda09c9aedd8350a6add24f3ab7acf0e89b3b8c5640ad1e3c0b","0e5a4b78fba052d3b8c8ddb4f0cd5f22b77dff84a7c7b8282cba1fb25df1ac5c","7f40fe4ab2da80f825567b549ee8ea61e742fd1bc4f486cceb68b4b7d6c88a86","3f4c1840f598ee6622996c6d365c3cd8e8f0f31c456644455932b7cc78f674e1","3ba23bd094aedca0719eccd0ee3e6aaa8190caedfefd583b6c3ae90839b0b619","61237e3077c630723d53d6494c13ef253483c9c13647ace6fd3f17afb1792c7d","c38bf2530018c2a7c1333da7dd16d811ab15c8d61b89d37f5e1335052cf18bdf","e9f9d4c6b91818cc64cb12cced1a0b54833a3678f596731e645fed294e85d681","930a70e175939c3f42b5e0d7bb3df19b7e78b5565f67ce94519b081c0e327e27","2cb0aff6237e094cbe63209a1cd2a0472e6509058ba662f07f0d431af17c7131","c8de64360d91c8ed5bd6f08f130fb541bddabd57d16c0d9ddeff16391dade56b","14530f8ae31ef6e50f8912f7d1c899fcd863045fbb52038c7b7994e2215e8cee","cc58c5fe316b032c5c64bb22c09f1652eae9743b0d6035a1a044334363577839","1668e2970aa6114139eeecb92c8b629133c8dbefbad092994a74fb7b0508377a"]
Anchored: 2026-10-11
Public log entry: search.sigstore.dev, log index 3198225546 · entry 108e9186e8c5677a10cb…
Expected log hash: a11b46fc63b94f32c49058752856fbdc4e92f7a41d4e67238e3563657fcd50e4 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":"v1791685609571","kind":"published-quote","locale":"en","page":"brand:zasta","quote":"Fast and easy, do it with Zasta.","rating":5,"review_date":"2026-09-20","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 (12764493a649…), 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.