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.

“purchased subscription which failed to activate”

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 2632227861

Proof data

Record hash (SHA-256)

0ec4284453699c41245817aab23bfc3384af4b9559ec20bef4660c8eccbe56cf

Signature (Ed25519, base64)

3WiKQbupNGRfmSM/2ijyAalD8hya7S8VVsnhnrDe5rGskt+XkYDODp2r/4Fd0sUDh3iFeFFNDF1AFNgHMWVeBQ==

Merkle root

9809cd1f65a3d4e144579745a20f7882b635b7ad9e75f8b31fa040fcb7e74470

Merkle path

["0eca67bc6d6bf8f7be611982f71765da3fa0dac09d8d090208a5cb3dc24306f5","8ad504a951a31c04a83fc7a9547983dbc613dc103bb1a42e9111073515e7a23f","a50a86503a5d93c9b56d01dbf9d6fed81c3b15cb9fb4ab2c44a8bfbbed143acb","0d291f081f60bd34607c29b569168a55eab0892cb346d06bb25fd331b2026e50","67763f025dc82343ff9a167fbc3f2ffc17ab045fb3d6df18fcd8c821cd9e1b02","d5c26644e520c733d77e4252e3dcdc889ca817c8b59b5caa9f3345dd967d51c6","0bf8d1fb0c986a69844ea5c82b231f41817c52f240f3fe9a0667e94999dadd40","30ca198253a4b22ec1ba4c2ca5b8504d30bffa715fde84fd45d75e32edab4568","3ce617602fbb999fe6def311a127dd7f20e6ca22ab26998f235a691de75bd9d8","a825ac2c874560ff482a5d3363a1858ef340ba4bdf8a7ef7bfa322036f7fecca","07a027eb2fd4a498e30798d2a1f2b58a0f4b4ecfd380ccd4b59009139ea60da8","481f7ef0a039f0ac74ac45e941b1f75812097a8a1d86b01a2fa72df921bd5f85","c33a9efcd0298a63eaba2136cfe18dd1517727e1b9e9bbb60122216df6f0406f","13cef35a80378a74af4faef102936039d3a54a741843391bcf32134dd8e61270","5420b3c3f4a7cfc61de84c757928b42517e167d282e291e38912f2169ce60350"]

Anchored

2026-08-29

Public log entry

search.sigstore.dev, log index 2632227861 · entry 108e9186e8c5677a52ba…

Expected log hash

8be5978cb1be4c5daa434c41d0072ddb211c64c3f93b137b58c71c55ff15eb8e 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":"v1787972611008","kind":"published-quote","locale":"en","page":"subtheme:proton/ordering/free-plan-upgrades/en","quote":"purchased subscription which failed to activate","rating":1,"review_date":"2026-07-19","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.protonvpn.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 (9809cd1f65a3…), 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.