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.

“I used it for studying, for my university exams!”

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 2514496096

Proof data

Record hash (SHA-256)

60e3561c9d95d2ef782777b398042a587475ec42008f8d2b5bb78b734149b3f4

Signature (Ed25519, base64)

/QD375507zk/BlAvBnB+qNDB1wz/d1ihA1ADBLkRKeqq97Mp+K+ck4XZWNk88IGnUaIWFr8Sf/Tq76y3Om3xBQ==

Merkle root

790984da83ec061260aa072fed7636f9dedf91964fe0be93d7a7a622b2b5a92c

Merkle path

["60e260145da7d6da31f969dfb8ea652413cfccdc03700ca37e6328ce044e71aa","beee33ad8110772e6a98e91a796f6a6d8ffdbd2516b23ca085891cdc21e0d613","6b408afd319c4c27456a297ee822371e03c10a0e1153c7ced6c6ad5455e56c7b","a71ef6aa04ff51841a7a4f252176a1826374e38442646ad6835c7345d4cdf6a4","b2e487097eba05c30a6dedb58b87119406d7f2a459e8b275c213a51e882ec65d","d9541bc37f5b42bf8a65f732085904c6a8c8af4962a2e2b33fea8e24de89f894","b6b10f89358997ca63d3ba80175f60d4e0094c591ffbf615b73d87f229e1c61b","4e4c6715dddf6ae9949e0b8f8a30aa96c55eeb10675aafde0ef69092b9d10b6c","f75d6a88ed73cde95a8395fa2d6277c96772b2e1abc130498431d67f6a82a9b6","427c399fdb03f3c9f128e750fff12e8f8f9a16743ddf74f7ec429722e084587c","744bcf41fc6263a4d0bea8d7383c2a855b77d43a105e6ed0d8a4cdd4706e106c","90f0a0e3211fc23b1e8db52b76383f6519eac469757414a3b9d5875619fb9c0d","6119aef4031d03205576aa94cf7a51dbc6eedfdd420d909f325579401c8abd0c","19cc354f6573191d4e7914f94cb811eea176897530d869ad83bfe3cb7fd5f206","c7feebd3045cc2c03d87ca1241b2d06259ffad35db645c59ca3c5ee2004a8947"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2514496096 · entry 108e9186e8c5677aad27…

Expected log hash

5d2238ef768473286d75355f523ab94503f4ccd3d25e17e9efb265aa0f540183 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":"v1787129810322","kind":"published-quote","locale":"en","page":"product:smallpdf/translate-pdf/en","quote":"I used it for studying, for my university exams!","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 (790984da83ec…), 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.