Initializing the Hot Credential Scripts

The next step is to initialize the hot credential scripts, which will be very similar to initializing the cold NFT scripts.

Step 1: Obtaining the X.509 certificate files

Follow the steps listed in Initializing the Cold Credential Scripts. child-7 through child-9 will belong to the voting role.

Step 2(a): Creating the assets

We can now use orchestrator-cli to initialize the script:

$ orchestrator-cli init-hot \
    --seed-input "$(get-orchestrator-ada-only | jq -r '.key')" \
    --testnet \
    --cold-nft-policy-id "$(cat init-cold/minting.plutus.hash)" \
    --cold-nft-token-name "$(cat init-cold/nft-token-name)" \
    --voting-cert example-certificates/child-7.cert \
    --voting-cert example-certificates/child-8.cert \
    --voting-cert example-certificates/child-9.cert \
    -o init-hot

Let’s see what assets were created.

$ ls init-hot -1
credential.plutus
credential.plutus.hash
minting.plutus
minting.plutus.hash
mint.redeemer.json
nft.addr
nft.datum.json
nft.plutus
nft.plutus.hash
nft-token-name

The files are very similar to what was covered in Initializing the Cold Credential Scripts, so we will skip looking at most of them as the contents are not that interesting.

datum.json contains the initial datum for the script.

$ cat init-hot/nft.datum.json
{
    "list": [
        {
            "constructor": 0,
            "fields": [
                {
                    "bytes": "c6731b9c6de6bf11d91f08099953cb393505806ff522e5cc3a7574ab"
                },
                {
                    "bytes": "e50384c655f9a33cabf64e41df7282e765a242aef182130f1db01bce8859e0aa"
                }
            ]
        },
        {
            "constructor": 0,
            "fields": [
                {
                    "bytes": "c6d6ffd8e93b1b8352c297d528c958b982098dc8a08025bbb8d864cf"
                },
                {
                    "bytes": "e3340359f5d25c051e4dd160e4cb4d75074c537905f07eb9a2e24db881246ee0"
                }
            ]
        },
        {
            "constructor": 0,
            "fields": [
                {
                    "bytes": "2faaa04cee79d9abfa3149c814617e860567a8609bbfbd044566a5cd"
                },
                {
                    "bytes": "ae8eef56d67350b247ab77be48dad121ae18d473386f59b3fda9fccbd665422a"
                }
            ]
        }
    ]
}

Step 2(b): Creating the assets (custom NFT lock script)

See Initializing the Cold Credential Scripts - the process is nearly identical with the init-hot command.

Step 3: Assemble and submit the transaction

Using the assets created in step 2, create a transaction that sends the datum to the script address:

$ cardano-cli conway transaction build \
  --change-address $(cat orchestrator.addr) \
  --tx-in "$(get-orchestrator-ada-only | jq -r '.key')" \
  --tx-in-collateral "$(get-orchestrator-ada-only | jq -r '.key')" \
  --tx-out "$(cat init-hot/nft.addr) + 5000000 + 1 $(cat init-hot/minting.plutus.hash).$(cat init-hot/nft-token-name)" \
  --tx-out-inline-datum-file init-hot/nft.datum.json \
  --mint "1 $(cat init-hot/minting.plutus.hash).$(cat init-hot/nft-token-name)" \
  --mint-script-file init-hot/minting.plutus \
  --mint-redeemer-file init-hot/mint.redeemer.json \
  --out-file init-hot/body.json
Estimated transaction fee: Coin 375278
$ cardano-cli conway transaction sign \
  --signing-key-file orchestrator.skey \
  --tx-body-file init-hot/body.json \
  --out-file init-hot/tx.json
$ cardano-cli conway transaction submit --tx-file init-hot/tx.json
Transaction successfully submitted.

We can query the script address to verify the UTxO is there:

$ cardano-cli conway query utxo --address $(cat init-hot/nft.addr) --output-json
{
    "fca0a026d079b72f4870b794d2dbfb68f141ccd5049a15481086b6ee72700d36#0": {
        "address": "addr_test1wzn8zkvkvaex4nnvften2aejpgt3calqwmgmrzwj95vukcs0map8t",
        "datum": null,
        "inlineDatum": {
            "list": [
                {
                    "constructor": 0,
                    "fields": [
                        {
                            "bytes": "c6731b9c6de6bf11d91f08099953cb393505806ff522e5cc3a7574ab"
                        },
                        {
                            "bytes": "e50384c655f9a33cabf64e41df7282e765a242aef182130f1db01bce8859e0aa"
                        }
                    ]
                },
                {
                    "constructor": 0,
                    "fields": [
                        {
                            "bytes": "c6d6ffd8e93b1b8352c297d528c958b982098dc8a08025bbb8d864cf"
                        },
                        {
                            "bytes": "e3340359f5d25c051e4dd160e4cb4d75074c537905f07eb9a2e24db881246ee0"
                        }
                    ]
                },
                {
                    "constructor": 0,
                    "fields": [
                        {
                            "bytes": "2faaa04cee79d9abfa3149c814617e860567a8609bbfbd044566a5cd"
                        },
                        {
                            "bytes": "ae8eef56d67350b247ab77be48dad121ae18d473386f59b3fda9fccbd665422a"
                        }
                    ]
                }
            ]
        },
        "inlineDatumhash": "bcaef52050aed8a9720c1854860aee8625f3655fdeb8697a5650e257d7c56fc9",
        "referenceScript": null,
        "value": {
            "bf3bbf5a8539663eddd53364a9fd90e468c0182fcf6f0642ac16d65f": {
                "93fdf1b28aefd28ed13b268653c03dd86872063d58434a2c83d68e6c2301": 1
            },
            "lovelace": 5000000
        }
    }
}