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ERC-7929 PermaLink Asset Bound Token

DraftERCcreated 2025-04-01requires ERC-721

Asset-bound Tokens (ABT) permanently bound to another token, known as PermaLink-ABTs.

Authors: Mihai Onila (@MihaiORO), Nick Zeman (@NickZCZ), Narcis Cotaie (@NarcisCRO)

ERC-165 interface ids

Computed here as the XOR of the selectors each interface defines.

IERC79290x0b76916c

Functions this standard introduces (4)

0x70a08231balanceOf(address)view
0x6352211eownerOf(uint256)view
0x00923f9etokenExists(uint256)view
0x18160dddtotalSupply()view

Optional extensions (1)

Interfaces the spec defines alongside the core one, which an implementation may or may not carry.

IERC7929Reveal0xb93f208a

0xb93f208areveal(uint256[])

Events (2)

Topic0 is the keccak256 hash of the signature, which is what a log filter matches on.

0xde307631de4b1db3d7e0d2f6a377c3d388b2a5233b1c90f57256ff457402d35cAssetBoundContractSet(address)
0xafd1af0d18662bc4cbe66cd3885857264bb71d267eb57c0add879e84a5be3177TokenRevealed(uint256)

Depends on (1)

Proposals this one names in its requires field.

What the specification covers

Compare with

Parsed from the canonical specification · discussion