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.

“The app only allows a 10 reais discount.”

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)

35e92ea22578cc7f97ea9f23371d7fe239bb776c4b2562d459b69b3f5c834bdb

Signature (Ed25519, base64)

DP7HYeJUElzaAyJnFg97d2WFiK4Hx8zAPErZexl6si14m5pXEarRWi3XsRdsPRQF6ryoH/w07czK6VSMUy30Cg==

Merkle root

2f068f3de56bebe7a575ba4a979c9244445d2350140e36238e088fa40fbfdd88

Merkle path

["35edd6691bf802035cabc090c7490ccfb1a010821ef09e618426dc9f8603907e","7f66a84ff910dfed0e26a7963c12a0624541696a40507876a04e027d5c4d8a5d","cee2573e85d70e06ccd356452ab5eedfc2412447be60fa354c572b3ee6b8b1af","b0de0ef0dd532f43992f3426617aec68b9185562261ae55a6f64a5df06488240","7893b1d443dba3c430bca1a6f730961d6f11723bb6fc8ad5c6bc6b28305450ce","1632e65b624b8004055b2fb994eb1249d2cf5f790ab50afa967635419aae943d","1062b745be5e84521f936d94a03f6b45b8991edd5d9337871dcb01238bd2947c","ab4cc2b7c7c2e4de0676f7fa13b4a15284e05d04262a5571fbfb0b6690b6510c","b60ddc16e6704a189a23524e1c1471ca1b64768a60e0a00255ac6eaa62e65568","09b76453d38425a6062cfe43813cd596622f08887e7658ab45f8bc0288f0f702","198ec620523c93713c12a5fdef13ab3b73c38312f8c69950c0a24237f8311f64","ba64597144ad55469e4304807853557493bdf960abe724dca5437e442c223165","67b7564c01b814702c17628742fb6a8cbfa0e8a213c06511e31c90cf9f3e3578","03c5fc675733b417d9af5e071de3aba38ae7f09fa5781cbd0133ff9d4e234e36","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":"subtheme:uairango/price/discount-availability/en","quote":"The app only allows a 10 reais discount.","rating":1,"review_date":"2025-10-22","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.uairango","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.