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.

“macht kaum Schwierigkeiten”
Google Play · 5/5 · 2026-09-09

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 3178115911

Proof data

Record hash (SHA-256): a4b7a52bebbde82bf6f02e0fbd5dd98b747f6ec907fe57450f5ce799fbcc63ac
Signature (Ed25519, base64): QSAPpm6tYoTOQm5opzNn2dDYl+uFFULoXbHpvLefE0djSJQosi5VVnbaOpg90dcX8ySJ3VWenonQqGXM1NEAAA==
Merkle root: afb9ffbb4b4e88017e1c868247f919ebcfe69f09127d391e7daa08019eb2b63b
Merkle path: ["a4b53e0020544bceacd5cdbaa24cd46bd4f4849ece4d3e60115addb9c59d67ae","c5167af6fcc32542f3a02fdf8d16cfcc8c4c462cfbdcc56df48778f87325ff86","7ab25781aa68ce8e1981d121dcdfde3cb6e42eb1fa589d29abdd81125120855c","cba6249b9ccb3cedbd16e33d3c7994db82bfe98c8441e83af2cd7bbca7ddab06","db3955e03e914a34b3821c857a617395da2420bf07e85c255fd17c2748af6300","3b7e9707c8fb31253ac11be4d29bf70060bb952b445802028cfbb92a912b6c5c","347da28ea6f27d12518f40d3c040939d8d0c9629a8db9011f839b5514073fa93","4846669fcd2e0ccb609b9f8e8c628e3aaa6c1adeabdaf1782a51c84b377e988e","1b82190482eeef916db04d77f273d10fb76cfdcf443f7bcd2f4b809dd2eaf086","a1659b41ae31b6e7cb705d9db0c75ad82151b484bc67ad13714c3ce64c2249bc","fbb9c9a18eac38793b2bbe9f5a8890915f6baef5928b501720ae1ca6a0736581","6143c7455ad967e91f755f8670f5d28a4352605199f021f556e1f5c4f79aabc6","ed385a47750dab9ec64ed7263ee30fb072849b32983406b7ab0d0c13d1cf4dcd","5c5f731502958b375bc1d9a553448dbbddc644c5b57d6bfb1c2392c3f578da0d","72bbc4ee0a973113b1d556f76d02fea2c4704794a0d313a96e49ff7b6174dec2"]
Anchored: 2026-10-10
Public log entry: search.sigstore.dev, log index 3178115911 · entry 108e9186e8c5677a2bba…
Expected log hash: a144ffc32dfaa9fe45b4895b7f4c17280667152868dd8de227ca2811c60c870f 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":"v1791604579182","kind":"published-quote","locale":"de","page":"brand:concordia","quote":"macht kaum Schwierigkeiten","rating":5,"review_date":"2026-09-09","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.concordia.myconcordia","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 (afb9ffbb4b4e…), 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.