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.

“I suggest reducing the ads.”

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 3241341297

Proof data

Record hash (SHA-256)

32448b7d3aeac90a40c1d40678d131c86af535b7883ae112683ac263bde6e3d7

Signature (Ed25519, base64)

r/OxWykzCD05neD9ECXxKGzRfzixVQ1fBuIbr9WOn99BtPUqpD7CAK8t49ZcA/pDcf835euq9FlWdKc/OkyYDA==

Merkle root

4900b1080bdcd3b4c9234f01647614e7004e0a1ae01ead44968e31abeab33265

Merkle path

["3246fba08fbe4b9bed04ae8dce8feb65b776a1a1f7a9609fa638c351fb070de2","3b293c385909ed21a322fa73830a3f9a2f7c69afe35bf48eff2549c6cf16301e","3d8cd7c2abf3673918ea2641d7c232424b595c793c0416a884a8b1bc0af1b60f","0f4a4676ad54aec161ebb5ebe5e5e59702d035caf6ed8231f9d50d448a2e5e3f","df450be86a9d25374f6f1d0251d664986a70b6894bc283140698f9a0a49075a8","92965925b062f3fe679186c338962c39ef0b87dc8059e9f99b3b3ee0cbe6d4f7","9be11b957a9b2c2e11e6b39408aa533240cd453349def295a629230c3c6dcb60","3adad6b718fe3b5744b44a5e2eb95567f18aaa7c14f4a91fcb154b8ff1a12137","b4f7978775aeda04079f417d53756bcbd3b6b86b6d249a85332445d00c3f975a","c3d8da89cbffc4527d4195997f3292a281668dbc65b8c89ce61b82b9c82ad6ab","a3b74b17f9cd5d406e0b7770993216956a787a080b4312b3087d7ebb01d83d77","1a39eb8110f60cca7b5d74c4b4e1ee494aba4bfcd1f4082136542cd2a427ac26","acc667d852c71a0e84a086ab20f7bbad3d8ae083a1e44cd20501ad641f662bdf","0a4842003c61f69c5923b6aafd56426e7fe934e483f7d15b620c07fa61f89152"]

Anchored

2026-10-13

Public log entry

search.sigstore.dev, log index 3241341297 · entry 108e9186e8c5677a0e53…

Expected log hash

39342fbb95f8cce5be4111719e5450984494edcdff99b8bd9a5c0d2303b67943 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":"v1791866192176","kind":"published-quote","locale":"en","page":"brand:spotify","quote":"I suggest reducing the ads.","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

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 (4900b1080bdc…), 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.