CAIP
To read about CAIP and the motivations for proposing CAIP-2 and CAIP-10 standards for Hive, please read this post first.
The CAIP-2 regarding Hive namespace definition has been submitted for review in this pull request.
CAIP-10
The scope of this post is to propose an account ID standard matching the Hive usernames.
CAIP 10 is defined as:
CAIP-10 defines a way to identify an account in any blockchain specified by CAIP-2 blockchain id.
The original chain agnostic account ID goes as follow :
account_id: chain_id + ":" + account_address
chain_id: [:-a-zA-Z0-9]{5,41}
account_address: [a-zA-Z0-9]{1,64}
The problem with that definition is that it only includes alphanumeric characters, while some Hive usernames also contain . and/or -.
CAIP-10 for Hive
I've started a draft of a Hive-compatible CAIP-10 here, based on the required template.
Proposed account ID definition is as follow, based on a Hive username regex by @mintrawa (vote for witness). Note that only the account_address changes.
account_id: chain_id + ":" + account_address
chain_id: [:-a-zA-Z0-9]{5,41}
account_address: ^(?=.{3,16}$)[a-z]([0-9a-z]|[0-9a-z\-](?=[0-9a-z])){2,}([\.](?=[a-z][0-9a-z\-][0-9a-z\-])[a-z]([0-9a-z]|[0-9a-z\-](?=[0-9a-z])){1,}){0,}$
The simplicity of Hive username regex is a beauty to behold =p
Using CAIP-94 (CAIP-2 for Hive namespace) and this CAIP, chain agnostic dApps could define Hive accounts as follow :
# @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
The second and third examples above aren't currently possible because of the limitations of current CAIP-10 (as explained above). This CAIP aims to solve this issue.
Future work
- Submit for review and follow up
- Hive AuthProvider on Ceramic