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, free, and easily accessible way to edit PDFs”

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 2541942774

Proof data

Record hash (SHA-256)

2dceaa0c45019574d8befa58f2c126e60261f7c1cb09ec547ab0220e42de9c41

Signature (Ed25519, base64)

qfRHPa2qhpojIZsvDeg26ZmRSwQGhqZZwK2ajLZBBrThTo0BEsARZ9LZZnz01F2lucfFcjhOgplm6/vhEAXOCQ==

Merkle root

0fdf8a945cf322eba60395065bdb38bb3eeb32c52e065b6c93c48bb56aa3bb91

Merkle path

["2dd25e196f904826653772c6aaf8395197630b05cace75c628bcb3f56c5b4320","360972c300faad264193a515983710a40a339333ef3a48abd47f0cec1fb5bbea","b71eca2cd6e5953a47988d15ea318bafa2e6d7c0fd281091b850adcf3f6e3917","b035330048a2123c0d041dc7c171e0ec78bf0e540a25a999a5a09afa58e92391","ac91aca91a766dcde61a99c3407119f344c3273ccaa2a5b1d4ada41ccb7ea503","ea70dfffc47a45a79e42fb79d6a50b4eea8f2f58027b784839833551f8ce3224","58bbee98e4e1002a531413661cadd64fe42069c8ef6b1061ac7ebd550c606255","29423c4476bbfb23560410332ce8dca45989d3f45c0316fddb0ee4bc8d6003c8","412151f7a7f3a1f5008678bd322d029cd9811d83cbfdd812bb363fb9b2f37d08","3dfda6eefb4ac831955867cfb2ed1e51cd05547c7f9a8ed2e97ad47b137dcf09","a8752d1d2ad3dbebde3a87a74dcdce857dcba4a9cf51b30acf458fdcf13dbf40","f53de120e1726fe9db2d4486352b37fd1aff512fbb85358f81e6249de2ae3d7b","193dd7819b5cc0893cd3620ab02042348a20821938045af5a341e160ec2e8bda","d97c31a576cd351fb66ddffaddfc87228fbf93ecf06301d5b8aec9b37e0fda68","31e60baa9fb8f672f686fd126d7dc82498bbfeaa38bc676e67691bf1c2c7c210"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2541942774 · entry 108e9186e8c5677ae0bd…

Expected log hash

4825ba618d3c3368179be13912e101812df871de37f30b1ec256ca6d987713ec 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":"v1787277864570","kind":"published-quote","locale":"fr","page":"brand:smallpdf","quote":"Simple, free, and easily accessible way to edit PDFs","rating":5,"review_date":"2024-12-17","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 (0fdf8a945cf3…), 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.