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.

“COUPONS (get R$5, but shipping is R$5)”
Google Play · 2/5 · 2026-08-08

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): d8cb5b8deb3ff06ff2a458c7d3ec38b64824ab89aa2dc705a93a706e2d889151
Signature (Ed25519, base64): VU2b0l6yky9mY7bA70JyA6PaXGN8ceFb8eLbX6C0XSXG22tHcZPAXe3f6P+8bMF31kg/3Co7N/ASJC+1WpS7BQ==
Merkle root: 04b39eaa56e1cf8f75dc8eac18bf6942167c8418ea731a7471223f0be60e3e6c
Merkle path: ["d8cc0490e2e2a168fb15736482d936b684ce6185d0e39347ee93ad7bb6efe114","077689124f3a5841d012211f56e9409455581952a41a115a6812c4ad652f9e4b","44d89b53d64f82606385d9dc86a816db5a16078dc1ff33216d519e80097a5dac","bfcd8a0a8ed343a7aadb526eee7eebb0a1eda317bde86a54519c843a7d477428","62a4e39ca744abb7e8ecf260331b0386dc17d6ab74aee4f6c15f6acf3bf8630a","b388f05d1e5faad1fdb237ed85b3ee2e2939d55cf8250da04fd0b014f12f5ffd","6416bb5b10a3407f0168cfe2921d831028aba15e4154d77d6dba668f3bc5fca1","f9181e0a3768ec6e06b17f20b18eeee6acfa52b0dda86d062ae56cfe9b554958","7b01c53f11eb621007cf5a78f5e696648bb8b6aa51061ff3717182cf652bc251","5edc8cb544f574ef56880a48af86f9a95fe15395b97a57887a553fc6becf9627","453fa27ea1e65909670d992a4fd0e0c95973a81e842bd69f544ce306a20baca8","7d8dcd3c2c054442ec809000987dc404e49a1634f4740debd1444d1cd270d9a8","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:quero-delivery/price/few-promotions/en","quote":"COUPONS (get R$5, but shipping is R$5)","rating":2,"review_date":"2026-08-08","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.querodelivery","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.