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.

“Excelente aplicación para trabajar con archivos PDF.”

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 2683566971

Proof data

Record hash (SHA-256)

085642eec8ac4eeed82f95059284b760ce818bf614772ad5ecf8bdc483d9f4cf

Signature (Ed25519, base64)

f4dNzpzRlNh5IW0237J8LEoVRu0qIiOd+cA8aZSgyTa09hsIdLGca3xLucKjIsMyfvd4CgZw0201idmX10MsDA==

Merkle root

b50c49a22fa48572e59110f158a3e38dca411e70b7df05ca4ce3240cde9a105e

Merkle path

["085805bac4443fbd0c536202295ae56de9d4998bfe88ce3a70c3214ecf106e42","ba8fb4ef5b962c1eece96c584e6d1a60db3a161bcf5b1c9e15602763d746c3a5","a1bb21e7852fcfaad49d32987f0073d76d202f8f152acc037dc3bb1144b2ce6a","3c6a0b7aa6dca462bdbaf1d27086203b57da1796ab3598c6a1215f2bb4d051db","c4e849b56aea1a454adeae1dcb98b920d26925a7d2578a27a2cbca20a0c36a32","3f0c241e66457d50a06ee85c087e1ebb0b3fbb73edea8767c623a67de2f76fc0","b7724e3e3ea790fb3db046f2d793f4f6749a4c9e70494cd0ab0716e8dddbef7e","349dfbd53bf08d35fb474674eaccfc6963efb0a2a0f864aeeac293aac064333a","ffbc8ab0564164cd9d3ddafe370d837386a4b54af44b6e78de519e8352f128fb","c602d992bc8277f08d8fdbb74ca872637ae163002cbc176194d42287cc5d6ff5","256d63dbc1257b5eabeb884fc6254cca49ef20c24fbc18b3bf49afcdf07489df","f226f41ab142ab66a4d46788fad93ff5ffb8de098523db434b21c241fd9c672d","2ed82a4b5c03fd2e536cd8ec085ddfeafb1fbf3b5ecf77543d03ac03322a0ba3","0f6faeb45818dfeaf393e3820d4f557973a442246fc59091fc93ac88627b190f","2e701d6eede48cfff654c6f160a417a29bcca8f9f41ec1623b3f3f9f6f4ec566"]

Anchored

2026-09-02

Public log entry

search.sigstore.dev, log index 2683566971 · entry 108e9186e8c5677afaf0…

Expected log hash

3fde45a3d66811fca8014f4f116c6ed165f22a40a67f9ab4532375442c4a7526 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":"v1788326310539","kind":"published-quote","locale":"en","page":"comparison:smallpdf/en/cat-convert-pdf","quote":"Excelente aplicación para trabajar con archivos PDF.","rating":5,"review_date":"2026-08-27","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.ilovepdf.www","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 (b50c49a22fa4…), 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.