Add off-chain URI fields, raw data to metadata record input/outputs.

[iramiller]

Summary

Records in the provenance metadata module are created around the assumption of an off-chain data store that holds the record information. In non-Figure use cases there are typically three different scenarios; directly on chain data, off-chain data referenced by URI+HASH, and off-chain object storage. Our record feature should be extended to support these other two common use cases.

Problem Definition

Not all users follow the object store approach used by Figure for NFT records. In order to better match other use cases such as the simplified ERC721 model the metadata record objects should be extended with support for the other two [more] common use cases of on-chain data and off-chain at URI location with an on-chain hash.

Proposal

Expand the record input and record output structures to include support for URI locations and (limited) inline data.

      "record": {
        "name": "digital_signature_packets",
        "session_id": "session1qyru935fkw9y7yasfkanzg946dz3e3nx4jgxjjluh793an73knqcx2l0hy5",
        "process": {
          "hash": "AC6hBXSVmLXgJKgPvxzgnQgFP7bghdVaB9yQHpdB640=",
          "name": "io.provenance.proto.common.DocumentProtos$DocumentWithDataList",
          "method": "digitalSignaturePackets"
        },
        "inputs": [
          {
            "name": "digital_signature_packets",
            "hash": "LZseyssJ/pplLtCbmmlEx3hy0kdsH9WJvOXaJzfmLac=",
            "type_name": "io.provenance.proto.common.DocumentProtos$DocumentWithDataList",
            "status": "RECORD_INPUT_STATUS_PROPOSED"
          }
        ],
        "outputs": [
          {
            "hash": "LZseyssJ/pplLtCbmmlEx3hy0kdsH9WJvOXaJzfmLac=",
            "status": "RESULT_STATUS_PASS"
          }
        ],
        "specification_id": "recspec1qhe5jmlq8n9mm09el5dnuytz625j2vnjxcq5qn4t62ld7tu9djvq50cgcrv"
      }

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[iramiller]

We should also review ZK proof output and see if it makes sense to add or adjust these fields to show this.