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.

“A huge help!”

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 3240422411

Proof data

Record hash (SHA-256)

39553477aaeb0143fb1318d3c1b380fa96b6602bc925d206a688210ed36bf0e3

Signature (Ed25519, base64)

Dx4II89RGH8plnEh/eSrYZdiVA3U7m9foWslUKoHHrsMXABQU89Are20eiK0aXilJSuDlVWcke+FlYvsn/8yBw==

Merkle root

825dbc6ca55f00c6c81d8de0f7a080bad31b79dfa0e721dee7ded0e9c294ebb9

Merkle path

["394d2a2a9ea607f9bbb26f8d1875501df8aeee148e4f55995beecb55a4e89534","d0c49f0e0fc9cd70e4a865fe66f54ebfbdca14943d4965d6f933a1f7856b1359","ee507f2793a07ed35ed057a9aadf6f6adf098a67b25a84b2f8cfcbca694e9adf","65214bc24d73ecabacea795420149e98a6cd72122d1e8a66ffe87d71d66a019c","589941b885d22193f0e0c2e5d06292682b55592f90fa912e5c4eda98f555f2b2","fc8d02c44743306ab3a4a20642e55783c6d2a928efa2d46aa001729a6250d728","367e7f15cdc18e37a45154d792f5bf1e98825a4767fc92dd88a1b3dc89a23b3a","5f1a09581365811dadafdd50b4c1f71e511554973e773d8b38f5b2d1f612e3be","a70fda4f6789e637af737e144e375d8ac6d1adc3c848b1f33b8a6290df8e12ee","511313c4bcb370622a3c70c8399e6d7bdbf0e0e94e90f87b4319398f8deac130","a1e59f881d6bfb0bb60e505cb797755e7e38f570bedf7bfe58f6c8bf00ebf5b3","0526b5b7adf235fca820e27d7e9bb58328407474fe694c840500fecede0e4f46","1e2e9420d8c4747dca96dc342727525f4c47cf2390ef42ad69829fe37156235c","04c4bd8a9ef95bf5648c9d023612bd1f2446e83a6dcf83e612d031a5ea30e90c"]

Anchored

2026-10-13

Public log entry

search.sigstore.dev, log index 3240422411 · entry 108e9186e8c5677a0ea4…

Expected log hash

8667b0db28913263098c19cb6387cf64b6d68b1b8f2c4242d3139d96cef5da0d 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":"v1791861703078","kind":"published-quote","locale":"en","page":"brand:delivery-much","quote":"A huge help!","rating":5,"review_date":"2026-08-22","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=br.com.deliverymuch.gastro","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 (825dbc6ca55f…), 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.