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 2913636507

Proof data

Record hash (SHA-256)

07ecb660a429d2b209267e0e92fdbf5159b66482763ba9b191eed3865b5a6921

Signature (Ed25519, base64)

DKNhOT5ZLCEzrC8Zx6T6963VpUqQVopBnmDXgKma15eDHGwiQ7ZWx3ecSCJ8XMHgb0pMik+q+SqFNza2AnM4DQ==

Merkle root

f26292e960b34f73f9768b4afc64585e265549d794b35b8167826c2bcda92ef5

Merkle path

["07eb892803befe6832336bd963ec55b186dca299a14f66b64957bc29fd0c8b7d","791940a4d47750160d5d60c8d219d54c764bd91bce32ddec1f5925c25b4b7ca2","81c7f3fbc18039f079eb4e10d715aa1df0b6caba799646432105c313746583db","47e6e0d99dc3a3f49df8c25e9f7e8b09005ba00a2900628eeff33bb839d58b97","8ca92693ce94e815b38032ad34cda5f73672c5f1353ba942f913623be0570c09","f5ac77ede47982ca7a24f8a54ecc588daafbc94c41c497650186d7db3e2ccfec","fa92bf38b27d02f351550f82f6e1243489db7611b168fbc778e5cf024e665bb3","8b0dd3bd1da30d5c252032687c672bdb18c4b2b71b6dca1784fced7031d8d767","0263f9b33431c182e232533b59315d6799abe8585a2af985b7f1c16d02956564","bb905c221822b3aa55f281a067a05e143db06e9d99092fd43a7cc42182d341df","9ae6119d5ee9be570d06c86aeca4c3e551adb30b5cd935ee702e9cef21b97b78","61b50ad04922f327345abbcbc9d231acfaa1042078046650c0d690ade7d11fb4","14d95cb3ffe81dc7ba7bda02f51c7ab9c1977951e0a9ce587124764e85380fa3","0cf751b4d000491c43eea40a33568458d763987b542601ca0644e491c0b04ce6","e95e880a53b013b49906f2e6b9dcc652726333d77986f48029bb634dc427e2de"]

Anchored

2026-09-23

Public log entry

search.sigstore.dev, log index 2913636507 · entry 108e9186e8c5677aea51…

Expected log hash

417fac9b806377ff48d30ded01faf8424eb98406df713fe2564ee9077747e6a6 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":"v1790070376053","kind":"published-quote","locale":"en","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 (f26292e960b3…), 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.