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 pretty good music streaming service these days.”
Google Play · 3/5 · 2026-09-20

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): 37a776f9e47b3226b22a8de49cc957455118ac07c089b6dd46e59b7307dedb7e
Signature (Ed25519, base64): TPW7eb0m+w2on41UaWByn002TZyNKg/gwuRMeJlRWyD6ozGMnU0vLWbMh0XZ710VsLFhUuCxEpUNIkBGWJGNAA==
Merkle root: 825dbc6ca55f00c6c81d8de0f7a080bad31b79dfa0e721dee7ded0e9c294ebb9
Merkle path: ["37a9d7a0608f56a7b7af366b9b02eb0d23cbeafd486c1adcbbee494ce7248585","1c1d845754666bf67984ed37a1673b53fc4dbc2332249dce2df5cf5f611f075a","8ffd32e3d128137afca80c1db0f368d445c6615610288c9f7f0af2c96af54d3e","4dc06c6c1d808a2e5c1ceddc3272e5cb85ed2e4fec5bb01b4bb56cf52f51372d","087487ca74e7cc20c391ade144a14bdc2dfe64c1017c8492747049d838fd3aaf","0e7feeba088ae31a901a2ae22fc6bfe3a23cea10b6cb9aa498479afac0571847","259f87271c82c79ec6e0f8d2a51293adbf2de6953f6266386ba9b138c7b1c954","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:spotify","quote":"A pretty good music streaming service these days.","rating":3,"review_date":"2026-09-20","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.spotify.music","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 (825dbc6ca55f…), 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.