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.

“The reason why I still use proton is because I get a package that includes email and VPN.”
Apple App Store · 5/5 · 2026-06-24

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 3668944551

Proof data

Record hash (SHA-256): 0393db374fd29ae753d24d2953c149ac3a7b8b70c17abfab4f93440169870f78
Signature (Ed25519, base64): BekTOYCyTvk4qlBwsXWnsrL1KT2UA3TuuDIMnTfahu0tSpKbNOIoLTcN0U/dZkAMfsNc2JoFZ731zz0Ik/8/Bw==
Merkle root: d8f145f4dd25b18e2b87daaf2aeaecbfc54faf99bd3bfdd8f74aa4efc5886bf6
Merkle path: ["0392e45159973be929401a8d96641efdf3716ac197247de8729edb0b7b220459","5b8b3d86b748f2c96ec387fa3693312cabcad82e412f69f8913cdb1a77feaf0a","da5fb860cb2f654a9b765cd4310192b1563e03b5d8384e448ef6aaecbe8a9b68","a0b9538b12b8150bc56b488d55c52e8e76b1f25d13d1a3bd2004c4074569adc6","f7b63d5674308f21c5cfbf4503d5b6bceef62b3e7078eece1dd247e27c94a9b6","115d1d89eafeec63f76e2c15d253b1b8e380168491bec090a5a6219fd67a53f2","da5cf6c05a9637c6cac02dc82d47ead6b1de5151c9024508a122efab5d2658e8","17afcb2f2d5a853ca8dbd85c6234cc871d99a0f7b8926fef76b62575321a2dde","c49b7602c10b14e0552aae42d086172f8da3886a97519fb48bcac531f94e199d","1b5e51717df5dbd79e213b899204d445aebc84015ef81819b768505201356e27","201d44a330ce43627228498a1a6d2056de77241b782d03c819087e11ea8adfec","2e900c12d34400e39fc8c3ebb99077c31758e236ed2350484065df834f416d2d","4a105e509823ad7c5361d9c34172b0c0d78481a597dbc352d26fbf6361d15520"]
Anchored: 2026-11-03
Public log entry: search.sigstore.dev, log index 3668944551 · entry 108e9186e8c5677a0e24…
Expected log hash: 29b4e6eadc957394341c639515bb23b43b99093d34033c988619822df54fe84a 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":"v1793707472796","kind":"published-quote","locale":"de","page":"brand:proton","quote":"The reason why I still use proton is because I get a package that includes email and VPN.","rating":5,"review_date":"2026-06-24","source":"Apple App Store","source_url":"https://apps.apple.com/us/app/id1437005085?see-all=reviews","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 (d8f145f4dd25…), 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.