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.

“it's good to use”
Google Play · 5/5 · 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 3220996539

Proof data

Record hash (SHA-256): 2ac71cbf6db92fbe95c5ca99d7d3e56d9a59e1248e5477affb2c09f86350597b
Signature (Ed25519, base64): i7d0kNGDOdwn1LkjkvtrIrCytsBg3H0btXkOM6B1IJmPbhKdZ4UsC3hQax0sR34B1nThNsFzhL569+btsXQHDw==
Merkle root: 1b0b408c7cf60721bf3cca50f4b7f268b0858a42fba11906e486c6694252cb22
Merkle path: ["2ac511f7bcbdd2912381ff97510e24aa0713c03826923d41dd354fd3b2f1e9f9","264e17d10601b261eacffdac3515a0a4d0aa0ecbde1d25edfc309c0a7e6c8210","89b092250e804d80272c6bba2c37e4dc60f418bb7983a8a56d8a1790e7f286bf","99bbcb3730c94222e36139ee278353a08145bbca5f6959e3ba44b40f7be331b8","59eaceb13ad2828e0e7d2015b6e906a6a3a45e1a020d30f05dce46bfae6c24ce","69ffb62aee52c392b6ab62603655122e14369da3e59f9c0b23d8987e5d429aca","11c7c3a3813f01b3a61bf4e4cba251093696801ba7f80324740e0b6e6b8a8c2d","7996010534de245f94588cb51d499b8d7d4d8e470569d9f5d23082a7b313a936","4370211d49f9d019ed43c30148d811a8d3075d951401a6303840795e492858fb","77f9564bed074ac2d2d3ea6f6806c04368e442d5aa99fa94e3807e1b4a755a07","8501213cff22bdd65042463ffc599eb00a94c6bbc397e02df36434f1645a4b73","02a91e84dd419fb91142eb41d22148d6364f823a8ddb534904911b59b684dde2","bd64ca269edabfbd30efee623435236838862399942a0d08ad142d3df41d1142","8547750c311d384cbb1a945300d6b6fb4f4bd2b78af7177366b3baa4b4c1e724"]
Anchored: 2026-10-12
Public log entry: search.sigstore.dev, log index 3220996539 · entry 108e9186e8c5677add5d…
Expected log hash: 00694de1434e648cba57bf07fb439ed90ba501083441667555bcf619bf5edce8 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":"v1791779426071","kind":"published-quote","locale":"en","page":"brand:spotify","quote":"it's good to use","rating":5,"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 (1b0b408c7cf6…), 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.