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.

“It's become too expensive now.”

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 2893887498

Proof data

Record hash (SHA-256)

f1d9b87e512bce2cba176e30c5d842e916d97d3191ade6cd31105d5005d516e7

Signature (Ed25519, base64)

J7yEAXe5JY3ZWmThT4r+lbL8TawYnL7Y6nSj7OEDim/vfDm7HyIKT/HtrDIy1bYyH6Z4CqzDcHpypOOeIJiTCQ==

Merkle root

2f068f3de56bebe7a575ba4a979c9244445d2350140e36238e088fa40fbfdd88

Merkle path

["f1da119e8374d41667439120edf1d1de6fa89abb256e7e68fdaa861e73e1b6e5","4a2a02d6de59321cd33937809791f49f0ffb7a3c24c396fd00bd73949127d3bc","026e7f120247387d363638bc777ba0216b8dc94c98d18399c13d5f532926c569","ca922578f60fd40e5ea752438e47b1fd42569c3fe13fbb65fad80dd366d49bdc","089d6be0ea55b4b56722b267b10fd99cb7bf3ebcd678c6241899c93a1ba91c0c","8db49998181398bcb43d2687f12d16e523ef8739fc7a29e2bc52dd9ac3be52f5","9c20a30d54f8301762fab8f402c4c531c891abc82fbbcece756721a4e4e4d163","56dd0bbd6316de646bd2999fb55a16559f0df1823c3f8a6417e7fc658162b326","ec81fe4766e73e854b675fa8fd03d97665d989a87178d95ce6bf0ecccb967ad3","a1ed2643d0f8f706561c246751c813b6bdf9e8556e2e80969068729a7fe3212e","a90fa58de5999e596d28283605afaa5c0df6592f34abc44393d5449ed42372bd","71cd50b067ff32d173a37554b8e65642cf533aa669254bc42c5be6ecf57ec03b","34bf35d805c4f7af315854dc10a7a10ae0ea054d46dee40b360c3f04f8b8e60c","58a3dfc9ad8696e92f5fc9960e9c6bc4cc04e270091b574a948593298b33d1f5"]

Anchored

2026-09-20

Public log entry

search.sigstore.dev, log index 2893887498 · entry 108e9186e8c5677af79f…

Expected log hash

90099e0300c6e23b62e79318296ebab91bff130379d248ada57f044f77e72ccd 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":"v1789796056710","kind":"published-quote","locale":"en","page":"theme:taxfix/price/en","quote":"It's become too expensive now.","rating":1,"review_date":"2026-07-31","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.taxfix","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (2f068f3de56b…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. 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.