Wormhole will cover following features in Version 0.1.1 to support the issuance of stable coins

Freeze and unfreeze the manageable property.

Specifically, users can issue managed tokens carring the freeze function, that is to say, the issuer can decide to freeze or unfreeze tokens of designated user address. The frozen address will be forbidden to transfer its assets until they are thawed by the issuer. Note that only the managed property issuer has permissions to freeze or thaw transaction, simultaneously, issuer cannot freeze himself.

The process of stable currency business shown as follows:

The process corresponding to the RPC interface as follows:

1.Create managed properties that enable freeze：whc_sendissuancemanaged
2.Additional properties: whc_sendgrant
3.Transfer: whc_send
4.Freeze property: whc_sendfreeze
5.Unfreeze property: whc_sendunfreeze

The release will provide following RPC interfaces:

whc_createpayload_freeze

Description: Create transaction payload of wormhole frozen property
Call: wormholed-cli whc_createpayload_freeze "toaddress" propertyid "amount"

Parameter:

• toaddress : Pending frozen address, CashAddr format
• propertyid : Property ID
• amount : Property volume,currently can be any value
• Return : Hexadecimal transaction payload

Example shown as follows:

wormholed-cli whc_createpayload_freeze qqpj0yu8w9ukg7x4h83xx7a4nj8f7mssh5dgn6flfu  320  "100" 
000000b90000014000000002540be400626368746573743a7171706a307975387739756b6737783468383378783761346e6a3866376d7373683564676e36666c667500

whc_createpayload_unfreeze

Description:Create transaction payload of wormhole unfrozing property
Call: wormholed-cli whc_createpayload_unfreeze "toaddress" propertyid "amount"

Parameter:

• toaddress : Pending unfreeze address, CashAddr format
• propertyid : Property ID
• amount : Property volume,currently can be any value
• Return : Hexadecimal transaction payload

Example shown as follows:

wormholed-cli whc_createpayload_unfreeze qqpj0yu8w9ukg7x4h83xx7a4nj8f7mssh5dgn6flfu 320 "100"
000000ba0000014000000002540be400626368746573743a7171706a307975387739756b6737783468383378783761346e6a3866376d7373683564676e36666c667500

whc_sendfreeze

Description:Create and send wormhole frozen property transaction
Call: wormholed-cli whc_sendfreeze "fromaddress" propertyid "amount"
"frozenaddress"
Caller: The property issuer

Parameter:

• fromaddress : To be frozen address, CashAddr format
• propertyid : Property ID
• amount : property volume,currently can be any value
• frozenaddress : Freeze property address, CashAddr address
• Return : Transaction hash

Examples shown as follows:

wormholed-cli whc_sendfreeze qpjua0mvqpnyxddavqys2j3d8wuewarmnvx3kqha2q 320 "100.0" qqpj0yu8w9ukg7x4h83xx7a4nj8f7mssh5dgn6flfu
45a9e5702c7d5c9836d77a5f571059a2b50fe32e39bf7bf0c0d7951392cb4e0b

whc_sendunfreeze

Description:Create and send wormhole unfreeze property transaction
Call: wormholed-cli whc_sendunfreeze "fromaddress" propertyid "amount"
"frozenaddress"
Caller: The Property issuer

Parameter:

• fromaddress : Property issuer address, CashAddr format
• propertyid : Property ID
• amount : Property volume,currently can be any value
• frozenaddress : Freeze property address, CashAddr address
• Return : Transaction hash

Examples shown as follows:

wormholed-cli whc_sendunfreeze qpjua0mvqpnyxddavqys2j3d8wuewarmnvx3kqha2q
320 "100.0" qqpj0yu8w9ukg7x4h83xx7a4nj8f7mssh5dgn6flfu
4d7e239fbc1a71ce7b27ae7b6bc4c557131973505f0d1701377d0302177390f9

whc_getfrozenbalance

Description:Query wormhole frozen property balance according address and property ID
Call: wormholed-cli whc_getfrozenbalance "frozenaddress" propertyid

Parameter:

• frozenaddress : Freeze property address, CashAddr format
• propertyid : Property ID
• Return : Freeze property balances info

Examples shown as follows:

wormholed-cli whc_getfrozenbalance qqpj0yu8w9ukg7x4h83xx7a4nj8f7mssh5dgn6flfu 320
{
    "frozen": true,
    "balance": "1900.00000000"
}

Return value field description:

• frozen : whether the designated property is frozen
• balance : Frozen property balance

whc_getfrozenbalanceforid

Description:Query wormhole frozen property balance according property ID
Call: wormholed-cli whc_getfrozenbalanceforid propertyid

Parameter:

• propertyid : Property ID
• Return : Freeze property balance info

Examples shown as follows:

wormholed-cli whc_getfrozenbalanceforid 320
[
    {
        "address": "bchtest:qqpj0yu8w9ukg7x4h83xx7a4nj8f7mssh5dgn6flfu",
        "balance": "1900.00000000"
    }
]

Return value field description:

• address : Frozen address
• balance : Frozen property balances

whc_getfrozenbalanceforaddress

Description:Query wormhole frozen property balance according to property address
Call: wormholed-cli whc_getfrozenbalanceforaddress "address"

Parameter:

• address : Pending address
• Return : Freeze property balance info

Examples shown as follows:

wormholed-cli whc_getfrozenbalanceforaddress qqpj0yu8w9ukg7x4h83xx7a4nj8f7mssh5dgn6flfu
[
    {
        "propertyid": 320,
        "balance": "1900.00000000"
    } 
]

Return value field description:

• propertyid : Property ID
• balance : Frozen property balances

Version changes RPC interface:

whc_sendissuancemanaged

Description:Issue managed tokens
Call:wormholed-cli whc_sendissuancemanaged "fromaddress" ecosystem precision previousid "category" "subcategory" "name" "url" "data"

Parameter:

• fromaddress : Issue a managed token address
• ecosystem : Token ecosystem, currently must be 1
• precision : Token precision
• previousid : Property freeze function switch, open: 1, close: 0
• category : Token category
• subcategory : Token Subcategory
• name : Token name
• url : Token URL
• data : Custom description data for token
• Return : The transaction hash

Examples shown as follows:

wormholed-cli whc_sendissuancemanaged qpjua0mvqpnyxddavqys2j3d8wuewarmnvx3kqha2q 1 8 1
"test freeze" "frozentoken" "www" "hello" ""
e32bff59d6088f2d6088ae90b31807cf4e50fde2f20bcdd3f1ca7b904b0fe2b6