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 can easily find songs from all musical genres”

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 3198489507

Proof data

Record hash (SHA-256)

219bcb8b305b92e4e7af7110a23b78a0e78ffb4c0deef0e172696a5ae11798ec

Signature (Ed25519, base64)

Uwzs6eIPwhx/NmBru7bOsSap9MBV0HVAUew2dbbFfj/I13kukPvGar9Z7zDfbKNILzroqkZOa8b4VUR0Y5/SDQ==

Merkle root

240cb93491796b59a812f7182e64c43781541345e454701e4066e1786c286494

Merkle path

["219bafb2e363fa6950f115ceb09901cd0ee5565bd463ba137725ad47bca0e40f","c40b49e89ebe30c16312ab72840f627f9aa64e6687885ec16bc717c64fba5111","025612c94c9b6baf0c061db778d06ad426104f1496a7e96b5b36fc1fda708f53","878855698a1a9b5954ebe79c53bad09c8ea39e861af2a72ff21c943f3f8c7b90","8d7ba03d03c6b6f44880c87d68cf5c334c37b5861214c73c16c1fba6a0154886","2f9db22cecc9e0a12db1146d1c3425e91ce7dd80e866e9c818878fb29212a8f7","b8d3e949ef89203070d63fe5ed28e86a027354b6171e048dd05ac337d9321908","467d0e1fb62ded8a2d8bf37202f703231ef8cc78c2315763ce4f6ae4f6dcaab6","4f1d4dc0302ff41758fffee0022ff7cb2936d80914d8fc82c0f77e562d8a2f33","ab0bf93f46aef8fa3504ecb27db0d3a759fd30aa75e3da7c409d3ed398e929d4","5875a01980fab1ed428afb1225d64357cb880ae3126d5a5d3a8e239ccb3e8480","ec9ecaaf6ecd25e70da3b6283bf48b73edd2937bdffac512199306f1e5863dc7","7115b4e40dabe303dca48b39285385aef0729dc23733c818e0f3ca68286a3ee4","0d65160dee55e809fe06e5334fb3150d04f822ce1cb47b2ae30b5d21efdf0eb3"]

Anchored

2026-10-11

Public log entry

search.sigstore.dev, log index 3198489507 · entry 108e9186e8c5677ae5cf…

Expected log hash

50393c13ffd4f8ef4c37424a8293b422d8c3ecaf6b9593225e2bb93e0cf2c210 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":"v1791686710415","kind":"published-quote","locale":"en","page":"brand:spotify","quote":"I can easily find songs from all musical genres","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

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 (240cb9349179…), 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.