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.

“richtig tolle Wetter App!!”
Google Play · 5/5 · 2026-07-06

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 2684249937

Proof data

Record hash (SHA-256): 0a9f1887f92ad0a1a8a825bfe1cf856c1ad848cfb5149adb6ccbc60da49d018d
Signature (Ed25519, base64): n3Z3thGMQyVM8Cd9sgnFJmwWTRSznpIPTYnZuE9RW31z6stSgu+5xhd5vulsF9led1jcMdTm4oLuh14lCijkBg==
Merkle root: 57e60dc521a4ab8ee39747670ba01310ec9c3f92c64800e03425c0a645a7f8c3
Merkle path: ["0a9c061d9c5400696fac1a217d5d87a734d7c39940bfe9dda7fe4d04843e97d9","fbd5ee36be3e16ed7cb8737efe1f171b20691119482382c88f23589fa41e92b9","cfc9939eeee5f7506fffa893c43d49ac22749734dd2b73f5836189cea5c12282","f53851e7dd174e69a06032be6b8eb1a83d9d8057e2edb6c6d19c442813c6eab2","9dc2aee630a4b363815449f43b399876ad70141528a1a821edded2ebfacd174f","e4aacc894892f2c1dc6445941ec83aed6df002a77e67cbd0faf18a1c51c31dfd","8073842429a83a7d8b330f58ea090eefbc88bb51985c94ebed1ca8d1400011ca","6b12952051008dc894640144d00b0fb0e8e01eab4223d27e829b0f9f7e0377a8","fe1ba3a251c937404d732c8b70bd7d668fadd05c0e77ec3b3cf3889b00cf68fa","e29289300e7e5fb4ab57148d1f6ae3dcf174621ea612e26fe246750d901c4882","727fd922a23c440ac2a60248f361a2b3785869137989ecad4faf9b75cf8b3fda","93c63a80b8e3489d0ab8339ec4503845df462143333ed3d531894d0e245f4a12","fe5d111587316ff31f5b38fa29f046572eebf5a2bd99ba16667a173d27f92a5c","dcda2bb48f4a1ab26f6126b1aaafb184e5f8d3630133c0cad42caf115918a81c","a1d5535cf9f405ffdd99d322e20ae6357cbed1419e88c64471b565623f0a674b"]
Anchored: 2026-09-02
Public log entry: search.sigstore.dev, log index 2684249937 · entry 108e9186e8c5677a47d4…
Expected log hash: 46538ec60065603bf54101fff011eda05a02a8a062bf118596692399059b11c2 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":"v1788336087966","kind":"published-quote","locale":"de","page":"product:meteomatics/weather-api/de","quote":"richtig tolle Wetter App!!","rating":5,"review_date":"2026-07-06","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.meteomatics.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 (57e60dc521a4…), 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.