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.

“Great app, exactly what you need to do your tax return.”
Google Play · 5/5 · 2026-09-12

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 3177778280

Proof data

Record hash (SHA-256): 6102b5865bb1dfba74baa9ad082a0f841e08fd97ff3d63ab769b38d8b6150587
Signature (Ed25519, base64): v1qXGr3ymV3smO+HcV3oPu4eLw8pGTwg5yE7C34qcLBi7cRXiXff5ng1sWwiMUVed2DVKWlQWrGYtuGj2lwkBg==
Merkle root: 9bf5e8bc71b8f6d2ce627972b9fb81fedd792f7b02f32eb60fb8da440673ef59
Merkle path: ["61061254b68cf7b8ec6b66c4b8f95ddbff8393b040448bfc5e2613d30d6b8903","41d56ccb6c30ea2c119ae6d5268d50442f1a0ee8c9b8bbd53586848ab1bd53a4","5eaa81bb420db5509327ba5068122c087eb7458066bfa18b846eb1ace9a7edd9","5f40cea4c3712a1f38e16bd29479938440c6d48200723c18165e8322db3dc688","953039f2269b462fe3f7198ee38962bb5a8cf2dde5c47a0cefa9394a6baf55d2","16c1bd70dea2ec337d1b2029a89312ae5e5bc0fb1b1a43ff255b79a42613a6a1","43639c3ac19b87a7a713ba71104b96cbc60ee360fd6b3cff99a02ad53fbb4fda","1eae7bcecc80c3843cd7947c7f5e5609f28a87259457fb790386ac0c6fb89d9d","b521ddf730ef11d366969aa223a21b67e8c0c29eff1774f3fde84a3faaadf001","973420a28cc719c4bee44166538ea268b457c544f32033de591e7a2ab223679c","5cb0e7ee5b3e1859d68d1ec83cec41f6a5214cdc3bdf1fa6a5cf3447a085a0d4","98385ce011c3a83273719fd1d1b63457c709d42038183049aac393c084de4b07","cce5dd64a2ee4e7e0efff191fbfc9c0d6e8d177df971a1ab32c2db3f02c436f7","09f662acb98b118c251b87092b3ab5baf38f48e2410961a49013a1c2f63f4cf6","1fa7003be7676d7952d939a45bc47245b2ced828dca06428675c885e312c802e"]
Anchored: 2026-10-10
Public log entry: search.sigstore.dev, log index 3177778280 · entry 108e9186e8c5677a59b6…
Expected log hash: 6b6bda8efa0d998f344024bc1a70908bd21604d8857c81e0a6e6c5b1de7aa565 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":"v1791603230890","kind":"published-quote","locale":"en","page":"brand:taxfix","quote":"Great app, exactly what you need to do your tax return.","rating":5,"review_date":"2026-09-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.taxfix","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 (9bf5e8bc71b8…), 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.