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.

“Man kann aus der App direkt drucken”
Google Play · 5/5 · 2026-07-24

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 3163352270

Proof data

Record hash (SHA-256): 0f2688185d1e8edd314bffa5d83fb9cebfda0394b8253cdbba4ff9dddfbdcf55
Signature (Ed25519, base64): yWfhHi9gm5/zTAgZwIjB5A8NpuQ8TeJN/jmNSzxRmIAC33TDPE9aQRKdCDwbWgso5RXhvw2s1mSz8jippTNlAQ==
Merkle root: 784ff8fc3c42eac43c7d399f0d67bba55d28073a7e106789ae0c6c3f5ac9dcc8
Merkle path: ["0f275e35055b053c817a0b226dce906fb4af62e9d2e832821edce29eebad7b32","40d21bd3de05e782873691e10874841e8ecfb31e58dc2047b50d491ce5d2f1a0","6dde5557cd23434b43bff9877a61774f77e30029a048afac9ce4cffce24414f7","70aeb90e407fad280189a74ab34b9518a5dfdd68df8aa19fc2f8665bacc82fa1","ef0c7084fb2439b504ba8dfa648da73438daf6cd5c6bc051ebf200e149bdade9","7ebfb9d733f2fac48fa3aa57f4a34a0df1d354acc86f98b007a725ce086f5400","984159c6b9012b7e08e4656c566eeae71d2d39555c96abdf86aa735ddf1dcc4a","76eb4134adb4c33b3a4db0953e955e92a26370773558cb3f1f37703edf383486","2eed450cef4b37550554ad37d3cb8293f14d5c5eb039ce66893547e4cb3f86c4","6cdce08b65b96f6d4ede05a1741840a0807add1954eaf62a5f7061099f884924","5a147de9481e7ec083fa4c1f4e0b6896526eb1194c33414f67c0082d0b6e4f0b","c72ebe563668e58eb29ee8ae3c5ee657adf2e41ca1680bda1301b8bc24ffd5cd","b2e795b1a28ca13f7663ed8f62127f0cc32efbf6296671f3d7800b760642c1e7","7c65cdc9460755a327943aea2ce97e2f5c6080d778d9434fe2dafbfbc1e3b04c","5fa09e3847513934bffaf71960ac2a100e20422698698ab1e19a4fe8ac133514"]
Anchored: 2026-10-09
Public log entry: search.sigstore.dev, log index 3163352270 · entry 108e9186e8c5677ad020…
Expected log hash: a3ae0badac804d14d314abd0e71726d06a96c43a3840dc1d63acded9268c461e 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":"v1791543790412","kind":"published-quote","locale":"de","page":"brand:acrobat","quote":"Man kann aus der App direkt drucken","rating":5,"review_date":"2026-07-24","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","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 (784ff8fc3c42…), 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.