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.

“never any problems”

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)

56540234ffc4b708b69049cd1713a89e880ae9f35734ba2c8e11611a1b1b43dd

Signature (Ed25519, base64)

p0P3NkirpAyUoKZ3oxP+bvZA9Wzi0d/DNzzwOy3Turz0a03tRxVu/E/jbSAFVh3PQ144Hf/qjRQMUpur/T0RDA==

Merkle root

2f068f3de56bebe7a575ba4a979c9244445d2350140e36238e088fa40fbfdd88

Merkle path

["564d5b09ff224b5230685238d07838cd8a12cbccc76376c9796f1a2b6a6ee7dc","3732fc1e0a6d1e5d370fb88680f05aee484dba3fd5cb4908be77c7d5ae4f42a4","2eff7944c404701dc3bedd06d7322988e20c989210abd7c66c1044d71a0398f1","9195f264411570d69d950c00bd35ffa8eaaee335ae1935b58be83db228e1468d","36567f46338760af2d22ad6514262472d6b72b4daad03a50551bfebc82fae90f","0fdf55f3b37da23e3e010297331723c469d229a5998a43c4a613051da1e8307c","510673d7d0b833e72ec6809d03b8c105594206711d2443d296cdf88b21767bbf","4c1d2812b37ba9f4fd6a0565c73d2a313fba7ad6def02a0ce2c4196977983177","343656370c9d0f1a89f109b1cf03e52245ff67c569aaa8d995334ab9bac6125c","6b3e2bce1ac9ca2a9257de122da2c471410b43cc705687d4d595ffdc1885303a","49bbbf804812620aeb11a2e2155b2fa548b38360b9d358bf90988e833f01e60c","ddad24b033c054e618d3abbc2cd0303f49551ff001beb238cabbc4b73bc7d951","d1960e2348cd4a71c41d10f1fdeb248b829ec3849e0b1a948157b58e7b767ef1","f2c4543851e26fd9d1e3721e592d66b00f142e537786e975d115c14b9cb61c0e","98191c82333f4385e47f318835e01d44ca8835262c6d0df40edfd5f6a4dc5c19"]

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":"brand:concordia","quote":"never any problems","rating":5,"review_date":"2026-09-10","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.concordia.myconcordia","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.