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.

“Cant always afford premium”

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 3240422411

Proof data

Record hash (SHA-256)

3307a595b3e43a7b2c3dedbf15c9a194c2e4be41c327054941712d4eb25bcbd8

Signature (Ed25519, base64)

VBcFAxLdlYFz7mMF3T5IuO5QEUheFSvbgmerQpqajDatEDjrM40e8Dp8Hvn2lpI1iVW9QDiWIc1Wb6n171BlAw==

Merkle root

825dbc6ca55f00c6c81d8de0f7a080bad31b79dfa0e721dee7ded0e9c294ebb9

Merkle path

["32ff4d4d1c5a0ae754d4e99ea4551341d4149ee32dceaf3eab88c601951cdc62","2aeacfda80d648b59e4954ba4d76789267578b1f1a1e38cdc81c29b474381072","daf037c5b049688cccf2e6ff43e9eaa775703803c59364c144581be449f9e27f","26a4a6ba5840a8f6c38ac147f2d6b778c746d7a7ae690a08b423add96866cfbd","f5509ed28d3fdeaada24e13547dae5cf5ff2eb59d7437d1ace531dd338028429","e8a00d44773b59100eb754dd0bbea6092a71c358a2201f3c8aa241070786f768","9bb4075bffd64d66f6abbb4692c5c6cd943e520e37b250dc0ef83d0b401d5445","13fcd3b12bb6a60cf9ab7ab041d2cae23b3c430256ce69a6cdc4239536baa6c3","8ca9fe166736cee3fa89793e4050cb826770958c0bc79ef1d06c0478156ca7aa","662a4ca6c04f6b77257b5e5bec50f4d08c0d053233b9735f80dba346a9a3d30f","a1e59f881d6bfb0bb60e505cb797755e7e38f570bedf7bfe58f6c8bf00ebf5b3","0526b5b7adf235fca820e27d7e9bb58328407474fe694c840500fecede0e4f46","1e2e9420d8c4747dca96dc342727525f4c47cf2390ef42ad69829fe37156235c","04c4bd8a9ef95bf5648c9d023612bd1f2446e83a6dcf83e612d031a5ea30e90c"]

Anchored

2026-10-13

Public log entry

search.sigstore.dev, log index 3240422411 · entry 108e9186e8c5677a0ea4…

Expected log hash

8667b0db28913263098c19cb6387cf64b6d68b1b8f2c4242d3139d96cef5da0d 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":"v1791861703078","kind":"published-quote","locale":"en","page":"brand:spotify","quote":"Cant always afford premium","rating":1,"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

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 (825dbc6ca55f…), 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.