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.

“Die Synchronisierung ist schlecht, selbst nach dem angeblichen API-Update.”
Google Play · 2/5 · 2026-08-12

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 2681683699

Proof data

Record hash (SHA-256): 0cbcfe3f130c322c27ef0eb43995a71a8824ad74563678420998486d6d837f7b
Signature (Ed25519, base64): 2mT3/TzZ/UfTHny8FpKA2l9MTE/D+Z7PZK9lbFiHriHrqODlXQXrrQDtNr++EdzPrWCGD6T5y63SoVUJFSdBBw==
Merkle root: ccb89d7f2b2787a5fc0f51dbf1290cf6d3d054f065f4d486ba9ed3b4bbdf9fc0
Merkle path: ["0cbcd6bc11810e7f0cccb3fd2c604818809bf5fb326d465a7131849166f4bb24","b89f80b486d1ba837510e35c93d923c3bae3813d9236320dca829adb1e72e1aa","25d3486ae7e9dfa878c3efef77b6f82e8ae91db8e7cbbd314330f467209bdd76","eb588835760858bacf1d9d8e50beadee15f8476ee83b5ea89eb208e1dee856a1","dbd82e73b7f11d0bd21184ddcc32f28a8e3026e4551839142834419a168c50f6","e3ccd0cb0f6fd0afea7762cf41e6c51d99a816fa7f2b1ce6585b0ba90a005791","795a0986762d9abf74dc4bb3b443670530723d47e3c648ad5463ce876fff36a5","60a68e68ee097d4b4d21af9366f154c85a2c14913d66680d0743b1ab3ce30269","36c0d353ebe72c167fbd2eb872c3a60cff840ad367661dc2f3acc0022e3d04ad","ee6338f16be08ef23f273277757fb0b7178d32cd2f1a36fa19e8e562376e57c8","800697cb2d0c6495831206c16104148ac1067e269c112862597f33febc2c1143","96b9ef815636c0a44ef8beb2e7abd9beaa7230ae4a7eb5837e3aef95a54001b7","bd2e522b2e0801a94f25b8d85cab2f5e90c3deb38ee1012dd4b2890c36cc82d9","b844e11da68827a04d7e3043eae18bf24184f5ceb32171d2c67117bc6a285203","1b1d46fc72b77beae0123d299c828e6389aec5d7e71b30d8e28560454bfea5e5"]
Anchored: 2026-09-01
Public log entry: search.sigstore.dev, log index 2681683699 · entry 108e9186e8c5677a35f8…
Expected log hash: 388b8efb5e320612921149bcc968bfd0483dff8f345428556bc22b9f1c360060 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":"v1788305244922","kind":"published-quote","locale":"de","page":"product:proton/proton-drive/de","quote":"Die Synchronisierung ist schlecht, selbst nach dem angeblichen API-Update.","rating":2,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=me.proton.android.drive","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 (ccb89d7f2b27…), 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.