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.

“Weil es oft Werbung gibt und davon auch noch extrem viel.”
Google Play · 3/5 · 2026-09-20

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 3199014646

Proof data

Record hash (SHA-256): 0d895cbf7dd84e9b71628c7f46bfccc26e2be06b02e9d2e9383c7fe8c8bda3a3
Signature (Ed25519, base64): UW6sovIRThO5HV5fW5thylDNXfN/v+CTT5Pg4TaqVv7rFmkhyRb6CEwoL8XSU7iq7u4Zqyb9fRTFNZE3/o47Bw==
Merkle root: 79268b3be1e951447ad916daa23d94d3a225505999279adfec84e5728be030d6
Merkle path: ["0d8c5a99b3b7e75517a8a0ee645b6350f834a62445f37dbb607525f994427d56","649cf9a946ef33e52bb170aa3f4c4036df45bb43546216308b20ba8babaaa65f","b2f153150413a81598910662820b5737da8231301aefabd14407a4eeaa5e1d08","a28312a698c8f413b6eebcc55f72bcc8d70a4c0f553a02ae17f64c911a90d936","60bc5cd506260b202fe50415cb010e4d99fb454466874b5e7294c5379b17db99","dc35b06c4f6ffbfbe76ef34fb5210ee774c470f24cdd455de53d14dc8f1e4634","04c316bd30a199c798774060bc3cdd6836fa2f4a90bebf522ebd2a137b396474","266a4cfd656e3734f7f246ef3d41b107fe7d7b1e99289e7ef0333e930f839474","d187a4b79434b51c4120543617a8536300376a5de5b424d9d63608c3b8ab7962","da78670c28919d8445370910f15b3df5cb6e57376d4477cc03d71f35f0205039","19cf0f78344a19c5ad5b2ac4be31aa5cc1da4817be1a9ff489259e48dd8ed960","385e01036b50aae7fbf449763f02e352d0eab1178ab2a26b3b0e3fba537066d9","ca0926b42bcdad354c17320adc5661c1a0407072f1d5c01424cc2e7f9a3515fd","b8e0a41590cdecf5ee846d5a4dcd3ae91c8a0a052b75fffe7c4c5f4e2ca53884"]
Anchored: 2026-10-11
Public log entry: search.sigstore.dev, log index 3199014646 · entry 108e9186e8c5677a77ce…
Expected log hash: 55430b734e4d00e4ba9c340c7ab064436f91281dd4cbc27c1ffc37d3e26a0e3e 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":"v1791688566698","kind":"published-quote","locale":"de","page":"brand:spotify","quote":"Weil es oft Werbung gibt und davon auch noch extrem viel.","rating":3,"review_date":"2026-09-20","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.spotify.music","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 (79268b3be1e9…), 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.