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.

“hat die Produktivität zerstört”

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 2684091718

Proof data

Record hash (SHA-256)

08a84b98500dffca5fadc4944a50ab92a9fefe9c3e286b951a10fe6222f5ed18

Signature (Ed25519, base64)

4Veh67V2WfhZhTC4ePqyWcAXeA/jonQUAtccpS6yllc6+AXDxg83vWrt4MTZySy8/LRGfsPF3jgYemBKtMC5Cg==

Merkle root

9b1b0ea5ff073795652912177ab0790127c9d286c797e205e428b8d86989b898

Merkle path

["08a5fdac7ab35ef3b80017f16d9ea7054026b857b5b0d7f2daa7251bed030bce","91854b11c0ef74c966372d7c7c52bab1252a214d073e59086b10a697cb09c3ed","b8320924e0c8c10c70f13e68bea417dbd1a1e8e03bb8014165d9f3972fafecbd","8335861b9941730971b46ecf51edf30894ecd83d56238b84ffcf747a430e83a2","ff1bd83e02a9b153359f8f9beeacbff4abafacc6ef349d97c4a5d24c06cd2ed3","22cd38b815eea885d1d842daf5cc10cf7e6e83f58d754cddc5c8290a1c8b06bc","c10c804a82501a48a1bfb8c04dd59c4c6717d64490e0530a4fee97aaf40ae26e","fbe175edb2c0f555aaa2b1ba38d9da4a74ce500c2ced046b2065dd5b486019cc","e467c724086dd87ce0ce9f70ec35ef461ab8dd4500077c0d307a5ddab0aff324","4cb6c532187d0281638261824ff9446219647bd27532206c92b4410e5f255e90","334fdbee13094291838e0eacc15b49d44e39d04109f3c471fdae194cb3d6c087","9fdf2722c1e2da99c8523865ab9d73870a5693178709d80815ae462a63bb7c37","8a5809f94963a5df81714440927362d38263f78c79f37bf57de7b411279bcd69","1f2e00fbb60a33ba3643132ac67d23ed080f5d4ace7fdf97cd794367db9dab8e","cb32073192135525777f5779b873b337bde4d009abe6b4aee36e0d683387aeb9"]

Anchored

2026-09-02

Public log entry

search.sigstore.dev, log index 2684091718 · entry 108e9186e8c5677ac9b2…

Expected log hash

de33a5856ee5b3a69957109416f9fe5937b2a435c3e2583dddb1e30f75d54093 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":"v1788333782203","kind":"published-quote","locale":"de","page":"theme:smallpdf/quality/de","quote":"hat die Produktivität zerstört","rating":1,"review_date":"2026-07-31","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.smallpdf.app.android","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 (9b1b0ea5ff07…), 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.