CAIP-95: Account Address for the Hive namespace

Simple Summary

This document is about the details of the Hive account address for CAIP-10.

Abstract

In CAIP-10 a general account address scheme is defined. The definition of Hive username does not fit neatly into that specification so an alternate account address format is defined for the Hive blockchain.

Motivation

See CAIP-10.

Specification

The account_id and chain_id from CAIP-10 will remain unchanged. The account_address will be the Hive username as a string.

Syntax

The account_id is a case-sensitive string in the form

account_id:        chain_id + ":" + account_address
chain_id:          [:-a-zA-Z0-9]{5,41}
account_address:   ^(?=.{3,16}$)[a-z]([0-9a-z]|[0-9a-z\-](?=[0-9a-z])){2,}([\.](?=[a-z][0-9a-z\-][0-9a-z\-])[a-z]([0-9a-z]|[0-9a-z\-](?=[0-9a-z])){1,}){0,}$

Semantics

The chain_id is specified by the CAIP-2 which describes the blockchain id.

The account_address corresponds to the unique Hive username.

Rationale

The account address maps directly to the corresponding Hive username.

Test Cases

This is a list of manually composed examples

# @hiveio account on mainnet
hive:beeab0de000000000000000000000000:hiveio

## Accounts with special characters (`-`,`.`)

# @hive.fund account on mainnet
hive:beeab0de000000000000000000000000:hive.fund

# @hive-blockchain account on testnet
hive:18dcf0a285365fc58b71f18b3d3fec95:hive-blockchain

Backwards Compatibility

CAIP currently limits account_address to alphanumerics in the regular expression definition. If that definition were to include the dot (.) and dash(-) then this definition would be a subset of that definition, including length restrictions.

Links

• Hive blockchain
• CAIP-10 Account ID Specification
• CAIP-94 Blockchain Reference for the Hive namespace
• Hive account regex For testing Hive accounts regex

Copyright

Copyright and related rights waived via CC0.