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.

“Very good because I can go back.”
Google Play · 5/5 · 2026-09-16

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 2913636507

Proof data

Record hash (SHA-256): 4a34c7ba96deee94180a7de20c1809d604ca66196df53c3060671aaee7d07312
Signature (Ed25519, base64): soQdn8S4jVKK3fhLS/HbDWQTDYrbBkom7o8iLDsvz/ugYx2ZsgfiTOM6Lp4qrw/zKs+arBHHQOJsMnHzPpy4AQ==
Merkle root: f26292e960b34f73f9768b4afc64585e265549d794b35b8167826c2bcda92ef5
Merkle path: ["4a3495ac61f00c6e4debee0d14eba5a6ba6aed62c9f7b7dc606c5d16505cefa3","27285177a5cf535a598317b2adb3d8159f731568fd7e71a6417d4eeca642f027","7c3c33ebc5b78c907c35f2aa672e2a80b056ef247b3b13726ea7406aec07930d","fe75b4dc2760a011c6607d2995f310ae7078561322575c717246eba4c165c6cc","467482f5a19f4a691038190dfac8e28b06dde60339393fbc3ed890b2b97747ef","8df088b63ce301dde0a7d3d1d8919c4d6e2900c3d82f06047f41866bb2b6da67","a0692f352211d93faad6752530845f3a3e41fde0f3954738dd9f22c2136f8fdb","006797baf6aca1b7fc33a58df033f3e0a2002ecf1b50677395ae8a660b05c4e4","05f2f281b51726e85adce7cd7c737a848e64004433ae53fcb40c29709ead26af","7b7d5bd1485172ae45cfa7ff33d034448cb522d17c7e4822ca588ba4a65258fd","0acc49bf7e88743492039e1945df2231045c91a0ef7bdc077afbaecc9c0c4c73","59ed91997728cb88879bad2b8337d3faf9e7582bde33c223df4df42a8d4a6fc0","eca7cd52f5c219223fa262f727815d7426f47ee6fd8d3c4a33225271415ce785","7a8821e5f39bd89945ecf080ecd049c93644614124901c8b74f26df2e34d9289","e95e880a53b013b49906f2e6b9dcc652726333d77986f48029bb634dc427e2de"]
Anchored: 2026-09-23
Public log entry: search.sigstore.dev, log index 2913636507 · entry 108e9186e8c5677aea51…
Expected log hash: 417fac9b806377ff48d30ded01faf8424eb98406df713fe2564ee9077747e6a6 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":"v1790070376053","kind":"published-quote","locale":"en","page":"theme:spotify/returns/en","quote":"Very good because I can go back.","rating":5,"review_date":"2026-09-16","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 (f26292e960b3…), 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.