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.

“untere Leiste nicht dran weil das bildschirm von der App sich nicht an meinem Handy anpasst..”
Google Play · 5/5 · 2026-01-13

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 3199014646

Proof data

Record hash (SHA-256): 523903567a323f83a739ce1c763f420354da8fb7ee475751eb7a47a7258fe5ca
Signature (Ed25519, base64): 9su9vuWAycViBm/9rQhRV319hFdGUXgcRTgE51udYCDW9x3CLEEs/WubmAhs583kes6qt96VfeIn0S8JH7svDg==
Merkle root: 79268b3be1e951447ad916daa23d94d3a225505999279adfec84e5728be030d6
Merkle path: ["523c69f653e30a0a5a78e7452e24289b43a6259cf587648b3b8acf0f6917bc7e","4942221dd61dc00ee02f705517f0507306b1d616eafc261a63a178b49130fe26","9487e31616588a7a10f2563b68bbfd9e611b2cf146cd87e8f328d3f1db39e4d0","9969c7ecfa0dd359c6d7db53642cd9d8338f970db810ffbd55c9e2eda433fad9","6fc8ff02b1c7cf79381df6b4d7c688c003fabfd220fd4d4dfd4e51c9860ca2d5","280bee8d3f0123d836fa002793da5c43a90ce2e41992ead223ffc094234f33e7","63cf1d1fda56ff4fdb3414a7f05661d83782afb5ba1787ae824465e3870ab639","0f58648d0fee806896708660e6d993f6b3cd652938b5b960697e540ab6b7e37d","de203fb5ec23076fd8f6d2c92c4b5c713a7e18e2d8e1bcc8245e1cc10d7f92ab","6ac7fa5405996be10d921bedc67c41d73c367fa890bd24d98f7a72f77aadf20f","67de673583e5d2e9792ccf060ad51282e6784560732201c8d78ebe4a699a2e4f","67489a45554ca41db9207c6fc4b13fba605b6cd66618be3880218bae3c1e199b","1ce9afad9ad086057c7bfc40a44d07199e0e2fbe95565fbb52e4e14d796716a0","b8e0a41590cdecf5ee846d5a4dcd3ae91c8a0a052b75fffe7c4c5f4e2ca53884"]
Anchored: 2026-10-11
Public log entry: search.sigstore.dev, log index 3199014646 · entry 108e9186e8c5677a77ce…
Expected log hash: 55430b734e4d00e4ba9c340c7ab064436f91281dd4cbc27c1ffc37d3e26a0e3e 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":"v1791688566698","kind":"published-quote","locale":"de","page":"brand:vaia","quote":"untere Leiste nicht dran weil das bildschirm von der App sich nicht an meinem Handy anpasst..","rating":5,"review_date":"2026-01-13","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 (79268b3be1e9…), 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.