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.

“But it doesn't work anymore..”
Google Play · 1/5 · 2026-05-03

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): a5b953bc7d8ae4ae5d8c73e5e1efc6e2a16975c93a4471403a882cf2dd983bf6
Signature (Ed25519, base64): fHIdeu7bUAKKT9c66uvuoNiZ+9w7W2k8lQXz1xf4+9xmqFI2d70yWui2g1T4W95clqIcHLEDdOaNoNuWVKEgBQ==
Merkle root: 2f068f3de56bebe7a575ba4a979c9244445d2350140e36238e088fa40fbfdd88
Merkle path: ["a5b2be8dade3ad7aadc1f507a4ef46a13f4198944bcefa6a11328a14bbadc96a","36af3d8f7bdb7edef7accd61049a3afa026fd9f3087115505d969b0fbdc1b4bc","c8011a99d2467940b07da20095b23c77ffc8388ade8039e370a2f8be80f79bfa","9e31f295d8926c32c13f1f672360d09a499b2552c66a4496f431eb9a96082a8e","b73693ea0d7cb7bdbe313d78e55113c98b5fd9ef6f1fa1f0245c5794a1b507e0","eba2f98e4658ff3a27531246705d0b4e5d54c9b33ff4b80c0d12af92d24e42a6","3cea4d9bfed840b45ce3ca589a251c81b7c1cdba46620039b3708abfa6a48fba","d9d70772781459d434f70f3cd0ecbcc027b25e134c1338ff7071c299692b6523","2b6cc0758b228cc2cff77c20045d99cdc0de54e3180f3170541595115b4b47f9","ec5ff71edf851c0ea79d6a088d5170d354edad89df8a94b07a93bfdb5431bfcd","38d792e5ef64ac3356d93357bd9309dcb9785c5c2c5d07379ca528ac390214fa","c22fe83bd144008efb96895e17f4e6f8919a56dd8220cca85f3aa44cd67de0ee","27978d996981aec54e7305bc9bddff422c8ed02487f8eaef12f84d0b2ba90b9f","537f00dd60bfbd8c049786f7eae4da8a735af5b60dacd3bc1b6054b8ac3175e3","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:atupri/quality/en","quote":"But it doesn't work anymore..","rating":1,"review_date":"2026-05-03","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 (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.