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.

“hat die App echt sehr viel geholfen”
Google Play · 5/5 · 2026-09-17

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 2948162176

Proof data

Record hash (SHA-256): f1ca2eca029e5b04ebc8925ce8bd5c88e1a46a569ea8a64fc5c91c6635bff5d9
Signature (Ed25519, base64): Cv3vy0dVQKQ7+ncczkm9CPniK9b3tqz+7uO7T78D/fseqq3B6gRhwI6JrzAhkan5EHuZwJuNs/6R0++bApXrBQ==
Merkle root: 5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd
Merkle path: ["f1c8f53603c1320804ae2f67e7b4536a5642bd562bc57f964355d0c2a300f7af","3f7844989039f291f6e6c0b5600fa56e112cfde2201c90ad1647fac9ed952296","61c05b9287c333b304728ca18e9288ebb54b1f4756619ed0951cbec6377b7b5d","9bac3970a18fbe21dc14c58125ccecaf97e5f20d0051721ebc229b52d95ad8a5","9ec266e05c1ea25d1720fdaee449d98889d1fa0669d1231517fbca8a905ab33b","8493c307084a5becf374c8bbdeff544b38603d5ab865a583a9f645ba89506125","aa486e92bcc916a0ef63d571a96d904d7dc9c33e55af56e56d04985d457bbe13","d1cfc2dd1e5419fe4dabcd01a138c41da65e5541e30abd3e17a1822f60e5e6a8","be45bf8c7e2be5b02bad214245da6bb62ecc9562fa0627c1ad8a8a730aacf4a8","5f5db31d7716d60c3a84d8724a55faa539a2e9492d48a1c3b4d4c5937559f982","2a8f0b0b95bd86a288df50f77dcfad4982fa6950e7aa200590b1675cbbee4129","dba69485f1d01b1a1a0b025a8d16147fd90f9473b16d200f26c0a34e7aba2d46","82803ae7220a028dcdfe85032be69ef5f73bd7602fcbe12652ec0c9b240ad883","aaa7b399bae700ce8013bce7d22a5956b227f2e0adcc638da32f9fc5e72da67e","77ebbc5a767f49a9f64068a716a8c843de0ea8d44adc624726bf46e2e415a41e"]
Anchored: 2026-09-25
Public log entry: search.sigstore.dev, log index 2948162176 · entry 108e9186e8c5677a61d4…
Expected log hash: 5ff8f25b7934b5d72d363d6805344624efba4d637f2c851f11783b259b9d81be 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":"v1790226990092","kind":"published-quote","locale":"de","page":"theme:zasta/service/de","quote":"hat die App echt sehr viel geholfen","rating":5,"review_date":"2026-09-17","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.app","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 (539721061967…), 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.