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.”
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 3273053873

Proof data

Record hash (SHA-256): 21a07e8d80da77438d10f62b3f76babe7de93e6666edb973d9d9de56be296f2f
Signature (Ed25519, base64): OBTM9OYi8pzv17LWSFTjEJ2w008FS6NCysN6mZutIgS+U1L9+/Z6CNz4EVLBy1CFzSADPlnCPFZNWTv70+rgDw==
Merkle root: 6953a5ba9bd00082fa1986982a5979aa7ad5b4654ec368f8d247f13243e4e4b8
Merkle path: ["21a43c0706a3a4f39ceb72df94ce2f3633ca495eae6508eeaa1ef5a1c08d7bb2","ea46aeb7c01f5982557fe57d4e8cf6dfcbb008f3b471d9e101e9ea3280598320","9518fce88300a500ace6b89f4a5159c16f752dbea60d4422133e9b01824829b4","3de66bda18cde6d54b2f3d91a20db49138aca2f2b5023ccc322a308031f2ab61","6eca74fc7f501e7ac306bf16afd55355dd6c6132912fa9b7af1c31da382ace16","14ce1fce501d899a181fd0318604974ba848b33f87d823777106bff88a896f80","cbf46252522730d8804920a5c38b8115925eb3cc858291c5ac4cb5f8f67eca94","2231157f6e6c94c0dbc1d158f4272dd16240db5e6d2eebd5bb9997c0e0e222d4","c09f9f09c0b3bc13f3debbdd7a09fcf2105fe9b67bbb7942cced959899aca288","2a71346b3a82e076204ff0c3c2f36e8da558e58a6b123c9b1bdbabf5ee3e8ab6","72c3e38739481bd0a6b962b9809fc41fdc415b4ea8f89001926f0ebf61efd9d2","d42dc1b37546fc67d932c54c8efa2ed4184ceb43d115311d414f7b177c48c420","3d6624c631c3f201b337a52bc4f9494c99366c0aa74b4db152cef1b6807b4800","98a14e6f55278d0c3f64d31e6bb09545a033fdb7dd6455363be23426eb85b044"]
Anchored: 2026-10-16
Public log entry: search.sigstore.dev, log index 3273053873 · entry 108e9186e8c5677adb5c…
Expected log hash: 8e660c0f9c2f4acb2461077e20036379bc945573437a296969373758a8dbffb8 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":"v1792120102008","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

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 (6953a5ba9bd0…), 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.