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.

“O app que antes era gratuito, agora passou a cobrar dos usuários”
Google Play · 1/5 · 2026-07-13

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): 8231e19f5c68be1df908a0418d70b4044c960638c66b9e6a631b970ddef88bcd
Signature (Ed25519, base64): wM0vi8MSc8lCCS4/2pY8EVwQyU+8NjmxWNhaulFnL0KYA35Z8elqs1Yhc60JPOwCVsipPsavnKAg5Av9cU73CA==
Merkle root: 04b39eaa56e1cf8f75dc8eac18bf6942167c8418ea731a7471223f0be60e3e6c
Merkle path: ["8234f791ea3235c5a09f99431f3729d6464d30338940583381882041c6cd1d60","1d551d6a16052e8b6b9ec839b030bcb6916ebafc486e4c45cf447d385116e382","e4601455186c2e84bb5b7bed105c231f31a25dd22d2945588827e016b355143a","90e09aa61e8815ad53711a48a4a280b5f4f26eb807ff1ed4e95583632b1e029b","8c785e4f2600b004f7c0c941fd9439d72b9b7c8a826b4df547fbadbf68c116f0","8408c3af6c6c086f8ca25ac4d276de4a80055867ea83ff137538281d0bdb2801","734e73dcc02884e0e34cbe4c47a996016f8676b4312ef470851bdc397846857e","a3505a20b110c9e55635488821c2abe387c73d21c06436afffa9daa219fa060c","765656ebcf30cb9d4844e8bb02b5626adae963c218172895ffa16c538d92e31a","11151d4b70e179ca656b560e761fa84df3e957f1f398aa01171731048082b13c","9ed21073134c6af75a4a27391a91501dbc430d2043430db149625343dd6ebda3","e651c62e99d40f4b39a35a595eb8e69bab534ed1159ac9b7ae46954f2fa9bac6","2a4eedd2e6770f347c97e6f4e61cb85be4af21173e299d5507007ad47305b4c9","c5cc7ab668acd70733708092004f0624164aaac2bfd55cacefad6637b26146b8","695aed3f647000e14ed985f8c4d6045987ffb913dd12c814d6f9a495d4d25fd3"]
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":"pt","page":"theme:quero-delivery/price/pt","quote":"O app que antes era gratuito, agora passou a cobrar dos usuários","rating":1,"review_date":"2026-07-13","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.