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 practical application”
Google Play · 5/5 · 2025-07-23

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 3667982630

Proof data

Record hash (SHA-256): 56f2b5d9de2fe9d3e49d3769c80c524a3fb946ee992859f5c9c2e570984bd211
Signature (Ed25519, base64): t4JcMEUSsNlnDFhN38e/Q10/7R0KsMjTboJmEnI9EgosZjok9OXYKbL4MzUlHJsoOKeY6illv5cD+Fe0OmuvDQ==
Merkle root: d73d08690811c81c8d5fad65324be4693c01a2aca1755d426ed86660151bff23
Merkle path: ["56faf1035503117198624ae05e08e2e2e12942e936d066c8acb54e2d1255064f","eac9067040c39942ac2ca808658922f96b08dd4139d727f9052bb19012443c60","ceec240b4fd29f0a9d6abcb7861004234a58493a4362f316e66b36cdd45a8bba","25c5dba5f1cea3fdfd0c3d64d4106e1a24e429d699218c19986a26870ab8f444","9a8078919a8bafc3efc56a9127019f8a3936f25f42251ff388ce06e155e91722","36b7177ea4444be0e62d2c4abe1cb33b6bd6bb2cf506be1dbaecc2eaf62565fd","c7fdf18ff7b68da709760291a0c7ee582f0873c7a7df61af4d3e4b84653ce3c9","2756d32a38577d90caf7ced800ac24875b8ed2a0fcecd5fd25f318701441c8db","b3bdb38d6c5530793b04d51a2f894dca8084eb91947979d5ec5756a3068805f3","6f5dc513f8744e9e794cdd9856e65d1312a2a3d52a47e11116b4fb86479c90e6","c588b352a4bf30d69b410974186342e93a1fc4c45d78ee0bd3d9abb3e8804742","3102d5dd8b31c235025bda3caba3bbdbcdd19badda2913c0442c393516ef56c2","3fbfcefbe1233089f918cc9e7ac6d44fa339f7ccb302cd07cbcea4200db9889c"]
Anchored: 2026-11-03
Public log entry: search.sigstore.dev, log index 3667982630 · entry 108e9186e8c5677a838f…
Expected log hash: 5182f3d0ae634550e25d5f8f78d800f39fb338d1b74903dc2e1fe643547a5358 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":"v1793705160515","kind":"published-quote","locale":"en","page":"brand:atupri","quote":"Very practical application","rating":5,"review_date":"2025-07-23","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.atupri.myatupri","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 (d73d08690811…), 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.