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.

“that this photo cannot be accepted due to poor quality”

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)

8103003e4c8c1f5607de8cd80a215906f57cc150edda35c2b4b019514990eda2

Signature (Ed25519, base64)

X9jpC3zETJArx2tp5EZL0EImCsUu+8keaZAyUg+Wr1/9mxqSCRMl8l2s9hfnQexYioyjTKT642ODC3gwqrXCDA==

Merkle root

2f068f3de56bebe7a575ba4a979c9244445d2350140e36238e088fa40fbfdd88

Merkle path

["81069552ec7f56f2ba9ff4aa4f3b508b565185c290755d82601d05d27dfb213e","3057b85cd78e528b7ed060233d0aef751397171c6403dd1a9751c9c54bc2d94e","49a354f4feba193af2ea0b0476f8bb1d93e79abffc83f11030fc47237fe9ca5b","f97991c3252a7e31953123e346ac677750d0e317379978fec1c8451b1597e026","836dd5b04859cb602718854eafc511a27f59defba66e95fd40672857d15a2091","699699db98ca0b5856ad86734abf0d0b7e887530e62d02252fc66211c42d29c3","144f9e1f2d70835b72a31c0a5a9461b3b8f01698b3bc7b5cd733108651638b5c","2608693f3b08f72d03c5e116f35d3bc405bdfff9eb2c6e5a8831b1487bb8919c","d342f88aa4b5944eb3c598dc7cade8990b4cb9f22ae78715026d6da396726ea6","aa563e3bc8c4a7489c908a4c9a45ea8864f354b6d59a6bf8cbf2b9979c0180e3","7a51da194c892d7c7959b887c83b1d1c4bad890ee6cd33f70da279e7fd92f7f0","92f17c43ced63f417fd8220fb17fa3f7f92ab71fa17571400b752b0983c159a2","c5d2216bf0003f30213891a39e09a3edafbc50505093b2ae98f61a9c067b5a3c","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":"theme:concordia/quality/en","quote":"that this photo cannot be accepted due to poor quality","rating":1,"review_date":"2025-11-26","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.