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.

“Not only that, after adding the restrictions, you simply cannot continue studying.”
Google Play · 1/5 · 2026-08-12

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 3273209361

Proof data

Record hash (SHA-256): 2f12afc3fa371ef7abba012f57d4a6ef8d1ad4f80b217a0a206ac7b030ad1b98
Signature (Ed25519, base64): U3aGbLpHT931y57KGMwM4CxFYHdDTNkDRTiQK7POGbTRcyh2KAuj/QeDNdHd/BGVrRirj8Rm3NeQdXh7pVpxAA==
Merkle root: 6ebb2d3fb78e4a08533ac6b6852f3c84687141ae9b0e78424d88bb4161267bbd
Merkle path: ["2f111b2eef44f6b567c0313934c41cc1b8c7a074bde610988b2c4a952730122a","d11329cfa03fc6d6b952d0cc463761b7c60c3bf07ea5da51872a095f9dc5cc98","f7d1595d65a9bc38b350947403883468cf977fd0189e291d43debad0150b6d30","f6dfb6b058411981826152f29951f3ff6e2c35b957431c7b70eb8657b9d3277a","163d660edbe605895081855fc06c5bd2c0797c75515253aace9b3f40c9a51450","63f81685eb0de4de4cce8704371487b8c3336a1bf62da6f4fd7aeb97816450ad","92cead955a2f55269f403c4394910bbaf99572989b9982421d05f33ebe758f51","92f93ad5f01dece07b54dc38495bc7dc023d5dbb0188fa7d8534031c3df3a9bb","4b44b19138a2f818c39db08e9873927015ae696007a51fd23ec4458bd1376f87","92dad562c0ae81efb9c22cb4a0c96d5566ac3900bee0a61ed1b3c342720c0f16","c6505d62fd1f18a4c80c5faa97487c91b8a68d4c0c27d65e4983982245aadb62","fc73c2b0627636c8f676f008d05fbbd4dcfb7ee0af08432d0bea252601b2007e","b2809ea8af334e57adb596cf07ef2c411ca41ee72761a0ae0fbef01d75a71a23","32d6dd564d479cc6b7834d44d5078d8ebc72c40210e72f0d380fac04d2d8e87d"]
Anchored: 2026-10-16
Public log entry: search.sigstore.dev, log index 3273209361 · entry 108e9186e8c5677a732b…
Expected log hash: bdbef22d23477d2ccfe2ed182ce8ec54934b3bae489c9913db850af171e33062 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":"v1792121074379","kind":"published-quote","locale":"en","page":"brand:vaia","quote":"Not only that, after adding the restrictions, you simply cannot continue studying.","rating":1,"review_date":"2026-08-12","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 (6ebb2d3fb78e…), 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.