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.

“The GPRH1000 O2 sensor, Nightly Recharge option & solar charger on the watch DO NOT FUNCTION!”
Google Play · 1/5 · 2026-08-08

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): 0993a56731a81058809fa11b19dbb28661d7279619b82412a59e94266e606b1a
Signature (Ed25519, base64): uPY1RnAzUPasK3txdr3fSuCWy0/szLVXDm+MG4JZm5tqQe7i64grzOcm0yIjY0Bh0DmojB5KW28GX+PeUf4HAA==
Merkle root: 9bf5e8bc71b8f6d2ce627972b9fb81fedd792f7b02f32eb60fb8da440673ef59
Merkle path: ["098bcf22f1ae9979842525a739d929ffd6228e857f4623c6c605b1978cef857d","a7c2113b31eb6eb16144cf330c599500d9d5998e3e1eeedaedf4a7e97260cdd4","ffc1de37a646ee5fc0611d4620d65bd0e73ab5ff1f6b55ee52127ebd4afc3062","d14fc043267b8ddecac76f37b260bbb859f22dc4720c1de104a57f36ff2ae723","b771335d9be400da6aef5dd62b52f5d8947eb3079de401f4172216672a46dbf1","148f3477a656fc2a7cb4d8ad7a36d69d13df045b5c6e834848e55a9cc8f4f16a","9a31dfebccc1604004d4369d62417e1adb4815c3582820fb3ffb6122a3c097b5","1befde8567c310d55b58f99d44556da04da7676b62674bc90362172b6f7c2a47","61d9d89aa410818d66ebcd19f6997a7d6dfa95b32595bdfd02a2766c0d9648e1","4c74e9f9cf3625aedce4d38b81e57fb7b10c76aed16235542dde7d19ed27442a","e24e756388255808136a3b072be0f16545622bba2beeede810f3f5e2119f9c3d","2c88cc21ee082e07ea2f20480fd1ac21fba3c798dae266ce57e363aa3da5709f","fb42483682b3119978267e05c9c995226602ecd8627ec630ce52b285c28faff3","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:casio","quote":"The GPRH1000 O2 sensor, Nightly Recharge option & solar charger on the watch DO NOT FUNCTION!","rating":1,"review_date":"2026-08-08","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.casio.wac_app","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.