Hats Protocol Docs
hatsprotocol.xyzGithub
  • ๐Ÿ‘‹Welcome to Hats Protocol
  • ๐ŸงขGetting Started with Hats
  • โญQuick Start
  • Using The Hats App
    • ๐Ÿค Essentials For Hat Wearers
    • ๐ŸŽฉCreating My First Hat
    • ๐Ÿง™Admins: Creating, Issuing, and Revising Hats
    • ๐Ÿ‘ฅWhat Hats Do I Need?
    • ๐ŸŒณDrafting, Exporting, and Deploying Tree Changes
    • ๐Ÿ—๏ธSetting a Hat's Basic Properties
    • ๐ŸฅณAdding Wearers
    • ๐Ÿ”Connecting Hats w/ Permissions & Authorities
      • Types of Hat-Powered Authorities
      • Connecting Hats to Token Gates
        • Hats Protocol Contract Addresses
        • Finding a Hat's Token ID
      • Documenting Hat Powers & Responsibilities
    • ๐ŸŒŸRevocation & Eligibility: Requirements for Wearers
    • โšกDeactivating & Reactivating Hats
    • โœ…Making Hats Claimable
    • ๐Ÿ”—Linking Trees Together
    • โ›“๏ธHats Protocol Supported Chains
    • โ“Glossary & FAQ
  • Hats Integrations
    • ๐Ÿ”Permissions & Authorities
      • Coordinape
      • Council Voting Vault
      • Charmverse
      • Discord
        • Collab.Land --> Discord
        • Guild.xyz --> Discord
      • Farcaster Casting Rights
      • Fileverse
      • Google Workspace
      • Hats Account
      • Role-Based Compensation
      • Safe Multisig Signing Authority
      • Telegram
        • Collab.Land --> Telegram
        • Guild.xyz --> Telegram
      • Snapshot: Voting, Weight & Proposal Creation
      • Wonderverse
    • ๐ŸŒŸEligibility & Accountability Criteria
      • Agreement Eligibility
      • Allow-List Eligibility
      • CoLinks Eligibility
      • ERC20 Eligibility
      • ERC721 Eligibility
      • ERC1155 Eligibility
      • Hat-Wearing Eligibility
      • Hats Election Eligibility
      • JokeRace Eligibility
      • Pass-Through (Hat-Based) Eligibility
      • Staking Eligibility
      • Subscription or Membership Fee (Unlock Protocol)
      • Gitcoin Passport Eligibility
    • โšกActivation & Deactivation Criteria
      • Seasonal/ Time-Expiry Toggle
      • Pass-Through (Hat-Based) Toggle
    • ๐Ÿ‘ทHatter Modules
      • Multi Claims Hatter
      • DAOhaus Moloch v3 Membership & Share Allocation
  • For Developers
    • ๐Ÿ‘ทHats Protocol, for Developers
      • Hat Properties
      • Wearing a Hat
      • Hat Admins & Hatter Contracts
      • Hats Trees
      • Hat IDs
      • Linking Hats Trees
      • Eligibility Modules
      • Toggle Modules
      • Hat Mutability and Editing
      • Creating Hats
      • Minting Hats
      • Transfering Hats
      • Renouncing Hats
      • Batch Actions
      • Hat Image URIs
      • ERC1155 Compatibility
      • โ›“๏ธSupported Chains
    • ๐Ÿค–v1 Protocol Spec
      • Hats.sol
      • HatsEvents.sol
      • HatsErrors.sol
      • HatsIdUtilities.sol
      • Interfaces
        • IHats.sol
        • IHatsIdUtilities.sol
        • IHatsEligibility.sol
        • IHatsToggle.sol
    • ๐Ÿ–ฅ๏ธv1 SDK
      • Core
        • Getting Started
        • Onchain Reads
        • Onchain Writes
        • Multicall
        • Claiming Hats
        • Utilities
      • Subgraph
        • Getting Started
        • Fetching Hats
        • Fetching Wearers
        • Fetching Trees
        • Misc
        • Types
      • Hat Details
        • Getting Started
        • Usage
    • ๐Ÿ”ญv1 Subgraphs
    • ๐ŸงฉHats Modules
      • ๐Ÿ”ŒModules SDK
        • Getting Started
        • Get Available Modules
        • Create New Instance/s
        • Composing Modules
        • Interact With Instances
        • Utilities
        • Types
      • โš’๏ธBuilding Hats Modules
        • Inside a Hats Module
          • Immutable Arguments
          • Module Setup
          • Versioning
        • Creating New Modules
        • How Module Instances Are Deployed
        • Modules Registry
        • About Module Chains
    • ๐Ÿ”Hats Signer Gate v2
    • ๐Ÿ‘’Hats Signer Gate SDK
      • Getting Started
      • Creating New Instances
      • Hats Signer Gate
      • Multi Hats Signer Gate
      • HSG & MHSG Handlers
    • ๐Ÿ’ผHats Account SDK
      • 1 of N Hats Account
        • Getting Started
        • Creating New Instances
        • Executing From An Instance
        • Constants
        • Types
    • ๐ŸŒHats Security Audits
  • Legal
    • Terms
      • Terms of Service
      • Acceptable Use
      • Privacy Policy
      • Cookie Policy
      • Attribution
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  2. Hats Protocol, for Developers

Hat Mutability and Editing

In some cases, a hat's properties should be immutable to give everybody (particularly the wearer(s)) maximal confidence in what they are signing up for. But this certainty comes at the expense of flexibility, which is often valuable for DAOs as they evolve and learn more about what their various roles are all about. With this trade-off in mind, Hats can be created as either mutable or immutable.

An immutable hat cannot be changed at all once it has been created. A mutable hat can be changed after it has been created. Only its admin(s) can make the change.

Changes are allowed to the following Hat properties:

  • details

  • maxSupply - as long as the new maxSupply is not less than the current supply

  • eligibility

  • toggle

  • mutable - this is a one-way change

  • imageURI

Additionally, mutable hats can be transferred by their admins to a different wearer. Immutable hats cannot be transferred.

Top Hat Exception

The only exception to the above mutability rules is for Top Hats, which despite being immutable are allowed to change their own details and imageURI (but not other properties).

Note that this only includes non-linked Top Hats; a Top Hat that has been linked (aka grafted) onto another hat tree is no longer considered a Top Hat, and therefore is subject to the same mutability rules as other hats.

PreviousToggle ModulesNextCreating Hats

Last updated 1 year ago

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