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.

“Simple user interface allowing for easy PDF management.”

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 2657398434

Proof data

Record hash (SHA-256)

055db1a2d71258bdf5252311a829bc79a491fc2c8bc49b54c642fced679a7cb7

Signature (Ed25519, base64)

6Q39zyt7AsXI+S86gr9DfX1WAm2EYLh8OyKKpprynAtMlNmv8s1dbwEVe+GuB+mOCQLQcUyAO5GcckFYIyjDCw==

Merkle root

acdf1cdd0bdd2a199677e85dbc5991dc48c1e518ed6d2c5233af5991b4186e6d

Merkle path

["055fac76e7fc6c7123b2f6c9bfff2ae7d95cf7249add5a37efd2a833b8f9d96c","2395704186aa5dca0b004b0aa8c20e415fdf61b02472f4b30e9b84000c313469","46af226456d5830286aef9ab39ea85326a7eba6e4c5cf420441f3ccb9ed6e181","2fe30c3672eff3485ef026f46be05bcd21e51c36b56cce94d1a4365cc2a08d02","f94d1a33b1480fe730ddbb70e334c7c8c177abea33e5df87b9ff53e231d682f3","6fbe1d781e43ae9906016579bbcc7fbface461c6903f1b9613aecb329f8fc5de","6ba7767b3ad1a9bb1511e63a487b65b556c13948033c5d5696e8431bba7bc787","9ea3e9f1b199150d31334c767497f19b4b27dba7aac51bb59b57d409d345e6d3","ce3158c0eb35e0273a287e199d87cd36a263ab7a088c678169934c621548657b","a4915837c8e76ebdd3ed35fa2bca81cd44efe62020b322d64028513e47dc75d7","d56be8914f0f8cbe5274a96fd7fa8816cf0fce41fc6826030397e8ba6c2c1c27","e6d320b1a1c165cb3f510accf419016e8f913615cccc12cf3280df561ab3fc0b","5be1ed0db4a168c968a9338cf99a259771d41cd5263b972d09b2723267155cfc","f88b7eb537a26a67b92d1223a237ed8f66b05121bed134a4e98a9efb344eda0f","abbe7f57eef4397ffabc67ae858dc9e10b74d761241655f8d4d6e91a3ed19782"]

Anchored

2026-08-31

Public log entry

search.sigstore.dev, log index 2657398434 · entry 108e9186e8c5677a2042…

Expected log hash

654fbf62fc5d4d889ecdda697456043b4d29831eb78c01e70ea2a4db22de7769 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":"v1788145268703","kind":"published-quote","locale":"en","page":"brand:smallpdf","quote":"Simple user interface allowing for easy PDF management.","rating":4,"review_date":"2025-01-13","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 (acdf1cdd0bdd…), 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.