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Your ERC-1155-based tokenized equity framework for the 3Sixty6 Media Rolling Raise is a modern, scalable, and compliant approach to continuous capital formation. It aligns well with your goals of low administrative overhead, dynamic FMV adjustments, and global compliance.
Below is a tailored breakdown of how ERC-1155 fits your model, along with actionable recommendations to implement it effectively.
ERC-1155 provides the perfect balance of efficiency, compliance, and flexibility for tokenized equity
Supports lazy minting (NFTs minted on purchase), enabling open-ended sales without gas bloat.
On-chain ledger + off-chain cap table = auditable, tamper-proof records.
Batch minting/transfers reduce gas costs; ERC-1155's efficiency lowers per-transaction fees.
Metadata can embed Subscription Agreement hashes, lockup terms, and transfer restrictions.
Upgradeable metadata allows real-time updates to valuation, round details, and corporate docs.
Post-lockup, NFTs can be subdivided into ERC-20 penny shares or transferred (with restrictions).
Whitelist-based access enforces Reg D/Reg S rules; metadata links to legal documents.
A dual-token architecture combining compliance with liquidity
Smart Contract: Equity1155.sol
NFTs are minted only upon purchase, saving gas.
{
"name": "3Sixty6 Media NFT Equity Unit (Round 1)",
"description": "Represents 1,000 common shares at $0.01/share (FMV v1.0)",
"attributes": [
{"trait_type": "Round", "value": "Rolling Raise v1.0"},
{"trait_type": "FMV", "value": "$0.01/share"},
{"trait_type": "Lockup Expiration", "value": "2027-12-31"},
{"trait_type": "Transfer Restrictions", "value": "Whitelist + 5% fee"},
{"trait_type": "Subscription Agreement", "value": "IPFS://QmXoypiz..."},
{"trait_type": "Holder Type", "value": "Accredited Investor (Reg D 506(c))"}
],
"legal": {
"bylaws": "IPFS://QmBylaws...",
"kyc_aml": "Verified by Sumsub",
"whitelist_status": "Approved"
}
}Smart Contract: PennyShareERC20.sol
1 NFT → 1,000 ERC-20 shares (burn-and-mint mechanism).
Inherits all transfer/whitelist rules from the parent NFT.
function addToWhitelist(address _investor, string memory _kycHash) public onlyOwner {
require(!whitelisted[_investor], "Already whitelisted");
whitelisted[_investor] = true;
kycRecords[_investor] = _kycHash;
emit Whitelisted(_investor);
}
function isWhitelisted(address _investor) public view returns (bool) {
return whitelisted[_investor];
}Off-Chain Oracle: Use Chainlink to push FMV updates to metadata.
Example: If revenue KPIs are hit, FMV updates from $0.01 → $0.16/share. New NFTs minted reflect the current FMV; existing holders retain their entry price.
Smart Contract: TransferFeeController.sol
function _beforeTokenTransfer(
address operator,
address from,
address to,
uint256[] memory ids,
uint256[] memory amounts,
bytes memory data
) internal override {
require(whitelistRegistry.isWhitelisted(to), "Recipient not whitelisted");
uint256 fee = (amounts[0] * transferFee) / 100; // 5-20%
payable(treasuryWallet).transfer(fee);
}Phased deployment to minimize risk and ensure compliance
Proactive risk management for tokenized equity implementation
SEC or state regulators could challenge tokenized equity structure.
Work with a securities lawyer to ensure Reg D/Reg S compliance; embed legal docs in metadata.
Vulnerabilities in smart contract code could lead to unauthorized transfers.
Audit contracts with CertiK or OpenZeppelin; use testnets for thorough testing.
Limited secondary market could reduce perceived value.
Highlight post-lockup subdivision and secondary market options in marketing.
High network fees could impact user experience.
Deploy on Polygon PoS (low fees) and use lazy minting.
Fake identities could bypass compliance requirements.
Use Sumsub/Onfido for identity verification; manual review for large investments.
Investors may challenge valuation methodology.
Use independent valuations and transparent KPIs for adjustments.
Why Polygon?
Low Fees: ~$0.01 per transaction (vs. $50+ on Ethereum).
Scalability: Handles thousands of minting/transfer transactions.
EVM Compatible: Works with MetaMask, OpenZeppelin, and ERC-1155.
Adoption: Used by Reddit, Starbucks, and Disney for NFTs.
Starting point for your ERC-1155 implementation
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/token/ERC1155/ERC1155.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
contract Equity1155 is ERC1155, Ownable {
address public whitelistRegistry;
address public treasuryWallet;
uint256 public transferFee = 5; // 5%
constructor(address _whitelistRegistry, address _treasuryWallet)
ERC1155("https://ipfs.io/ipfs/{id}.json") {
whitelistRegistry = _whitelistRegistry;
treasuryWallet = _treasuryWallet;
}
function mintEquityUnit(address to, uint256 roundId, string memory metadataURI) public onlyOwner {
uint256 tokenId = roundId;
_mint(to, tokenId, 1, "");
_setURI(tokenId, metadataURI);
}
function _beforeTokenTransfer(
address operator,
address from,
address to,
uint256[] memory ids,
uint256[] memory amounts,
bytes memory data
) internal override {
require(IWhitelistRegistry(whitelistRegistry).isWhitelisted(to), "Recipient not whitelisted");
uint256 fee = (amounts[0] * transferFee) / 100;
payable(treasuryWallet).transfer(fee);
}
}
interface IWhitelistRegistry {
function isWhitelisted(address investor) external view returns (bool);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/access/Ownable.sol";
contract WhitelistRegistry is Ownable {
mapping(address => bool) public whitelisted;
mapping(address => string) public kycRecords;
function addToWhitelist(address investor, string memory kycHash) public onlyOwner {
whitelisted[investor] = true;
kycRecords[investor] = kycHash;
}
function isWhitelisted(address investor) public view returns (bool) {
return whitelisted[investor];
}
}Actionable recommendations to implement your ERC-1155 framework
Use the snippets above as a starting point. Add FMV update logic (Chainlink oracle) and lockup enforcement.
Integrate Sumsub or Onfido with WhitelistRegistry.sol.
Test minting, transfers, and fee collection.
Use Next.js + MetaMask SDK for wallet connection. Display FMV, lockup status, and transfer history.
Ensure Subscription Agreement and metadata comply with Reg D/Reg CF.