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 immer sehr gut gepasst”
Google Play · 5/5 · 2026-09-18

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): 73b043ef4b496bfba4d3000b8508dda24858a7baeb62b0eb047d02f8316ac5c4
Signature (Ed25519, base64): cNw+Mq8KgV7MS8ekLINyj3WIcdjBpyjQhhAi/7QwLls+SrKU/Lbe7Fc8LjDXdJaGRgfrS4os94AWqF/5bh6dDA==
Merkle root: 5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd
Merkle path: ["73b07551cc76aa9d598437e809c33a896988241ba44a9d5a0f06d1e932d693eb","82460e0602856252801456a77aa26d3a3e294844eafdca03f9e3850d6468e64d","2176565c9aa34bf8f986c423739d1a215d53571b8327e749b7670989e7261a90","45bf9aadc813fcbf85f5d4119b5b9cbc3c3eedd84128daf18b7397720e9f1d85","94482aa0ade32f1774020dcb373d035633d9cfe8fd52cb860777db0dc67e576a","31f407ace11e97677974e7410b9925e5fa6873ab847905ce1d2295b75a50008c","94f79e73289460ff7227652934a8832aef2c82bb473a6450f752f6bd21046335","56ef03d1650ad986ce0ceefff01c80eee3fba889b54f5ed9520d41f694b74557","a9660c377c29002534ea5168bcb97f1848fd12f921efa28409f5ac34d3eb52db","a32e688bbc0fd45ee9ec38b3ba945d8545ce23245e53ec8d42fcf0286f24836a","6d5529b06a3d123ad095cc94bd417fa5b933f519e60df8914024464e5df4bc37","3050619da10b649580e435ddaba61e995b6d1475419664a398883f5eabf734c0","48bc5ea5434a32841beac8d9496d2692095edbb7104396574890154d981868a9","f5d1cbec3469173c409764ba850b613628c88020363ace8f472e6f611d605e0c","eb97a4ce74ce5f5fa16f1703481b35cd770316cd3d34167e9b76f4403804f896"]
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":"brand:zasta","quote":"hat immer sehr gut gepasst","rating":5,"review_date":"2026-09-18","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.