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.

“Unfortunately, the verification system is extremely picky”

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)

82d98fb869cab67aa8115ecb0dd7fc3ca219678af5a24829176a7aefe5772c3d

Signature (Ed25519, base64)

sSN5AqTay9dtGLqUD7IRLFcEly/UklrlPMb8tZlivndXRJhKYxoxvfrxbikz8iv9t2/ruDkrUc/4mlVCmObBDw==

Merkle root

5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd

Merkle path

["82dc71b04f3712f6dcc7309333248315f9a7aa5a7617971675ad92eed48b1795","f7e6eb79c654d21127641d286eeb651520aca6b40c0df1dce59fd43053ea1a5c","d79fe064d28c29c3f225f4f61489d18090140306e1db4c256a7347283e339d2e","f62419fb65aa96ef520df8c29330980a5ef6c4c96e61912e7e7f539511cc89da","7388fc132949a46df0d5df64b751cbd2dec69e690e07a33f07e90c738dbd275c","7a7ec5eb50e2ad40c90677eff0cba6220188ecf1671d3949d72d55e3611bd76d","49d7afb3288a346af7cd706b11098d31effb78c5e2731dc26bbdaeff75da27d5","b9eb8fb6d9600cf00aebe8446559f0c2e6783ae82303714a924cb64dc2e105ce","976f6c4582cb08a93682172444d4a21e392e8812a77b59ad420722c7526ce455","7f53e46ca5efec64757c543a6e4afe8a0f0dc321a0688577d32517e34c554d83","606ddb4be620edd39037d7b2f4b86373b8f0989173b3d7f84a427d07c39ebf71","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":"subtheme:zasta/quality/user-interface-simplicity/en","quote":"Unfortunately, the verification system is extremely picky","rating":1,"review_date":"2026-08-18","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.