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.

“when I contacted support for help, I just kept getting told to clear the cache, refresh, etc.”
Google Play · 2/5 · 2025-08-03

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 2904877428

Proof data

Record hash (SHA-256): 88eeb19ca0413ec971ba03724667d7f4a6d4ab9829709ad157bea9d10fa570bc
Signature (Ed25519, base64): Db3cz1UBl0PMLtFyRbR8cJuaMN+firNvuMafFov3Ek8/OX9NeAB3bioeltNJwWz2nyXmWHwsgZDGHaVjT3bQDg==
Merkle root: e299bf38720a5a91bdf63bbc0205245bccdf3432ab1652c69342549658b7a9ef
Merkle path: ["88f00359eff08ccef20a789901883c7b70645149e3b6382f8793ed1264b3cce2","ee02c5156b3575425014f7e2728f2015efbf5b6904eb47a4a64e0fbd79147890","e9ec43f7aa554d718c16e02622797a8f429b09aec95578ecce19f918c57bfd05","2fd49f723ede58f2af288b5d1ee72e83fd5021b53b0b4d38bb2c71462562bfdd","f9a7278d009272098c9336ba57833b5e6bf1376c195cd3d20e4bb781e6603396","83158d0388249c2fb33601183f86bcf12237b98c07d64b0f6f61dd927ed14d43","b23a9d949c0e5d5b4c2131d2ac334f159551740cbae0cff0fa2c0a3c00b536c1","96753e267b6f26e160fc5bc4b334aa2d34410e96b71225cc54e824d94189e7da","a560203c887e015559be6fc431a4e3234744120207a7b3dff122a9ce6121198e","0cf5bec4f5b90c40db010d72dfd5ad44323a66756aab3841164db423d8995b55","3ffdc1ad653f39c0429787d5c91bba35366ff0cac1e131f271cc3308cb191be9","9c56efa7498f22733bd81d9e1a9aa96f7fa30f782f3e2c5dc658ff683f136fda","3fdd31064998e61048d534909957bf68a4f9bbe35571f6d185756d8acc2a5420","aa4bbeb87247c2797626ab02a549451da6dfce4dcb854a36fdcc601e3e788772","bce5d442c07de6307e5ea8947098e74ce88c2246eda5e5fc1015a6d7519228a8"]
Anchored: 2026-09-21
Public log entry: search.sigstore.dev, log index 2904877428 · entry 108e9186e8c5677ab408…
Expected log hash: d020708737f55ccdf49203f373fcbcefe8158cc388605556fbfda3c365de7360 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":"v1789881486272","kind":"published-quote","locale":"en","page":"theme:vaia/communication/en","quote":"when I contacted support for help, I just kept getting told to clear the cache, refresh, etc.","rating":2,"review_date":"2025-08-03","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 (e299bf38720a…), 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.