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.

“Standard programs now cost extra despite paying full price.”

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 2907673729

Proof data

Record hash (SHA-256)

a485706bf7f4ab99f0c42efaa55afa4909c0db7f34d02411edebcff72318ccae

Signature (Ed25519, base64)

lE37uQI5ZQhHI9k4r4TpRyuPQldDuUIH6lw4wqxZUu21FU7ZV10WqMNwzVK639MWObkJUzgIJt95Vk0iSM4kBA==

Merkle root

b9a08f9d6d76dd148110a496219c42cf3205c6f982800d84d5c85d77e9461e02

Merkle path

["a4858a0b2f995aea2963f00f569b68806902521ccc5862e18f5b0e262b53e135","0fc3d795cd48505a68a6d45d0f9fcc61d570f8fc9f92e212f08d7f821eb174f3","332e1b31bf4798b7b38fb08c7b6a10230b5b7dda615405951ff9a1ae6fbdf284","47ef35813842c487dacd717026facfbdeaf7c164dc30cf79c2e145ad4b5f92d3","b7df7c97262c1d1799c25c9418589a6c5789b193e858bd5992bb1968c2a8e76d","4a5d52ce2dbaeacef54b7c1851eb1b585d2f1623a37cd4083ef207754dc59d8f","4aaf5405076661dd13ed0576fb290544728d2e6f0e11a4edf243a93e52699d7f","9dd382ac1380f8a08a6337e734aa7d7eca0ed577c125edd7df10f240225623f5","9cd22cafbc025763dd646c69dbbd2564defaf9af6cc4921b4b5124ed19b9870c","cb85a74a28cb6eef7aa703b20ab89baa7afa01d92706b87c83096840758feb39","990e247af8afe193ae111976d0854ae6dbc82cc0fb2e8be7f20fb2ddb4d3be26","d0e82af4a03d7591b930166e680788d40e9d0f467d2d9124361d17c683e6610b","e73087a4c89fcbfd62483a37ad723e600377233e603592ed8ad92c5db69f30f2","05978e8b9ad5fd39833c65b8b951e8c80cf426334c441fa8a8bff8eb8eeaf534","4543e8b9ac7bd077d9526acfdae449f0a0d5517cbb42414f50ef930ecdb9470b"]

Anchored

2026-09-22

Public log entry

search.sigstore.dev, log index 2907673729 · entry 108e9186e8c5677a06ea…

Expected log hash

bf9a74000249ba6e66b1e29aae9d8cb95c3400dc118569a80e5c0949f3e8ac62 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":"v1789969984102","kind":"published-quote","locale":"en","page":"brand:v-zug","quote":"Standard programs now cost extra despite paying full price.","rating":1,"review_date":"2025-08-13","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.vzug.home","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 (b9a08f9d6d76…), 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.