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.

“Invoices can be scanned and checked directly”
Google Play · 5/5 · 2025-03-29

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 2893887498

Proof data

Record hash (SHA-256): f9c1d11a2b30aab3cfff3e04f0a834ff8af2f4a5dd61c934fd77ca16cf374c72
Signature (Ed25519, base64): GjWVvGN1MrETIU1AaaF3uKZgcilGcBuPtElN5mGAZ3OdN+Yk0w7ak1t9nQ0cSla4VzuPzAdN5MpBJJPukwP5Bw==
Merkle root: 2f068f3de56bebe7a575ba4a979c9244445d2350140e36238e088fa40fbfdd88
Merkle path: ["f9c26fa7a3b988199dde46b4f1b22d30ecf125fe2593097f4f8671d7837645a6","580374db0089fed2b348b7812422fd83b57f9b437ce00a17068719141b5955d9","8bcdf45236161fa4cea5e0e3b1fb0ec5bd91e5fb10a2e68aca9c3420cd15c288","74cec4bf15e15780fe8b28ae750b5186f2051bfc87d9dfdfb44bc0036b3bc004","35e06c579d5da4e7a66e845e17da252fdded9ccc9b54d93fdf6208eef0b026b8","8f5a38e0e9e180a93887e13095cc499d6ac4f6a9be8ce3334bea373c447584b4","2287607c2eceb9d133c490ebbd8d5ed28074182e10031a8d9f83faf397578e60","9a5f354ad65574cad66015d9fb5f991c4640efcc5b97af118d1591cfdd21c42a","700def2d3e841e73b49d08f83c21849f560e2f60b557262d690f8dacad3c360b","609ad0ce546cf9c3d27da7a004290355c1092891631352ccddbf2e87ba53177f","21d92fb6a784fd2b7dddd5b9904a35859b73f0a7e827d510b7a7e106bed3f23d","71cd50b067ff32d173a37554b8e65642cf533aa669254bc42c5be6ecf57ec03b","34bf35d805c4f7af315854dc10a7a10ae0ea054d46dee40b360c3f04f8b8e60c","58a3dfc9ad8696e92f5fc9960e9c6bc4cc04e270091b574a948593298b33d1f5"]
Anchored: 2026-09-20
Public log entry: search.sigstore.dev, log index 2893887498 · entry 108e9186e8c5677af79f…
Expected log hash: 90099e0300c6e23b62e79318296ebab91bff130379d248ada57f044f77e72ccd 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":"v1789796056710","kind":"published-quote","locale":"en","page":"theme:concordia/ordering/en","quote":"Invoices can be scanned and checked directly","rating":5,"review_date":"2025-03-29","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.concordia.myconcordia","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 (2f068f3de56b…), 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.