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 when I come to google store there is no option to update”

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 3241084060

Proof data

Record hash (SHA-256)

1965d1b8636940b210157cddfdc8c23d8f19c115b0e90d1716387884b54bb5e9

Signature (Ed25519, base64)

MQTZsZOU8qQu0fc4CJ3Qc5qG8fZ1F8/MxfhlJu7lZXe8RbquBh3Vu1YTXNxNvJeXDFL2ZXDw5eo89zLOkiSLBg==

Merkle root

0b0c0499033d3f9b3953d31e6c838f88f12988dba810dd4de44922e1b60fcdf6

Merkle path

["196815dd8d5c86dbfdc662876fda6c5b919d7559396175fc982c23f99aeef5ba","271c558837f6139a4484c247863c092dfe378fd6fdbe757493556b741dd0f2a4","9cf007ec317ca24df655316a128983191ca8896e09e6c0e1b2f69a4ec89c14e9","42f45a5c7d8ea78667e014e56d564f0a23c15951e8511b07dc92d4e25b8d7a98","54f6a95c83de3519cab099193d5c5da09e2e1d94ade147e2f94d0c9c5245a73a","9b5f97fa3e844c82e52c39a358a4c57e01cd2ee761dffa622748257bf6158ed4","12c9b6380457ebb21e159e20bae274b73e29c3c7907269379a17b1215f46c514","d12d4615d5cd3840b1fb16c6d9209b1d1793bfda2c0bae49f2faf4990706fcc4","0b1fa50384e01bb94bc1df49e21512b1c7f48fdce160c205e471be24b501b6e5","ef1d89253fc65afadac230062761b4cb25b111a12d29d09a6773aafa6c6725b4","97bb581f373ac1585fd287a96ec92f37e16a17e7e09f4b197ef739b8fa5c9cc2","fd4caa7c5bda5b821309f24a41bde8275c1fa51be2629af50c760cc53c258d5e","fe7751fa4b9a0ad43fe0710628b6cb1b92e12eb8a60d9f17eb0c0764d693577a","8a05b9e19287b30c7fb54816a1fb848939f3f2c84b9825f19f342683d5db13aa"]

Anchored

2026-10-13

Public log entry

search.sigstore.dev, log index 3241084060 · entry 108e9186e8c5677a3e82…

Expected log hash

a291e2473f1a4510a666e020d4d424e463d55bf4677b91eb5a52e446e5ff1581 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":"v1791865115768","kind":"published-quote","locale":"en","page":"brand:pia","quote":"But when I come to google store there is no option to update","rating":3,"review_date":"2026-08-08","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.privateinternetaccess.android","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (0b0c0499033d…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. 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.