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.

“die kostenlose Version passt auch vollkommen für den Alltag”

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 2670724217

Proof data

Record hash (SHA-256)

1ef0ba2b6015888a3ecdc786a2da0a480956a65a6efe8e21236c2415a741efda

Signature (Ed25519, base64)

70Z/s3AvWSHtQrApbfs5LP18eQgAVC2vLloYbwk/NBJo8wROgtkbgnEc2e9aWy+VYuOpB5Bia2fNoraGN+bxDw==

Merkle root

d1a08bffaccb4bd5530121134500726bddd8b9ce14544f30c175069340e2f6d1

Merkle path

["1ef0ecfb7c8e1db310136dba92c6cd8a4fa860e57f7a2cb2ffc30d493a031a08","9b3d608651f35686971579db3c979bb7bb2ae9919c8f97c83f649027bda49bc5","0daad19195300372ee2c211b2ae8fb7696be80189e04d049c3ddd7b8a2416446","0ec99f2663f1253b64c6632f22bb407c5e192e1cf69c4f9a8ce84250ee8dd219","642db45f0f0b10f117f97d03fabef3be0909a3f12cc7aad4b682b916d4057963","4fb7e1110f40fc73b9c373dcefbcdaff37a39beec61f78df238b7642ae5347b7","4e8e096697dea73e1efee8d8ac58a49efefab834f427ddb3f9e2c07f65ebeb71","47fcc4464b95fe0e4e386d22489c0141e7d5eef192c819b8838e476f9e2705ad","2ae35c5510fb517b09b149e56871eca3a92bbeec64741636ddbde76bcc3d14fb","7a819118599faf8788e2ae75d7dab5d4e02ac52070fb7980d49d20cc31740576","ffff81b5220522c084219711a92b12602361bd2ce750af81a1b7a3ac9eab5bd8","2f56df9e3c9163d70b2ede66c0f78027fac02282e1f31303c8c6d7447d53742f","25b83424b4327f2e26a2b3a1a83c1014ab2556207095e3d1112c414a2906928c","784b674df69e59ae8daa59037ba258b386fc987e1baae63fb09b14c7d0c016b8","09bcfd9352291a4c3cc61839df0884138937d69497778283c8e6e0793ca45e03"]

Anchored

2026-09-01

Public log entry

search.sigstore.dev, log index 2670724217 · entry 108e9186e8c5677a8322…

Expected log hash

db226267e29a9b0d4e7d26b93b25b0493252e02586281022df7cbce6abd08871 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":"v1788230131663","kind":"published-quote","locale":"de","page":"product:acrobat/sign-pdf/de","quote":"die kostenlose Version passt auch vollkommen für den Alltag","rating":5,"review_date":"2026-06-09","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 (d1a08bffaccb…), 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.