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.

“It's helped me out SO much!”

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 2525010456

Proof data

Record hash (SHA-256)

f792478f576f3374ad0be0730e34a1f97889d0aec6a5ae50a1472dfe194dc5ce

Signature (Ed25519, base64)

gUmqIaP3FEFWs3ldZJggMDszjiDAyKDRnZ8YRpV7mhLPSD3YnKPvzxLlGeHG3+cgvAsYyxfSv0Jo3NB7yOyBAg==

Merkle root

c69b412346f0db8d88aed17dbaf2e4876a3743c1c4d16fb306ba56b5c0573123

Merkle path

["f791e490c4f6ce7e00e58dc45b9864500b5bf7d68130a1b3ec69ddf8f2394b5b","824dcd561c9267c1e7afbd487445d39d4813539cc35b32e12a13dcbd6e6b17f0","8d85bea5123ad2a1939202b1a7b3023220b23a3b9472b2ac16799275d5f895ad","f6f45406341187b1378d355ef2147b2881ad7657ea6d74a025ecc74c5927cc4d","ee1951bffc0234f97ee52709c577e0f7912f5148e093661b2a0fd59646cb952d","557fd351d5a34e6423c800715cccbbec56c66ca2759bb419b712404db7430a22","e997c4e54b7967eeb37bef2167d91f3033cbee35d5a193b0045f1f3a5ec8aee9","5961675362ea68c03ef2a5c975ba6a15f5bba8c72cc965f789d1b19a258bff7c","d8d3b0e4c9478561c5b905f6fdeb6676ea74e584da9f1c1843c29c84ff9f8161","b4eeb7ac9316ef0c91363e08429947c43d9343ef8e2aa297aa2b594a7905e5fa","7611f7d9d45e1aa2559a9669fb320fa8de860ddd2f2bbf9f1750f5870b97c7e9","be573a7f1b72f2ba796f13eca2ce49adcab5b24638217940d33f5ea473838f89","f0a12fd268a34d0f9b23bfa8bffff7480f1f51a4e4044173daacd716efd0fa79"]

Anchored

2026-08-20

Public log entry

search.sigstore.dev, log index 2525010456 · entry 108e9186e8c5677a4287…

Expected log hash

659be4fcc7663b2dc65a53351e16497fea44ed9ec8aef1f3c48c8e452b350dc6 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":"v1787194832011","kind":"published-quote","locale":"de","page":"brand:luminpdf","quote":"It's helped me out SO much!","rating":5,"review_date":"2026-05-28","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.luminpdfapp","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 (c69b412346f0…), 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.