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.

“Standardmäßig wird in jede E-Mail ein Weblink zu Proton Mail für Android eingefügt.”
Google Play · 1/5 · 2026-08-12

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 2582700609

Proof data

Record hash (SHA-256): 083ec619fc717dcf6cb01d1d9d040c56690b6138b68637e1e4f25f308afb8479
Signature (Ed25519, base64): /POZop2XheK2cJI1+pdXqbVxCQ877WbGwbj9QwPf8bfw305VrJ5d+Y70H0Al0aEUJetyxWa55p3pwpCK5MafCQ==
Merkle root: 653f52f612dd7654074ec2f50a8258d24363de118d24fd3fbb293c3f9466146a
Merkle path: ["084703a327e83245224980a5c9b8efaa3ece1d3d673e58338a25c82198a0cdc2","883ccc9a8d6529961a1fcd515fd58755b11b4f484c04764a42e9311d5a8b5052","5bdf9e5527960c02542da3f0f3756b46645adaba669313405db89de953f8002f","02496f84ce5e8ee13dea735156aec99e79b7c19b8d38448c78e45e00e35df0e3","ad31a76b92a23f43a48cf916e543caadc2838e5ee0eaa3b2f9fb482e6b80b60b","6be8e15f2cc9fa13ad05d9cf90fc88afdb7ba0ee01a423be31f403b9ae92c309","45083147e9cafb60144743318049ff852d182299e9e324de2583e2450fee1f51","5966366d4819aab6cec32f4e49e484a1f181528f165ad257c891cfc9cdc13472","9de042493ae262ce2ada432ab8ce806c99089a134fab9ae1106f08274f487c85","6fc6e7592732ca5bddba993395de6ae96c1bfe6e70807602b228978a1fa30748","e56204f1821ef0eb64f6695ae10ec59c473b495ccd38e242384b49da4e461f80","f20b68e10c9d60c824a39dc128151a5fb0347bced725edc264111d1392a6f092","9fcd88f1beaa69d65dea3d04b431d43ad97368c1462c24ff050124283ec46f78","88e03340b0b23badae5a3021870a121b2e386f6ec4446eb6072186f7c59cabf0","5fdd4fb85b0ec398c42530ef65e986b74edce2f5c14068ba5fbe6a72c94b89c8"]
Anchored: 2026-08-25
Public log entry: search.sigstore.dev, log index 2582700609 · entry 108e9186e8c5677a119a…
Expected log hash: db705c1ce83f047166ef3ebf3406f1398f685221ea16db9703eceb49a1163aa7 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":"v1787633403760","kind":"published-quote","locale":"de","page":"product:proton/proton-mail/de","quote":"Standardmäßig wird in jede E-Mail ein Weblink zu Proton Mail für Android eingefügt.","rating":1,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.protonmail.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 (653f52f612dd…), 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.