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.

“Can't process the refund even though I have the receipt.”

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 3199173952

Proof data

Record hash (SHA-256)

326d1e671e7c530cb4609fe6c32989e2ece0484f7afb5ba61db64e3a8f188713

Signature (Ed25519, base64)

l9wwCH4Zr1lQ5m3X48NzF950CyOsgwYmo10GyKE9i7vXm0Akz364Cb4R8RPBqRdHzJoEsW2o9LvfipiO4E9qDw==

Merkle root

ffbc979c8901fdf55f43c5151768b18a738fc1c271c9b2dc97349c3fa8ed35d2

Merkle path

["326bf26deb635761015a2359144faf2d18ce5f68c5ccf0649e8ef67e9aaf335c","09bbf83954cf89628e7185dec9c672495c9d4773ef22f46791bdfe7b237aae2c","130bbef106fee0a9774fc3b58faf6fd0fe2a3c8bd63adc9acb4a58ecc9eb08b8","2b82aa4499c6a31e22c1f2168af146ff1502e511c3b70c1512fb133acf5935a2","987d66ebe42539c5473f94d8e61ee7552706dc492e005565c93b625e30442e42","3355666b4c602e34ceff72b278ecc46ed675ea03ffad9e9f25de56a313882dec","a85747c9d5c898f23eb808a40dbce529c5c54c3789f3536e5d20afd2ff360fcd","0c809ee1da32b9113b109f3718a0884b05b6ed2c15e21a633c8944fa12b2e30d","358c66f01c65c83bf3b92ea0c57732884a155f4e10b056ae09e247dfce679845","cb68e25eaa9def993c0123faeb104ead7ff1daef80d7d1b19f1cc5a02704f90e","8f7e44f63df1c81224df91ae9dd234c6f769daaabc106b597f32f01f2ca84605","7db894157ed9dabb03cb2365fb7f1c3175f5c464a5f6fd3024b83b95573cd6d5","81757bca5afdb109f23b2b1ab2e08f434f626af25e986d2585973e2409a82e36","2f35432083547a52411b4b8128ab118601abc6a6e158a38894add0923255dc0e"]

Anchored

2026-10-11

Public log entry

search.sigstore.dev, log index 3199173952 · entry 108e9186e8c5677a85d2…

Expected log hash

3bc66074c7b0a853326bf5ba0590a111eee6455dac5c98c791c22eeea9a48920 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":"v1791689192448","kind":"published-quote","locale":"de","page":"brand:spotify","quote":"Can't process the refund even though I have the receipt.","rating":1,"review_date":"2026-10-08","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 (ffbc979c8901…), 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.