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.

“Funktion einwandfrei”
Google Play · 5/5 · 2026-10-17

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 3668087860

Proof data

Record hash (SHA-256): 1f5f9c25d3557f36dd87fb7e04c96fed92857b3383ad67b9be6b76e3eb2039ae
Signature (Ed25519, base64): WcdqRBxc1JLM/gADdCXirrJIiU4bL2o76N9/g1ixiJ/RpJ7/UNaG3RG4GuJDMCa2I1BwFoBfEeMs9Siomp2XCg==
Merkle root: 1047936f87a157b28c078afc7a20c2628bbc08f0196f675d74b106da179f0837
Merkle path: ["1f6182c04a1500a9c4ab0147e39a422b6121b13e6391deddd903f3bfcc5b6886","9512c9273f7f16184ff1002a987f9dd02619aa2a87683e03b322e33192b61648","6ca55a730fe19e20cd0de61e4ffc553ab763c7e8762b8235c21715f763cceaf9","36f2a648022dd9f72f2f3ac159ffa528e3e4071f5f3dbe6a41b0bb4c4a502ae6","1acb22fcf001209b0f47d0e0c3b501116683cdfd4085c0f2d106d14a6e97e7be","6087683d67941617eedcbcded9cf37732f4d0e271392cd30fa4554f414acc60d","694bddb8b77add01a518200a312510c21eb6d8605601cad3b1693253ddf9e3d4","0593ce696028a1e4cf4a7318d4e1baeeec3c7970e64e7473c276a5d21045f49f","dd93e1a3260ac51a637d6ae815a72bd0922ad7c0ff946d425b9461d5c06692dc","759b07165b4be363de8313d931b5709c583d01869068be02453600636c0a4b0f","4fc35af7070a3582c6405492a637ad77c30890e1d19c04b461a3bdc50258df1f","914ef6f739bd41530e41057618e80b0e08808ba78cdd769f11515bb20e10b1b3","f0c9f05f81092a04253915106712474a19d91611bbbc8087119ec734570aca0d"]
Anchored: 2026-11-03
Public log entry: search.sigstore.dev, log index 3668087860 · entry 108e9186e8c5677a9a52…
Expected log hash: 8136c8219f7f6eb1e1368a1be1e1dded601bc632f0bfe79c4ca1bc6cf8be67a1 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":"v1793705308993","kind":"published-quote","locale":"de","page":"brand:twint","quote":"Funktion einwandfrei","rating":5,"review_date":"2026-10-17","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.zkb.twint","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 (1047936f87a1…), 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.