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.

“Fast and easy, do it with Zasta.”
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 2948162176

Proof data

Record hash (SHA-256): 31e92cb5eb449eadb1c6a81a4262979e4fdcbe1b8e168fbded2827b9d3aa7b3d
Signature (Ed25519, base64): +4a2hERw7kXBWioK+X4G2khUZFK/8AvzYkp+/Yn6H9PtDhPZKzaFb70bIjy9NyWKoLEsr7nKw9WrwkHDrBL9CA==
Merkle root: 5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd
Merkle path: ["31e6ed87e0c34b95e15515a37246ba28ad1e1b91e982576156f76ee33991f82a","ca063ee017435bd081d984af721a75e0dc66e8a14e959efed61141ad473e661d","449d44b5d8e17445fed8d946cd42ae199d5b2a4669e0ed19051ecf7ad6301b22","c9a49b512acabce1ed201e5f9d1f4f8792f14a00e63dabc2cde942241bad24d4","3cb6b1ef9abbf1b2bf0f8549289433ec2f666cd4052af87e7824cef3d805a1c3","074459203c94d58391866ca7956fb7c3f7dcbf6398a94f2467ee3f5236284714","bf761ffa19032866ed562ef1203577bfcf89cbf682379da3133e333ece75c923","98bdd5c5b6f4c32175092ff90526e61f99a20fc6502dd94f08089d97036a737b","bf3afa3a75d2b0cd4c3f29386ac2043210e63b086d0ec54b89e28b9518d9d743","7787f0c984afc4e5db1ff55e625db90d5136a21d8e5b30d04323b5245036afee","061142187b170e06cf7191f1d474df812f7e74bd009127d14ef717fdeb0d22d9","9fda34f84101ef4835d243a0e65146e359d04cd03e433c76a0ccdc532f415244","cae21a1e2eba2d9a014f0d727cffbae7abdac416604f893deac5f07eef84e3ed","e892ec98bb605644ecd2848bdd788a136c626ca940d293df8f2f1ab99110b2e3","eb97a4ce74ce5f5fa16f1703481b35cd770316cd3d34167e9b76f4403804f896"]
Anchored: 2026-09-25
Public log entry: search.sigstore.dev, log index 2948162176 · entry 108e9186e8c5677a61d4…
Expected log hash: 5ff8f25b7934b5d72d363d6805344624efba4d637f2c851f11783b259b9d81be 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":"v1790226990092","kind":"published-quote","locale":"en","page":"brand:zasta","quote":"Fast and easy, do it with Zasta.","rating":5,"review_date":"2026-09-20","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.app","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 (539721061967…), 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.