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.

“Better album management.”
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 3258859570

Proof data

Record hash (SHA-256): 169e7f39cd2cd3ce488563995a2cd39ef7304da33d1f45bfd2dc8cf70140efb1
Signature (Ed25519, base64): ca8utRI6KmvH5H9EHz914qyGBiihs78VQlf2krXEjJOUV/LoVpyu/Z0FphUYIMpsqJKshV4DHs2uiXBW/5V5Cw==
Merkle root: ca3049e83faa90e23a8ee728d82960c74b9da8080000e4c92979853b767b75e4
Merkle path: ["169ab31bd58ee3e57f047315074dec108fc82287de3f8074ab656512b086d8be","b614e8a97ac402ddbe4d1aaa86c676a622f755d9ca47bacf4789560cdcae2df3","f63f3d2c3a5682e275f458dbac027bf32a0bdd6464122606605a9d9671714731","8a6643382c924fc369a690ad37b0c26dae87d9817567e199921678858b9d453f","3debe1f78457ca23df0ed3e054da7deaed86deb1e959dc7b4e3b7b035c8527c8","8437721f66c0cb45ca2d655fa738d5cae943d4f325073aa25988f4c67cb8b60b","f51b8331fc01825bb0158ac6c820134151781b935d2f2f892a2aa14ebae54fad","1a24c3137439fae0e70cdcb52ea590ceda9215f0a357761a74d4d7d645bacc23","6023e1aaa9de19536c149e18b9c08377cd14751139c8ed47dd3458d26fd3b83a","ec33680bdf48dece235131c83bd2a728f78f4428a4454c6c7a0412b932625c21","82910a5026a7e6ca5de409e1fec5e3a85e26dcb97a04bb4734e3b891249e3f3d","c528a565399f1c43ffb0fc3019a2c2cee2d7413a87787555bb34d4d613541976","3eed51977edad6c2579b7e509587049321fa77487298d3b73535214036c0118d","7614ef067de1e21e5c4ed10ec802ff07f79b9dfb75186edc1d9abf343905b9c9"]
Anchored: 2026-10-15
Public log entry: search.sigstore.dev, log index 3258859570 · entry 108e9186e8c5677a8fb5…
Expected log hash: 37382a24206a9b79ef105a983cf477ccafc4b4430b1549876c44fbf5fedaafa5 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":"v1792034893828","kind":"published-quote","locale":"en","page":"brand:spotify","quote":"Better album management.","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 (ca3049e83faa…), 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.