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.

“Good stuff, and good stuff costs money”

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)

7dbd1788f77a195448a4ccfaca212aa7309495dc8847ba4a04b4c2eb76dea6ff

Signature (Ed25519, base64)

qDuZUgFuJHx82uWjLKadgjcRoh4HkhHrH4WSNsykht8a6EyAE7zQRqi/VQfNiD08nI4ukHfuUHtk6YR8yyXLDQ==

Merkle root

5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd

Merkle path

["7dbc91514ac70e4708e5cc0b142a02cfb14dd888d6e04c16c2ceb49ed67c0f11","d9681843bebfc9d5bfb69262388050d3a08297534167fc92f5582bc4a6e8a031","b1c0f161c9e8a7db676b1e5812aada8777510e0394dd44ab96e50a8fc981c6c1","a06dd4e48e7cadd2f8c08bde36653d10d5ca2645bfc89a7e4ee4313352c97408","0b1deb013cb8d317fd1eade94cc9babea3c356869fb7f1330c490a9b3b8e3669","f2787a689e4f49bbed0bd08c89542e69ac1da845821eb6f75bd3c362bf2ff9d7","d17ac0940c510aa404f4f5fbb16b93eb11b846ba4e885001e8338623cfdbb051","4b8d36929e5ac3dba3999c946489894b74a9804c0fb63578d521c9cc97db9c28","4d3a4f6465d71241bae1db0f47ab928578ea02e804f29b5295fdc04d636ae4c3","012cc4384bebade8405ce174913e8ef992b900bb17d20cd3c75a7c6048303ae8","d03ab0d5af0525317d7b078a57c0581a8f161ef990f077db88203a75760a9b38","39081e647d66856f4efcb9e90f0cfe2c81c995dfd64a8921978cee855362e1e3","48bc5ea5434a32841beac8d9496d2692095edbb7104396574890154d981868a9","f5d1cbec3469173c409764ba850b613628c88020363ace8f472e6f611d605e0c","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":"theme:zasta/price/en","quote":"Good stuff, and good stuff costs money","rating":4,"review_date":"2026-09-21","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.app","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 (539721061967…), 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.