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.

“Immer schlimmer, alle möglichen Funktionen kommen Stück für Stück hinter eine Bezahlschranke!”
Google Play · 1/5 · 2026-10-05

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): 20655aa327449ec1c173dc6cbb66d79b41c71448dd59a8a2e8366a370e9af66f
Signature (Ed25519, base64): bH09QOfjwZ/xjwrBE/Dtchc2pbtxt3enCPZr9dC4XpIfUKHMTl1ONgjDBoF4yn05zjAsdAgic5sQXNtDRrN4DA==
Merkle root: 784ff8fc3c42eac43c7d399f0d67bba55d28073a7e106789ae0c6c3f5ac9dcc8
Merkle path: ["20656ee4e71af6947eec9eedb0cff4a08accafed899844d4fe191fcc334c2454","32d14d3ee48b2c980b33712b17bb8ac9b1ca55381d23e3e3136eff9a9237a3da","ba0cbd95bbdefe2c33ac7bb2e1737f5151c579108fc46f16cf7107f6b62ac389","b71e311030e015b1e7ce23d371197d2eeea47eb1c1aaab8d5cd951d3fb87ab06","4ee6ca4f572e9aaefeb90dbe839c54d32b592015e8b3305345d9e3bb01ea31b1","b1c4c4b9cc3c06f6cddfdf6a59f9dd0480c0a96ff2995b98d667293618436185","7fe30b23f37e5bbe9dab3d224959e818cc1fb3c26c67c3218377877b9fd9ddbb","1b910557af92f0e24d97c549f63e57ef5db0425be5fbf3470ddd5caeea0bd764","214877808ca820484e8640777ce16c8dd56e2543cc66fb8ac9f60f3f0bc5422a","47487eb7c1405190daf603c40b580d820c0e2d811a1e21608efd8ddf2d5a31bc","c9529055fe5b6b0f37b66764f65f279ec072fa3a305dfea6da010f70d30ab502","438fc2375d6ac60843ffaeba15cd4e6719ab0c0a256a5e1e4fb5964975c2e131","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:xodo","quote":"Immer schlimmer, alle möglichen Funktionen kommen Stück für Stück hinter eine Bezahlschranke!","rating":1,"review_date":"2026-10-05","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.xodo.pdf.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.