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.

“drucken wird verweigert”

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 2680196100

Proof data

Record hash (SHA-256)

1530a0b520f0b308da1d6e0a59d4f4f44c5d657cabcae1aee14d7f3909db501a

Signature (Ed25519, base64)

c7KU8E7qaYSPFaaBQ/gYmceVePlQIseW65LO/ey69Y1Wjd5YLqncznG/L7l9kuayP1/1Qf5gmVAavQ1omEaqCw==

Merkle root

275d3a7bd3b2548f01857c160784f16453a0a9c996b66614d8cdeec586b712fb

Merkle path

["1532c1bc4d230311a9f2809fa9d3ea8b0284a423a5d8f7b29a2f51b8eaa05dde","5c005ddca244859f403be05cd218276f044797e180bd23fb5bd4aadd09efb1ce","c67bf39c1674c96d5668e3d1f335f291a1fe22d3c4542e7307672da14646be26","37c668d3f21bb8d7ec4a0e8ea284b8a658cba4a8fa4b2b52fd192b82b04b78b8","068b4d1a3656705b5626d58866fe382556cad3603fe3be15710b5ddae7b800a9","ef25b69b439bf262fb092d74fa843bbd131105a52e5569188a658518d06294db","d00cff8453b4151aeb147b01e1c869febce08fb6ec5db4f3ac7ead1246d28c47","87c37c4bc119dd08adc6f6602787f02fff799055f73b74bdacc4758dfea79e6d","d45c1355d62830e6fca78794fce647fe9412d95719b9c55f14af764be4af188f","a9eb639ac9899efa78e1edb76d28e57702835853d27d02f2f8d6a8fd9f14e842","ec8d9d652dcac551bd74c5c0aa514823ff5dd003e5772479de64197c46e96040","f30e5658872de337a0e33658916b021063e754bdad9b53631f7875231ee59950","b21dec113c874342fc7f0cad3b2328bf067a662dbacd23b8e99866fecc9aeef1","100ea021682a9f8dea776f80ae39e493f0563b42b8ed66185197735c0707527d","10b28da69907209a24684830a0bd8a8ebb92a2f0df9669726e5cc9862c590727"]

Anchored

2026-09-01

Public log entry

search.sigstore.dev, log index 2680196100 · entry 108e9186e8c5677a3513…

Expected log hash

6a2ff8b2a4e161feae5c2214e4fb7e60d1d5d00c6fe677bf39a90f4ffa8fddef 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":"v1788293890698","kind":"published-quote","locale":"de","page":"theme:acrobat/ordering/de","quote":"drucken wird verweigert","rating":1,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","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 (275d3a7bd3b2…), 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.