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.

“sempre concede cupons de desconto aos usuários”
Google Play · 5/5 · 2025-12-16

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 3140475820

Proof data

Record hash (SHA-256): 27139855d7ed4b1381fa1e2bcb4ed00ce3ff55a887a15f0a5419496948118117
Signature (Ed25519, base64): oP77UfVhFllo0Cw2ua05nnZaiDYYkA6KUhP+Pp3lr43fLsd9WYZu4txXtvk9ZJHb71z+l+ibd8+LwyqrDeuuDA==
Merkle root: 52d6be1abed15ebd0724a0e1a493d5805e1ea49ddcaf8e9e5584928cd3e4d759
Merkle path: ["271376a091e849f3ffa0ce58e9dc9f4d866e11a7292c15c8ce3eb8eecb6b189d","51eaeb158bfd1aba0b83a208c93b7b92da9d0f3a535d871dc737fb1f330ffa1f","c7e0b278af7f97f9d97c3c3efb919bc7e8e9041cabb076f21391fab629fdbf4f","a10e6b8e1b47fc81120d58a94de7599459bab1e12d09a54b66b63168804ab5bb","dd99f7fa81ec0c0e788c8f388bb23e65d898f7578dde7fcc394d8767fbed71f6","8dad1d1fc01d5859f8dcf93f6d775dd1323a59ad1ff9580df1e9b1603f699d07","d8220c8f58e6fa2ac65972dcd6f61f85cb901dda2cebfacaa7f4eb75995e1284","8293ca6db0e9dbd231db1ba665f1f5394dfabc5472a77f88ba42ddc3acad2829","6cbeb04242a908778b0000499e5d42d44686a33a8b413df046dc64e1ceef7f56","2709007dd13f460c6e4f2ad55b1dde693858399154b34196655e7b17681e7397","a437720993ec4985609856ae1c85cbcd5c53dbc31d843b17c065f80b440d470c","5b7aba07a854e6a63765c93fc2c2098355f0ab59d7b4659a94baac072cc8e639","7d5e1a3da5381843d312196fd4a9f69dbe86b152542df1be09d403d47d5e49c4","71d5ef7f970539b9a82546e0bdc1b1069245bf71351875f786a78e5550da4e15","b72fcc24171828b3fdfff6be65bb433d37b8e51a187739d27a216a784d84cf36"]
Anchored: 2026-10-08
Public log entry: search.sigstore.dev, log index 3140475820 · entry 108e9186e8c5677a78c2…
Expected log hash: bb68bef30792bf00f645df162a48943f770bc3f026216a44dedb4651c8ac0917 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":"v1791431489246","kind":"published-quote","locale":"pt","page":"brand:uairango","quote":"sempre concede cupons de desconto aos usuários","rating":5,"review_date":"2025-12-16","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.uairango","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (52d6be1abed1…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
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.