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.

“Premium is inexpensive.”

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)

87a8d7dde40bf035161851da4ada4e35e6fa445373cec3ca43e4cbc7a204fc3a

Signature (Ed25519, base64)

3zs4oI1GjDkTHOllSBy9mljGA9HSkGc1shdBSVn0x4w3CLbHsjjDqb9YtZ2T+4Jlw+B7NqwIl1SDtf03dDT9CQ==

Merkle root

f26292e960b34f73f9768b4afc64585e265549d794b35b8167826c2bcda92ef5

Merkle path

["87a8bfcd0ac15c0a7884dad41b99be2fb0a8c84b0cc476573e3ba5667de8fd09","d003d84d03b02c88bb00312337c93edf171911c4fd6527d1cf304327c4f0a62a","dc0d0235fd72b28495dd276f78885cdff25c24cb973410f94b48a38f9fec9e22","1d859469726039c9774f99af85171b93050187afc6e36caf05b536ca8a0c2b42","ee03564242d09dc5bfe69a0029026b319bf051ac4e6f2ddc448de9a73a2116be","ce34d4464d02b41692c03013685f07e110393becf0a47cbd3de545a66c37c2cc","54aba5d0ae13dfd4b806c672f770ab84b24cc44eedd031aad01be5cf147f068b","4990d2466203e4ed5d01415f566b158bd45be6487b0c91f9419b5cdb77db9b59","3fbb2c256543f07aa3221860d2472964d3a102ea0977dd1f7cda86972bd7616b","6a8f4728bd1416f7f3a9abb98007383bd55bf8cbab790e5e7c590f2ee7567706","1054efdfb2115116a8e068119ec2ad28cc3b6a59dde338587abe3eda58fb6cfc","9a9aacd96a1ac53199b2b5828545bdd6abac29af29da6dc5f9cc3106d65b75ac","ff839efe243c09faa45172bad7cb61d9b7e0949040c580ec02a160cb61e2c279","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:deezer/price/en","quote":"Premium is inexpensive.","rating":5,"review_date":"2026-09-16","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=deezer.android.app","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 (f26292e960b3…), 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.