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.

“Works wonderfully.”
Google Play · 5/5 · 2025-01-26

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 3247835674

Proof data

Record hash (SHA-256): 73ad0bac7a5ba67f3e79e88d9e0aafe92d902c21816c29b84c1d00fb187c91e4
Signature (Ed25519, base64): C+2bcbGRfOYm2sewx12eh00hLDVzbxKTh94vGo3/X5YOPt5ndIx663fufU6XlGgfU73n6eYmKor2OhWUjK1rDA==
Merkle root: 8af5f2f3f65c47a75dcdddbf363e3e76b22d37f4e953d150fcfa3e84bb04dba5
Merkle path: ["73af23e521263b12ad7075ea057ddfdace17736f0fb4c616f855ef7ee5a21e90","b99c6d5e8b8d564b2bbfea59cdfd339d9639f25f8b8a41d5ca044845056f4146","912263d6b5294806bdbcb3aae875f1c80e79fbb04298158711beade8782e5f2d","72c91352599cfc80b858c44a7322e7004f84e9ee0aa24cfe005660db823e7483","8ccbe75da429e74380227dd23f84444fa65601f821d7fd986ab39d2baf662c05","72f988eeb4fda0ecde8e7dd2695efa0b7e0f3f132230fb3a0dbd96463e9ec031","6be1ea58c9fcf3af3c12bf63cda929b0244a8cbb7f24b5c982c24b53999d1477","137aaaa4778fd65ae0784e7a5fa4036216c453d1bf5282b472d20d33fef672d7","325f3387f778e24d0744fe9d073538efaa5728f67507b8c859dae5077dec15fd","8fa32dacaf997fa376983d8e3a60b453f95fd76ce0fc63a6a94724c4edae9f7c","fb7f8beb9f5db8da3e2d8125775121d6f5be8bde65daa68afc89f321d0ca5cac","c6bef26c9832ebee691d9e5e79ac3f09c47c5adddd998b253ce9dc9c5215026a","ca53bb02d6141e643f6ed31308c81b637573e9670fd5927fee4b0b4c185b59c7","2212eb5ff51e97198ac2cd6542275dfcf712b9be9a8fab294a9bf844689bcee1"]
Anchored: 2026-10-14
Public log entry: search.sigstore.dev, log index 3247835674 · entry 108e9186e8c5677afded…
Expected log hash: 306cff230c51a4aeee6711c8f2603eb2af6985e8dc9f5dc959efafe3398b8caf 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":"v1791944613264","kind":"published-quote","locale":"en","page":"brand:anton-paar","quote":"Works wonderfully.","rating":5,"review_date":"2025-01-26","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.antonpaar.homebrew","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 (8af5f2f3f65c…), 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.