Publishing an Offer from the (Web Commerce 1.0 Spec)

 I went to https://web-payments.org/specs/source/web-commerce/
and looked at Example 4 in section 4.3. I changed @context namespace from http://w3id.org/payments/v1 to  https://w3id.org/payswarm/v1 as the first namespace did not resolve in the browser. By observing the payswarm-v1.jsonld file at https://web-payments.org/contexts/payswarm-v1.jsonld (deduced from https://github.com/perma-id/w3id.org/tree/master/webpayments) and https://web-payments.org/vocabs/commerce I was able to make the following conclusions:

{
  "@context": "https://w3id.org/payswarm/v1",
  "id": "http://www.example.org/car_partOf.owl#",
  "type": "Offer",
  "payee": [
    "id": "http://example.org/outsiders/foaf.rdf#me",
    "type": "Payee",
    "currency": "USD",
    "destination": "http://bshambaugh.org/foaf.rdf#me",
    "com:rate": "120.00",
    "com:rateType": "FlatAmount",
    "comment": "Payment for Wheel of Car through Ripple Network."
  }],
  "payeeRule": [{
    "type": "PayeeRule",
    "com:destinationOwnerType": "payment processor",
    "com:maximumRate": "10",
    "com:rateType": "com:InclusivePercentage"
  }],
  "asset": "http://www.example.org/car_partOf.owl#",
  "assetHash": "urn:sha256:02817609f8ffb72502e002defe7a426f8d433802f866ac88fc93c318b9130840",
  "license": "http://www.tapr.org/TAPR_Open_Hardware_License_v1.0.txt",
  "licenseHash": "0d8866836917f8ef58af44accb6efab9a10610ad",
  "validFrom": "2014-02-02T03:51:08Z",
  "signature": {
    "type": "GraphSignature2012",
    "created": "2014-02-02T03:51:08Z",
    "creator": "https://dev.payswarm.com/i/brentshambaugh/keys/1",
    "signatureValue": "fYb/QH0Ot3NALFtCsRxZR0rCAu76FUKjFwfWzD+PXYj/QtjC8Bcf+0eSlpo/89w/eZbuCqQ5O5SgTHyrhwGUgLFRlwsZYWwG7dgqXBlSh/zIAOf3PQ2IXyvGEQypIwggaJoBUmvRRoE1pJcBdVGXnINu3hTevUJisomPEDV37fi77EV+yihT+FRoQ9si/gXG7PQxD/8PnJ6a+N6Ix9jknRgF1q4xRf9mlBERW8fdP2GbPa2sHcrev4QD1fEUPjBonN+UxM0FEMM9rc7+PkiFribNStrV6F3s66MBF6m7zjkvRqXDuAdL3P2gQpOat9/P5iVmK6loHIHgZPePFoFf/A=="
 
The assetHash, licenseHash, signatureValue, and created are taken from an earlier blog post. I could not get my payswarm client to work as the npm package ursa (or something that I do not know about) was causing trouble.