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.

“Professionell, sehr hilfreich, übersichtliche Hilfefunktionen.”

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 2656977863

Proof data

Record hash (SHA-256)

137420419193e1b32aed01260556a0d096791136c5aa393ff67b6812b2b1503c

Signature (Ed25519, base64)

NsLywP+6CfiCmT7cT8b9gnuksVaQdJCKs/8xiLWHn784uHrAj1tjgSmTPFgM8V6+A7ANtSJ4JZotaKrMAJKjBQ==

Merkle root

0cb6814e51c7eb056a01f84349e58060bb6087dd0cf96aef0f27729d4d4fb276

Merkle path

["137089b388113cd81278f0e115f5a564f30270d5cd87102c8340d8dba4578092","8257c780efa617ca88d585e77ce11f0ca21e428cdf0ecbefb92077a0d3e7a2d3","b689015c4f5c0f2878b638828f9764836fd1691921c08f5d1de4abc1d40c2e8d","f009a26d53734fe9dc4b518444e70c9fa3684f6a72a0165aaa9bd3962f9c376b","d16e1f24524ea5a732349021c5e3d7cb8a1310216a117c746417a75854418d20","56bdaf14f096b021ec022195057dc819e41bae3e2749b626a64189597f1a667c","d7c47f2a0d9d5179b0bdf92c57d56d1d368cfb62938da0f67e9dcb8a31b71d3f","6c542cff9257304031e739a07c5bcff8363c008e6afa7848904af45cca4a4fea","5d22eae2fef15da4b84e28df216021559df33e739e7476534a401812fa6353ec","e5ccd6f64986aaa6ff3205daa276d4163f9de0cc0020ed25cea2e0ad9b460c68","466a75483a9b08434ad5efa0daedf09d35415351009f0f7eaaedd9760cde6026","0e7b34ee57018ab949f6230ec302cfa9f723792d5fdbb493da70978b6389c9e3","be1dd0e45f7494393f0e1b32c70d3c985a66f040e38a68aca73948a6803cfeda","2518affc97ecf822332e259f6b71ff1d6b20920b0b5c6f8e1080f3c11eb6b936","af2962fc61736883c7077a83c82f90f0eaef6320643194fac99217c4f69a9d04"]

Anchored

2026-08-31

Public log entry

search.sigstore.dev, log index 2656977863 · entry 108e9186e8c5677ad8e2…

Expected log hash

50611b695debae6fb0a9929f4c3d2c8dd8c51d8e8342a15fa077624a80d81709 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":"v1788142253421","kind":"published-quote","locale":"de","page":"theme:acrobat/service/de","quote":"Professionell, sehr hilfreich, übersichtliche Hilfefunktionen.","rating":5,"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 (0cb6814e51c7…), 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.