Onchain Messaging

Enables sending verified messages from the DAO

The Onchain Messaging extension (aibtc-onchain-messaging) allows for sending verified messages that are stored as blockchain events. This provides a way for the DAO to communicate officially and for users to send messages that can be verified as coming from specific addresses.

Contract Overview

• Title: aibtc-onchain-messaging

• Version: 1.0.0

• Implements:

  • extension trait

  • messaging trait

Print Events

Event	Description	Data
Message content	The actual message content	Raw message string
send	Metadata about the message	Caller, block height, isFromDao flag, sender

Public Functions

Function	Description	Parameters
callback	Standard extension callback	sender: principal, memo: buff 34
send	Send a message on-chain	msg: string-ascii 1048576, isFromDao: bool

Error Codes

Code	Constant	Description
u4000	INPUT_ERROR	Invalid input (empty message)
u4001	ERR_UNAUTHORIZED	Caller is not the DAO or an extension

Usage Examples

Sending a Personal Message

(contract-call? .aibtc-onchain-messaging send "Hello, Stacks blockchain!" false)

Sending an Official DAO Message (requires DAO approval)

(contract-call? .aibtc-onchain-messaging send "Official announcement from the DAO" true)

Message Size Limits

The extension supports messages up to 1MB in size (1,048,576 ASCII characters), making it suitable for a wide range of communication needs, from simple announcements to more detailed documentation or proposals.