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.

“Sehr nützlich für jede Reise und jede Gym- oder Lerneinheit.”
Google Play · 5/5 · 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): 1e0de2d9f1aac717da10d617da7e61b12c09bb72e1781a00d64afe3fa0242a34
Signature (Ed25519, base64): F8YOO3DR6rIAHXUH0izaeaSWC5O+b1EKccgL1F4sq8LGtxVIneI4A/lzSWobKPhxtVbsk0zWjAGOMtrkc+RrAg==
Merkle root: 79268b3be1e951447ad916daa23d94d3a225505999279adfec84e5728be030d6
Merkle path: ["1e065bde53e1d890e40f82050338229fa3f77c8bf407ad13b66622b583201abc","a5dfbaf6149c43fb6dd060ee7437c3cc06c3b4b5047ae77ced853eba7e8a0426","480b08f69d3e6fffd4d81d935aead71786e196459e15104aa8ee045dd1c49221","cf10729ac031d1b076aa89f5da37404bcb8fbd6051e8dc2c0e4bf49e2e39dc54","add4b6277110cc53db424e7f303b74212e1babae4f96957653c1fc7b13597e21","02b0c84004cec0cd5f15b2af118de1e29f8eee0df1d0830e6cb680769aac4064","dee8d301769517082b9d29745825c5ef593acd86f1a18f6ffcd4f4608b9f515f","747620e4cea5d2df2e9f06548583bf6a5430048669bc56fc6b327f58d477bbe4","e8af0961c41e5498626445a4b50b11336b2516e43dfa5e6363e46f9f261e0373","e9762b4f852d1d18bc2d04bbabb2e592f0c542180f14f68eb3d69f1edaeff7e2","678ceb3344c76dfda7371727396ee96e97a9f6fbea78f28e083d8e2fe3de2f21","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":"Sehr nützlich für jede Reise und jede Gym- oder Lerneinheit.","rating":5,"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.