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.

“Very good customer service”
Google Play · 5/5 · 2026-06-15

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): 406e8184283552d9fe09df90f9a651c5f60f2b1c8fe0b84b5dc7632675b60542
Signature (Ed25519, base64): CAj1aGJgyqYf+VGfZ3B96NYZ6/zWKEvcbTULawoeYLhHud8GmJHFFcqapgWTKcwbF8yu5jGTLSiLY4R0vS0bBQ==
Merkle root: ffbc979c8901fdf55f43c5151768b18a738fc1c271c9b2dc97349c3fa8ed35d2
Merkle path: ["407175d5b0d95ff6e852049657b1ce9e832e2341fdaad26c49e616b56845147f","7007f50bbcde822de87cc853aba5c0de44adee19aa97b7ff41e53ed32c315610","fae4cc5c30b056d6c729d9ef03a0128ba0f6c9e9d7f0b407d86073dbdb291b00","fb40f661e2c82b0dde2e4d8e2a9d274e71e6f8e0833c9a5f7d501479672c1631","d1ae9fe7e9c2b9d80c6a5ea7e2bdced9e61e9b930d2dd1e55ac17eb3832e47b4","8386e69bcee71a8428459a5c18844b0cd4d4f3e1dda92f213dcd0c3951937c29","5da61414367a43c404f1ff5132b69fc0a4d782adbb0b2105084142442e93af23","1532e1a8b690213b4d5e140cdd4b69e9a75071af12a6b52194df522c7ac5ba17","d6c7ce046f8ca24303ea1102960324d1b942ca3239c2f389f7c75255c6c33391","9e0e5cedc5103a859e068873c578f091de27b49033cb7ce2b08b7c425b60c7bc","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":"en","page":"brand:quero-delivery","quote":"Very good customer service","rating":5,"review_date":"2026-06-15","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.querodelivery","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 (ffbc979c8901…), 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.