standards index

Standards.

Every LSP and the ERC substrate it builds on. Grouped by purpose so the composition is visible: an account contract (LSP0) + a permission layer (LSP6) + a metadata store (ERC-725Y) is not "one big spec" — it's a stack.

Looking for the one-glance answer? matrix the ERC ↔ LSP matrix

Account

LSP·0 ERC-725 Account The account contract. Owns assets, holds metadata, executes calls, accepts hooks.

Permission

LSP·6 Key Manager The permission layer. Many controllers per account, each with a scoped permission bitfield.
LSP·14 Ownable 2-Step Ownership transfer is two steps — set pending, then accept. No more send-to-wrong-address.

Execution

LSP·1 Universal Receiver One receiver hook for every asset type, every transfer, every contract-to-contract notification.
LSP·17 Contract Extension Fallback router by function selector. Grow a deployed contract without an upgrade key.
LSP·20 Call Verification Inline verification — the account validates the call before it executes, no separate guard contract.
LSP·25 Execute Relay Call Gasless execution on the account itself — controller signs, relayer submits.

Token

LSP·7 Digital Asset Fungible and semi-fungible tokens, with native receiver hooks and operator authorization.
LSP·8 Identifiable Digital Asset NFTs and identifiable items. bytes32 IDs, per-token ERC-725Y data, LSP1 hooks.

Metadata

LSP·3 Profile Metadata The standard keys for what a Universal Profile is — name, image, links, tags.
LSP·4 Digital Asset Metadata Standard ERC-725Y keys for digital asset metadata — collection name, symbol, JSON schema.
LSP·5 Received Assets The data keys that let an account list every asset it has ever received.
LSP·12 Issued Assets The dual of LSP5 — the data keys for assets a profile created or curated.

Social

LSP·26 Follower System Follow / unfollow as on-chain primitives — social state, not platform state.

Substrate

ERC-725 Smart Account Substrate The ERC at the bottom of every LSP — execute calls (725X) and store typed data (725Y).