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.

“Dies ist eine großartige komplett kostenlose App.”
Google Play · 5/5 · 2026-02-18

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 2524617489

Proof data

Record hash (SHA-256): 0b2f475b910c59b4b32d3bf12964299d7a9a58f7784ad954cc97ee571f954205
Signature (Ed25519, base64): QgUuUNNpdrhze60MGQWZbF8UN5y7Welci7iEKgqFM9WaQeh7okJf4QcHHegdUfJbUm/KSRbRDvc5dvvzW74TBA==
Merkle root: 5c4849a28e8624d6f6d3204e1f81a6b24f2188b6690e8b122801054617ca25d8
Merkle path: ["0b318a844070544cd7e082eee90208e64274b16775fecb6ae3f8f894df367721","f8dc67f6eb3ea4ca61beeda24198068600d39175c617cf4fd41211c89d51024f","5f33c349b628445236d4dbf32eae05d2ff9ba4466a779a795f1bc07a57b73668","905bc3f5fbead6279409ec8b18c09db403a7abe69007e675609e33a28e3d1e02","d713586f61e63961209ab9f98e72531348d1d473d78e944e05ae50734880f6c7","77953c55a2cbe9153197cb926e30a9066d12b221578aacd25162cf6f8fd838b2","5cfe3a6ba03662b595ed4d9d29e1709f487a1b538ce145a2d60219d8fcb4cd72","df57243038977f4412423fb415351d6812146ac495e9b1da6765ccec8c3efa8a","0809aacd32fe3eb8a39c1d2fd785a5b415ed798f4d2cee527ebe4140d87342ea","0e5298d35649bed24099ac4ffa626d4f0c235dea3a39ddf43717656eb0e46e79","8cef1282d89fcd10de1a19b4daa5e03655fb959f1b6dc4e7d26ff03551b4f386","d4188d2c80932f475c810ced976fef9d816f34d9a371db67d8b88d0e2c021c71","294fbe7fed0fa3af8e60ca01a3a05891e9e1266a19028060f205705712eb6e96","9693116cb745ecfbff942949993950a2efc72f3f48b394aa6516ac43c745a9a2","649f189ed3a422a3ffceae7f7673f3e683a1fac940fd27a4d89bce585dd48e49"]
Anchored: 2026-08-20
Public log entry: search.sigstore.dev, log index 2524617489 · entry 108e9186e8c5677ab139…
Expected log hash: 2051fcd76f2ba790414bb1c15fd4d3d064889742ea46f8e55b5028f1f571c27b 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":"v1787193158162","kind":"published-quote","locale":"de","page":"brand:meteomatics","quote":"Dies ist eine großartige komplett kostenlose App.","rating":5,"review_date":"2026-02-18","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 (5c4849a28e86…), 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.