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.

“Super simple and fast way to do your taxes.”
Google Play · 5/5 · 2026-09-18

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): daad4450c9bc43417540ed4baea581ea38c885f4578209779d39a390a72ae359
Signature (Ed25519, base64): sxzOfifKgg4toMZmXygppgY5ijnaKVH1P4Sc5su2tIMRzPCDdJPVDD6HZJ9p/G0NlByqNQ7gWlzcz2YEdpwQDw==
Merkle root: 5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd
Merkle path: ["daa8952c739d8b48821c0d24764edfd64a3f9682cbdd8f8832056e8e33ebda66","81a4504d7a359d550a553c08e9d27fe35976f9a2db6db8621fcf1714fc4ef455","f3ca3c70521caff0186f13dad156f00678a4e31bac56cd64035f23b32a0208ca","943fa1e4d0c20d5539a3b72b8ea0a13a2146649279f189942baf1d20b11c6720","45e93e9d4d267b2382fe995734d2c2c0122425aca17eeac450b2f7ffbdad213f","6b10f51ccff9fadebb0367bc54bd6e568784f08594249e5758f0706b590a14ab","db6cc2901000b71ccb9b8787a91ca87ad616f8c416b42b7e86f6dff69bbd3241","84f6cf99fc72115623b5dc55f6b7f52952e8a7eccf5bef7d71c438b13afe3bd1","08a9f15fc5ada5abc41dfe4eafe8db608b7bec526dd5a0e447f62abe58cd4e27","40b96fb0c6da2f7a2f71b81c05602fb93ecd0af55f984a4a5f78cc906727bfe6","7a6127272f94648f1c3fcc0d2a6e35a4dd00746fac136eb3ba0e08db3f432b78","f0bbf34c1dde9d32919100878d63d35b3f578b04c286b3c7e9b27a0d61c8d8bb","06275dc2003d93dff6ae62dae412a16841a241c39c4d4453231315397101e1bd","aaa7b399bae700ce8013bce7d22a5956b227f2e0adcc638da32f9fc5e72da67e","77ebbc5a767f49a9f64068a716a8c843de0ea8d44adc624726bf46e2e415a41e"]
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/service/en","quote":"Super simple and fast way to do your taxes.","rating":5,"review_date":"2026-09-18","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.