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.

“Can't process the refund even though I have the receipt.”

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 3241084060

Proof data

Record hash (SHA-256)

19c2f53e03ab819872a204bebb9c7535dff4527a060d7a9d65e978bbc07f1b5c

Signature (Ed25519, base64)

0q9o+HamnXgwfN9AQ1ch+JSmOjgXk0JBG31UbsFGVtDRVYVhC8HxyuWaKqYADSllDC8HQgzFQzmezOFs5eWGDA==

Merkle root

0b0c0499033d3f9b3953d31e6c838f88f12988dba810dd4de44922e1b60fcdf6

Merkle path

["19cfac703eb810962f68b7e75d2319f3dfa5ff03f4e1bc4dec1f58b622aa9900","d7b2459b6468d3b5a0828236de99a6da2bc252f3a46710f4138d729c3da28c75","c4c07b1b224336c354fa9bc998ffd338058723fafdb816a1adfb5c851a44f3dc","8f61a26dbc90e5b4005d922b126316008acc43520a84da3187b874f7533a5e50","a513a3b67714d61cbf7cb330aa3ab24ee98c9fbf6df71ac7d2d2abbd4001a505","dcd68c45c1de99995354b80c08bd65c98ed8df85e849c161d2bab89c4c6ccef6","d480d44562fbdb656709408dc0257336972b2ce6e607e76d18bfa5121506948d","d12d4615d5cd3840b1fb16c6d9209b1d1793bfda2c0bae49f2faf4990706fcc4","0b1fa50384e01bb94bc1df49e21512b1c7f48fdce160c205e471be24b501b6e5","ef1d89253fc65afadac230062761b4cb25b111a12d29d09a6773aafa6c6725b4","97bb581f373ac1585fd287a96ec92f37e16a17e7e09f4b197ef739b8fa5c9cc2","fd4caa7c5bda5b821309f24a41bde8275c1fa51be2629af50c760cc53c258d5e","fe7751fa4b9a0ad43fe0710628b6cb1b92e12eb8a60d9f17eb0c0764d693577a","8a05b9e19287b30c7fb54816a1fb848939f3f2c84b9825f19f342683d5db13aa"]

Anchored

2026-10-13

Public log entry

search.sigstore.dev, log index 3241084060 · entry 108e9186e8c5677a3e82…

Expected log hash

a291e2473f1a4510a666e020d4d424e463d55bf4677b91eb5a52e446e5ff1581 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":"v1791865115768","kind":"published-quote","locale":"de","page":"brand:spotify","quote":"Can't process the refund even though I have the receipt.","rating":1,"review_date":"2026-10-08","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.spotify.music","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (0b0c0499033d…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. 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.