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.

“I only studied for one hour before I was kicked out of the app.”
Google Play · 4/5 · 2026-06-23

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 2907673729

Proof data

Record hash (SHA-256): 6afe1245a42f0493fc2377af5e74f659bb6d911f3349bb8d8fb0404493e44e71
Signature (Ed25519, base64): O5ZQ4YmXsQDSWL/9lhogrkzso0yPn+SXHi48FoqFG1OWMWj4Kn77HauUqWuUTVGZ0xrvUzsA8164D9NjrGWbAA==
Merkle root: b9a08f9d6d76dd148110a496219c42cf3205c6f982800d84d5c85d77e9461e02
Merkle path: ["6afc57c63c13d466651a76adbbeb6432082384a69d41e1c6b15a09b68787a090","66b8f9c1039ae0b6b716e6134b6ebbd7f57e9ee88f96b44e9bd4b48edc278d1d","01239e6cbcf515a8a7b80fde1de93a4f6f1aaafe8e5875063b14edd7f855c058","fc50ac181ec83589b26abd528b399e9b90a3e048bfee0174bcc32c29437f6006","6637e6c074a011cff508d322f9e7cfa8e30efb99c2eb3f63489cdc627e0a6671","9fb7884d26b58bedad7fe9d1d81cc1766c3f579b4105523476ec1bde3646d583","4289168b0045a2355bfd82cc389f0b7a0e99fb7940f24ed1b9689bf55097fa48","ae56da67f4d98257c2df97a9a5edd03567ccac7811421bc03d47f90e1a3d28ba","b313dad4ca4e90ab67963426ea2c5f36942a714a8a1ded8a3306e8e8e5964ec4","ce682cb5abf93d908c06a0a0357785c4f241ac5d7bd85c82abf3c9beea85b725","d34d9bdeaf35840444664f9988f9e353271b0e025606c586244ce40ed001b13f","40bd9581780e3da9ba474021971a27a2b963126bf33adecf2de39d29e5b5c2dc","bcc0d977b8ab2060a87584efe5d0f5545e840726716d3f02c248db108122259f","6c299608515c69a03540be35865f96ca4932f3e0403f8f39fb0e1c2e2aedffb4","43a562d6822dab12c673c1efa0a3171d1ef69b949f676fb01847e1e5b56274de"]
Anchored: 2026-09-22
Public log entry: search.sigstore.dev, log index 2907673729 · entry 108e9186e8c5677a06ea…
Expected log hash: bf9a74000249ba6e66b1e29aae9d8cb95c3400dc118569a80e5c0949f3e8ac62 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":"v1789969984102","kind":"published-quote","locale":"en","page":"theme:vaia/durability/en","quote":"I only studied for one hour before I was kicked out of the app.","rating":4,"review_date":"2026-06-23","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.studysmarter","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 (b9a08f9d6d76…), 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.