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.

“Ich habe es für meine Studien verwendet, für meine Universitätsprüfungen!”

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 2515345787

Proof data

Record hash (SHA-256)

4eac064078d6857a2cee2a60fc568d6726cccf598c322175e30b0c02f79377ad

Signature (Ed25519, base64)

hg8hyyiXvoe0jbV0kf0TvVQNDPElzkzgZ8AjT26EuuxxyzEH1+8y6TVxGX4XnimhkjGaRyEHyz3s43RZMclyCw==

Merkle root

e61c2598d4d03770603e24740bcc427581e87bcbeea2e56dc34fd81a9f496465

Merkle path

["4eac9a2b6783a9314f7821fd192e8fd83d3f7d29c81eb99f51730fc162f87bb1","1f1751e340e4b1d2bfcbd2498ce8681236d29615ddd18a24b30d40c7a12a9273","c5bbf58141ec48899cf1f29e7482c594692b2ce594e151096edc60038dd90688","d47a2200aba5328f6b3d11d97dd7ce3c08a482029fe5f74a07a5071b76fb04d6","da23cc8ab503338198ee40680a01765c65768667a0505b03df1d02b7c2ac5b55","53631bb82b87a43af3620e7092a3c351d0286ef8ec7f944c7d22070fd9d75c7b","cca6369ab56fd61ee4786af07756b64ea69399da91d65c4b63091f4298f115e5","768d1190591ef664e6be8f939d7dbe5ad357dbe94386143cb35a5c8d645ce174","b557f0d0c39dfc61ea3b07afa80e8f9e2789fe3c49d7cb4c91a8fbcc6c4b970a","4f6e42ca57ff075360a74c77eca8af1a477c1bfc1549d214344855d7836ddab4","ed2cd4fdd54fb36f29e921426dc64ae7c03b10056938270248ae49d756b5947c","99f29cfb72dffd98709ccffab4cb07cb522519f6c7d92b3049393aa98f14a9c9","6f11499eaa6ce65c1f0a92a7bc0fdf2e1cab1385f61e7dfd4606eee0f3dcd0d9","c34fa5ec75d6e3462dddbe081b828d412a3a575b53cbb348f7047f6afbe95056","11a62e67a9d98d919358ca5b8855f911ccdc865f14b203213de31adc67657443"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2515345787 · entry 108e9186e8c5677a749c…

Expected log hash

d9a90b5e7311041bf4315991ca7f2fbceee461daa2ae70a8b8b95323461a31cd 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":"v1787140356347","kind":"published-quote","locale":"de","page":"product:smallpdf/translate-pdf/de","quote":"Ich habe es für meine Studien verwendet, für meine Universitätsprüfungen!","rating":5,"review_date":"2026-04-29","source":"Capterra","source_url":"https://www.capterra.com/p/172606/Smallpdf/reviews/","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 (e61c2598d4d0…), 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.