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.

“Great coupons and discounts on grocery items!”
Google Play · 5/5 · 2026-09-15

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 2890214870

Proof data

Record hash (SHA-256): c5037b8edfd5a5e0d8b967c48410cd15fb2b64924146c1075a1b8e3878150428
Signature (Ed25519, base64): 7l2GPgAkaR9E1J1Va8CEoJe6pBZoLG6yr2nfy8RfZJOTWZ8oB/xgaa9j/0Qf+F/zAt0Wt88FaBT4SN/m+dJIBQ==
Merkle root: 04b39eaa56e1cf8f75dc8eac18bf6942167c8418ea731a7471223f0be60e3e6c
Merkle path: ["c503eadd61303b66f4cd79b686e4629149de38a0d3cd02eef84fa8c4295367db","bc24a432f188d5b24b2a1773fcdbe8c50a9bf4d15b1db6162696405e968fc231","99e65efe78b785f70152e89ff9e359da85ca1e5ab78fad44058c200464cd3ceb","ff282442fc4c9594053ee48c73ad531a4a90e80d8b072d406f669bc9fe8ba4d3","0d95cb005e6845caede4032d2505cc204146dcd82b30c4be910a32f03adc5c78","69363df9f67164d610a321d1178868c0c234d3a15857d0c9305cb4439feaa79d","d64371180519042a52e634f6a0bb2b44cf0255561a7aaff652735d01992ed93b","265822ac59723ece87bad224392b15ec803230495f6d599160f80e392a2c22e9","47aaf81a5ee0fa91971fb75c102578087d0bbe447ea590d244d9bbe539d539f0","233ed9169e936df2e9370a35aeee3a82336070f8fa0bae2e1306e4fd78cea852","85fd08813216532cdb7e65deef6a49e87e80d6af852f71904fb08734524db376","1ef1a9718be3c90e98bc2f2ad1b13dcfe1b53f48fcfce25ef31cfaa0adba4581","77c7b6988870e1e90529e81d4533964f2663907157dc1c87878656cd074ac437","8f074eddb198349108c1e544aa98c8c80e756f627b29b4943cfd74cb3331adf1","3ba88b0016422cde319348a72d81ed01eacc4bd155bae80b5c4b6ab6d98a745f"]
Anchored: 2026-09-19
Public log entry: search.sigstore.dev, log index 2890214870 · entry 108e9186e8c5677af53b…
Expected log hash: 1f3acef0f063246e051bf412e40f4279cb96ed334ff7b0647a13320c1b31c4fa 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":"v1789722569406","kind":"published-quote","locale":"en","page":"subtheme:ifood/price/promo-value/en","quote":"Great coupons and discounts on grocery items!","rating":5,"review_date":"2026-09-15","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=br.com.brainweb.ifood","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 (04b39eaa56e1…), 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.