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.

“The payment methods,”

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 2776103867

Proof data

Record hash (SHA-256)

089ab381b09d45231abd0a1f39c6bced6dfde850aae727bb6f7bc76606f88122

Signature (Ed25519, base64)

Tfq9ILm8SSY7cwT0Nwj61fT3Yt9dQevwvBJZ1Bzys1Mj2Dwmne8svl6LfdmyA1zRxU4gH6i3ObTxVTHllG9YCw==

Merkle root

4dc0bd79ba3e9442f7f1feb21f347e2f6fdbc72e99098aa5164776a6202654a8

Merkle path

["089a3db9aef7a3b2dd0583985a929197303574481f4a27561eb5cc6f9ddc1bd9","998d577d1f87f3076ef08fd7b5b2c9fe95ab6ea599003096f7ceec1049076532","83e60a891f27a0e8dd47449d21c08d3a4f7e9cd0dae7a4b378525fcd27c1eb7e","ae92608b489864288e81b3cf711a8239ccf56964e0e8e93d52e888a10043530e","725d083b3906fb84cd6ce3211794a192e856af60ed66c2fef3b66a01d2fbbbbe","5a7162a8ed06bd6b4b5a4e8ee0657141cf1e33f2fe00d080250e18544c56699e","68128a9eaad39610ab9b6f68ade93d39c0397125b48d441e7bcd5e7a7827897c","e48d0eb57b17ffce46c36615194630e84891e92cce76117ae0f5d0e0feccfa01","09ccb8fe51c9bf65e606ad05b2b8a9bf6dabb5c629792ce9ba6e22faa4362ae7","2ebb6fcc399bfb6964fea30153be32e10c4237cfe833f87acc9a0f91b764c0d8","7575f0e9b925b29131359a70a1a4bf923653e24bbf6b0f1c9573fe99c5754b0c","601d3d5f4fba7ccb8e25e8db9adc4fc1a6094821bec2364894f7bf4c640df5de","b64868d5884e6ca103d8fa1886b59a755a471482d82618eec868304914b8e334","72f96e42060ae616ed33b8fd6ac687c1899623eaa8a351026bf33e2e7a041d34","e60c2274998b06992577796b6abe86bec144203fe960878f7951a3ae12c9e532"]

Anchored

2026-09-10

Public log entry

search.sigstore.dev, log index 2776103867 · entry 108e9186e8c5677acd4f…

Expected log hash

2498329b7eaf275d309293dfbac35d05dfb8a55c65956add8448561c05945f28 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":"v1788848066028","kind":"published-quote","locale":"de","page":"theme:smallpdf/billing/de","quote":"The payment methods,","rating":5,"review_date":"2026-06-27","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 (4dc0bd79ba3e…), 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.