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.

“Unfortunately, this authenticator is not supported by the majority of vendors”
Google Play · 3/5 · 2025-12-09

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 3668590798

Proof data

Record hash (SHA-256): 06bc381244b6bcecefed8b60df1ba1732c1ab92502f573ab232455fbcb693635
Signature (Ed25519, base64): Ed2yQSyLkvg2tSgn1swi9tHlZQXsKyJBdgyVrs9No4akYBah07SNpaNMLKsfus68VDDzLx+ACSTj5PMMHILrBA==
Merkle root: 2d5c5745bb08542103114711fd42d520689060248b05b87be89b8ac779cb9fa3
Merkle path: ["06ba1763fc55cb6ab6c84b0567eca0d5f433b52ebdfd021e8c959057c63b5ba9","fb9fe38aba625c270a8dbb663e0aa5fe930760bc0d1bae6d90577c0b294e278d","6d6056e32fd5f26555b0487d6030d37be81b4dd8e85e4f0d27460ece356a7436","f23289d62613df799d16a44d17be9c8e573c25c3f9d74fc1aa128132772148b0","94cb91868e44effe474cee8b06ff463cf556c0968646a86bf959a28c0ac53805","3c142cafe42ea34094a1abbadc7b419245b6476595ec3a41cd6377a6f340979f","06928b37823d208ae330fcb242717fe39b4bb6f6b4b4635115e3d7f7770bcc27","91d5beb47658f62f06c1798dfa0aa95f7a280e3db5791c35c5068ae22a3a8d4d","eb8bb1db815ef7247b5174dc25b274187dba52d65693d84d697ffcabf8570588","871456102f31582918465b7a86ab462773dc38c66d7f75047c43253f0865d7fc","103f1b25b0bbeb9b41e73b1c310c730cf4b131d9746d5724bfcd2f2c2c66d927","d2e7cb1decb48678328a01c0cf84963af42024b0e7e340a2169845cd083c64e3","6559cfb6e02d82e98b805956e4adca3f29c70eccaa9b705ec81b278c9da83d06"]
Anchored: 2026-11-03
Public log entry: search.sigstore.dev, log index 3668590798 · entry 108e9186e8c5677a31bd…
Expected log hash: c5f232b23a7a0d0b1f2817c4d619127f695b0afb4a7021ccbe7d935023a45c7b 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":"v1793706397400","kind":"published-quote","locale":"en","page":"brand:proton","quote":"Unfortunately, this authenticator is not supported by the majority of vendors","rating":3,"review_date":"2025-12-09","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=proton.android.authenticator","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 (2d5c5745bb08…), 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.