generated: '2026-07-19'
method: derived
source: graphql/freeverse-laos-indexer-schema.graphql, graphql/freeverse-laos-client-api-schema.graphql
docs: https://docs.laosnetwork.io/api/introduction
entities:
- name: OwnershipContract
  description: An ERC721 ownership contract on a target chain (Ethereum/Polygon) with its sibling LAOS collection.
  key: id
  fields: [id, laosContract, name, symbol, bytecodeHash]
- name: Token
  description: A bridgelessly-minted NFT (asset) with dynamic, evolvable metadata.
  key: tokenId
  fields: [tokenId, laosContract, contractAddress, owner, initialOwner, tokenUri, name, description, image, attributes, createdAt, block_number]
- name: TokenHistory
  description: A past state of a token capturing evolutions and metadata changes over time.
  fields: [contractAddress, tokenUri, name, description, image, attributes, block_number, tx_hash, updatedAt]
- name: Transfer
  description: An on-chain ownership transfer event for a token.
  fields: [from, to, timestamp, blockNumber, txHash, tokenId, contractAddress]
- name: Attribute
  description: A trait_type/value metadata attribute attached to a token.
  fields: [trait_type, value]
- name: Collection
  description: A minting collection created via createCollection; deploys the ERC721 + batch-minter and a sibling LAOS collection.
  fields: [chainId, name, symbol, contractAddress, laosAddress, batchMinterAddress]
relationships:
- from: Token
  to: OwnershipContract
  kind: belongs_to
  via: contractAddress
- from: OwnershipContract
  to: Token
  kind: has_many
  via: contractAddress
- from: Token
  to: TokenHistory
  kind: has_many
  via: tokenId
- from: Token
  to: Transfer
  kind: has_many
  via: tokenId
- from: Token
  to: Attribute
  kind: has_many
  via: attributes
- from: OwnershipContract
  to: Collection
  kind: has_one
  via: laosContract (sibling LAOS collection address)
identifiers:
  chainId: {type: string, values: ['1 (Ethereum)', '137 (Polygon)']}
  contractAddress: EVM 0x address of the ERC721 on the target chain
  laosAddress: EVM address of the sibling collection on LAOS (0xffff...)
  tokenId: uint256 rendered as decimal string