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.

“For a tax return that is largely automated via an app, this is way too expensive!”
Google Play · 2/5 · 2026-09-04

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 3258859570

Proof data

Record hash (SHA-256): 4ebeb6a881271dccdf0d9b49d78b13b95f2d95d4cb22247e7ac408408e485135
Signature (Ed25519, base64): cKrHrBnsyIbfh26yeyz9+U3Wvmb0mlq9sXf3tVfF+QE9pYeccVU+DdbVjQhITzOZB1QBzaZxgghMgnB7vAVCBw==
Merkle root: ca3049e83faa90e23a8ee728d82960c74b9da8080000e4c92979853b767b75e4
Merkle path: ["4eb9a7dc2c0495927db44bc122416b8558cad116caa68562e3b9822b262f34bb","8f9850ff6fce70d7a989787246e05c6bac79e5a8980eeae5c41914c9996c31cc","0bff26cb40b7aea07c70eea7d9066bdf8890539a6159a69c6429bc11ec9fe2f8","3e47ec9313d1c70a4c7c1abfb5a7a6b76c2cdc97faac2468bd4ce3cdd3d49c14","8b4f8cc47592a0660950eeb9e47b289a2f0f48bdbbcf46b7aedaa4b52035a0fe","39214254bb38a75218a768f70fc51a15b93d91456648d393755a2417572dfc68","df6f7e01ef356b50e92acf60b1f870099dcd5125316d92a29ee4163d85a0aa34","0e53d99c2713384c265793278d4ec114a2c5efa760a74be942413666f877122d","63500fe00444e1f70783d778496671dcab39b58b807ad54d6d19c464a64a7f33","0d0bb2ec4edb0ebcc703cbac7ec137015c07b0c480d8de6c20eca1154ae8dd81","aaeeaeebb6671abcd6790fe9f1cbba549b045d56e5ad28e55767265170693ec4","35160e899989ab55b338117e263269e5952feebe8ff14148b9712ce076e959e6","3eed51977edad6c2579b7e509587049321fa77487298d3b73535214036c0118d","7614ef067de1e21e5c4ed10ec802ff07f79b9dfb75186edc1d9abf343905b9c9"]
Anchored: 2026-10-15
Public log entry: search.sigstore.dev, log index 3258859570 · entry 108e9186e8c5677a8fb5…
Expected log hash: 37382a24206a9b79ef105a983cf477ccafc4b4430b1549876c44fbf5fedaafa5 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":"v1792034893828","kind":"published-quote","locale":"en","page":"brand:taxfix","quote":"For a tax return that is largely automated via an app, this is way too expensive!","rating":2,"review_date":"2026-09-04","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.taxfix","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 (ca3049e83faa…), 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.