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.

“Bearbeiten am Handy funktioniert nicht”

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 2621946731

Proof data

Record hash (SHA-256)

152e3c37238b877226111f6bd736fd162255c86ab0f0f5b5de94696154606dad

Signature (Ed25519, base64)

BMMtz6mZbZoVGHmeS6IyP8Zpd++n1olLqS4pCpAWeuVdD0cadLlnzNmgcieHtsWkT5yg3gGrnNAhzQbL3fioBg==

Merkle root

3dfdf7381c8d7ad52c2e382f4e16b6f321af764e7eaa340297113fa50b9a0792

Merkle path

["152f4989ce74947a3c983791d0029ac6a91320032a54f2e1ab6fb89b64e8c0c0","c1fa21fd569c40258852fabf68c47b4359de3d2dfab58022b7674a1ca4220dcd","48999efff3c3fb17b871797e5e92273fbfdf7b8c94fbb1deaa104ffbccc330ae","83d01e1b7f1cc260290bf796d321871b747ab5a21946c2e2c1ef732d998924e2","f9b8b1e422c1f389bd7caebf83a69d0a1ae0c1e2d17b8358b2f9d7aaaaae3e97","8b099ec295bbcbf01011fd1296ab26726f9d7007d910826cd76e0d4bfa5da154","8e5dc93fb7aa2a41711a6a649c8ae99a54e7b86cec2c08763fcdfc61e906e2c1","38417a4c52e64ae5d0dcf31f5dd7f8b631db68e6f0a47413a02ec1123124d369","12f10059689e6b6879778a0584a93e842fc0719ecff90b910c49abafff564993","b8e920fc24558d592cc029298fb804975062dce87872e9909b9d52662e3d2d4b","5cec1b530c643205970003b1115cf64f1334e500595cd5d5fe0185eaeafb8260","81f5340bb1c2a0054bdc2b1c036e86ac1d05247316c250aa07dd756a5b01354f","83e63a6d799b1ceb15f089aa785a41ce6f782296862900005501fb5bd92d886e","81acff1af3c2bfcaf656a4ff2b93eca8121fe44c1d5b5a4dbce370acad78d2b5","377cd45c8c0bf5fb2c54ade6d9c4a053bed5d007e1a30f5279132a3d565864ef"]

Anchored

2026-08-28

Public log entry

search.sigstore.dev, log index 2621946731 · entry 108e9186e8c5677a0a42…

Expected log hash

ea07e2ac95e2432412286c8e9f169e876b2f38f9762d26c0a0ce3cc128edcf3c 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":"v1787893493942","kind":"published-quote","locale":"de","page":"product:acrobat/pdf-editor/de","quote":"Bearbeiten am Handy funktioniert nicht","rating":1,"review_date":"2026-07-08","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 (3dfdf7381c8d…), 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.