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.

“Ich bin froh, dass ich Proton Drive gefunden habe”

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 2622459130

Proof data

Record hash (SHA-256)

0a22da57978bf8bb94fe8f0475b6f0c1f83f10dd13a60dff84ad6cbdcc50c8a2

Signature (Ed25519, base64)

G5Iz2iEnABEAQmXqgDc8BO2J10zGXdoMK961C9PzxhIAV6JBrNxXW5ptZd93+2jfcT1yyRwEIjskQz8Pl150Cw==

Merkle root

79bd9ff30206cd9f2f0827e8e360304e72338e2a6538208f6a795ac0d27be440

Merkle path

["0a1d81358180f19f6919917aed5060108f19cdbac28f89988e6ea6d6ed069ea7","cdbf59bf8f726de658466ac9056ae80f402289d9efe356b6af4e726f4304d0ad","510a7f2cf0453af2386e6da55d276aa403f77d4ab69a2bf0c12ab020ca7705db","a3ded351532b0659a39f956796136812c2cbc54ec72ceb7033aba71af434c66d","387f0567ab64ad249b34caba86105dbbf0f079572b2aa18a37d92fca71d4b343","bf5cc3aec20be1d1477b4f62efacd8264843b2d6cc63f62f0c9b394702c0f447","1e7a154364d88812445bde54ceded4be03835aa53a167c13d201e96ce9d22936","d4ba296f1c9001da698c9789a53e9b922ca38c26ecb30f63c597f588a86c0907","07f2823acab42f6f12a9fb416a8970e151033b122d8e12926cc206700ccebc8e","24772dcc9501aa0cf88b045bce74ad7074fb6770d0481e46344a6478765784f3","2e8df81630c8e1e50c781be59495eaa44afc71e72f4ae7699829be15542526e1","7acad3c67c891824f9b5dda51b63df0ebeddf68cc289d09bf80bbb1f6db52c3b","e31b3b80ffbe5d0f34926e33a057ac1ad2cacbee2c3c16fda9c5e9f8f02c8f71","9517b19f1f7a37f81f00e84018a6e59ff930d698129abc0e98c33f230cd4311a","02039d4391222bc60d104b52b52d2b392a39e81902cffad1cff65a2d43c0dfb0"]

Anchored

2026-08-28

Public log entry

search.sigstore.dev, log index 2622459130 · entry 108e9186e8c5677ae09d…

Expected log hash

3805ca9329ec46d2400d87d224f109e9431be016decc34dcb30057abc3255069 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":"v1787897541116","kind":"published-quote","locale":"de","page":"product:proton/proton-drive/de","quote":"Ich bin froh, dass ich Proton Drive gefunden habe","rating":5,"review_date":"2026-08-04","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 (79bd9ff30206…), 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.