This document references issuers that have launched Soulbound / Account-bound / non-transferable tokens, or have planned to do so in the future.
Here’s the template used for each issuer and the different pieces of information provided (when available). Feel free to open a PR to add/update an entry in the registry!
Implementation: Standard Interface they adhere to.
Repo: Repository that contains the smart contracts source code.
Details: Explanatory blog post or documentation.
Deployments:
| Chain Id | Smart contract address |
|---|---|
| Chain Id following CAIP-2 format. | Smart contract address of the deployed token smart contract linked to the associated page on a block explorer (eg. Etherscan). |
Implementation: Partial ERC721
Repo: https://github.com/BrightID/BrightID-Soulbound-NFT
Details: https://mirror.xyz/misterplus.eth/a3ytQ7hyN4yU1Cx_bX42TcwA1sy_8RWK9CKQYInYfbg
Deployments:
Implementation: ERC1238 (early proposal)
Repo: https://github.com/reasonedart/bulgari-gift-contract
Details: See Repo.
Deployments:
| Chain Id | Smart contract address |
|---|---|
| eip155:137 | 0xEa58A24502f065A8Cd53b94424d7b0E82B6e697c |
Implementation: ERC1155
Repo: https://github.com/goldfinch-eng/goldfinch-contracts
Details: https://docs.goldfinch.finance/goldfinch/unique-identity-uid
Deployments:
| Chain Id | Smart contract address |
|---|---|
| eip155:1 | 0xba0439088dc1e75F58e0A7C107627942C15cbb41 |
Implementation: ERC1155
Repo:
Details: https://mirror.xyz/mintkudosxyz.eth/jtExIbkK7KV01meH_PMcO9NQbHMV3XmpGECUQNwtG6k
Deployments:
| Chain Id | Smart contract address |
|---|---|
| eip155:137 | 0x60576A64851C5B42e8c57E3E4A5cF3CF4eEb2ED6 |
More details coming soon: https://community.optimism.io/docs/governance/#how-is-optimism-governed
Implementation: ERC721
Repo:
Details: https://badge.orangedao.xyz/
Deployments:
| Chain Id | Smart contract address |
|---|---|
| eip155:137 | 0xc1C6A331D4013f40Ca830C06eD47564D0d2b21cD |
Implementation: ERC4973
Repo: https://github.com/otterspace-xyz/otterspace-contracts
Details: https://otterspace.mirror.xyz/Cec_bTSsLgcohuaV5dkOJTbaYuFB6tF8jhxzN_30k1A
Deployments:
| Chain Id | Smart contract address |
|---|---|
| eip155:4 | 0x9a8469255a7d41a715e539a22eb1127be0973a1e |
Implementation: ERC1155
Repo:
Details: https://claim.rabbithole.gg/
Deployments:
| Chain Id | Smart contract address |
|---|---|
| eip155:137 | 0xac4255ec6885e50352a1957062ac418c2cc94e27 |
Implementation: ERC1155
Repo: https://github.com/sismo-core/sismo-protocol
Details: https://docs.sismo.io/sismo-docs/sismo-protocol/badges
Deployments:
| Chain Id | Smart contract address |
|---|---|
| eip155:137 | 0xF12494e3545D49616D9dFb78E5907E9078618a34 |
Implementation:
Repo:
Details: https://blog.tribz.xyz/openzeppelin-contributor-souldrop
Deployments:
Implementation: ERC721 with custom logic to make keys transferrable or non-transferrable
Repo: https://github.com/unlock-protocol/unlock
Details: https://docs.unlock-protocol.com/move-to-guides/how-to-make-keys-non-transferrable
Deployments:
Implementation: ERC721 (including ERC721Metadata) and EIP-5192
Repo: https://github.com/verida/blockchain-contracts
Details: More details coming soon.
Deployments: More details coming soon.
More details coming soon.