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.

“it's also incredibly pushy about its subscription service”

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 3665494160

Proof data

Record hash (SHA-256)

000d4d565bb8fc5101b80378e5e5ae1a5f3356f4b7875882ce59fddf39fd2447

Signature (Ed25519, base64)

8bCXOa8iLJDwOmgCBioqvo05qfI7/ynxtaVpXXsa2KU55v44B8qvIAG9XuKR6xCKdNrj2l+rvkhzyiHNKGQpAg==

Merkle root

8087c7bed9871b345d05d836c29af23fc0d9671c928a1e9363522a16fdd7cf0e

Merkle path

["0012dce18961cc56125a692739bfe9adde96a7de7ae2f394e50f9077d772fee1","6dc8ae25639eca4302656a4f0315fe0eb208f584c7da4223e1e904ee6dba3d1a","0eb3fe590509ceb5cc1f7d1c8f63767ecf8685f0c9d9e0845a37836052f846e1","ebc5d80bd2561f04697a67773db7e4d366f3469146e5eb2ce606fc86a51455a2","9acbf1c571126b3b12f670fcef7094f9a6847b9cd30dc2fe52394dea2c20c8be","5d569a8ce1cfeedecfa8b4da835687c46b8d6001ac5e5ff61908c1250bdf6d93","b8e6b47daac2c6754bcef98270c130558d738a3d2f53a1827e91a829d7a12b11","445de1d7ed5791b48f90d649177c1e84edacd4753ac12c5423fea801aab0b18a","3a236cbb3190b8444c7569b5f6624fd360f84a24b55021429c70507914cc7237","0838a9a6fddcab03834a8048f70f2f7789f143d2dcc544e39ba9da3284b781eb","6e2640ce84e3b713f04bcf34496a1552476b46f4e238c52c22443df0814749b1","dd1e9344580a7e5c84f178c6d6df7060143e5ad383d351d54b23ad5d2006a175","ff3de92826a51b26559d771769aacc55c0c29674c4624825ee4c83324e354262"]

Anchored

2026-11-03

Public log entry

search.sigstore.dev, log index 3665494160 · entry 108e9186e8c5677afd35…

Expected log hash

acb694f91c9f21a2aa3937fe2dde51ea325ba950847651b126189aaae43ab56d 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":"v1793698916160","kind":"published-quote","locale":"en","page":"brand:proton","quote":"it's also incredibly pushy about its subscription service","rating":1,"review_date":"2026-08-13","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=me.proton.android.drive","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 (8087c7bed987…), 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.