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.

“They should change the payment method to include PayPal.”
Google Play · 5/5 · 2026-06-14

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 3240231023

Proof data

Record hash (SHA-256): 1389dc2b0ace6286ca1e05b103130cbb419f2fd601d4f9b02724af3711e8ffde
Signature (Ed25519, base64): 4PWTBiO7L8PHjaEOdQdtkM0fGK5yztAVmnRYTZ17ysWwdnXjzHkTcmlC/oQ3nY1CA/WrYfwO9SyXbb03/9XfAQ==
Merkle root: 888a38c73939ec95e6f226dbfb3637325026fcafc5a795aa4e227b811d6b2c84
Merkle path: ["139debf83da338007b83255e6d98b71baf391b7ec6d096e9ae148b564a79d2b9","b1a50804fc61bff95a54306c612d36077e1e0ac476942019d936c29295967ce7","23b6b7dbb1a7e87f088e756613cf014ebff32a4350cb4b25ed3328d53f241b24","0ef0b5de1ed798582daab3d9fd38c04d1e877fa15eaceae89587a9915a5da07a","8dcf842858095ba1c70669ade269d11fac8735ce69eec08c0e16e448055ead83","7d0d882772c438c905cb65847a4980294688a56e4485cb5156ebd41ddea9b9d5","b5ccbd94dd602c090df076d27660809b31bad7e365f1a83d20b6fed95b45498f","1674b39b3a566b9ece67b36668f19f53b8af4640a4ca049d71c1f22164990c0f","800f99d3d2664cb628574ae7a4551cbfa09d65e1c3bb062b6dbfde5f396084ef","f672d5a3f78316595234cfbe13e327aa77ed3ab9df28801da2321c6973b767d9","c1eb61eef936ab9c32f3a3ac6faa2ef692d0109d56de9f24c4d9e0b98dc22705","062cbbfbeb4fd46f2079783d29fb5f6cef5c48e70dbb9c2980860cd1d92ebf74","410ad2e8ec6f218bef120c1cded3462a092f61baab59fee462fd9704d436d66b","f46648ad2fd9f2769b9fc0ba1c434d2040de67cbd8b7a61df7b7575cd5a9206a"]
Anchored: 2026-10-13
Public log entry: search.sigstore.dev, log index 3240231023 · entry 108e9186e8c5677ac0ab…
Expected log hash: bc440cd3136178aee800fe49b9cf2e319542a645c9abbb8553c6ae1e354ce201 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":"v1791860805798","kind":"published-quote","locale":"en","page":"brand:nordvpn","quote":"They should change the payment method to include PayPal.","rating":5,"review_date":"2026-06-14","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.nordvpn.android","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 (888a38c73939…), 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.