# Reference

- [On-Chain Reference](/reference/on-chain-reference.md)
- [On-Chain Diagram V3+](/reference/on-chain-reference/on-chain-diagram-v3+.md)
- [On-Chain Diagram V2+](/reference/on-chain-reference/on-chain-diagram-v3+/on-chain-diagram.md)
- [V1 On-Chain Diagram](/reference/on-chain-reference/on-chain-diagram-v3+/on-chain-diagram-v1.md)
- [Registry Application IDs](/reference/on-chain-reference/registry-application-ids.md): These are the Algorand Application IDs of the NFD registry contract, per Algorand network.
- [Contract methods](/reference/on-chain-reference/contract-methods.md)
- [Name & Address Lookup](/reference/on-chain-reference/name-and-address-lookup.md)
- [V1 Resolution example (go)](/reference/on-chain-reference/name-and-address-lookup/v1-resolution-example-go.md)
- [Example PyTeal name/ID validity check](/reference/on-chain-reference/name-and-address-lookup/v1-resolution-example-go/example-pyteal-name-id-validity-check.md)
- [NFDs owned by Address](/reference/on-chain-reference/nfds-owned-by-address.md)
- [Reading of NFD metadata](/reference/on-chain-reference/reading-of-nfd-metadata.md)
- [Properties](/reference/on-chain-reference/properties.md)
- [Contract Changelog](/reference/on-chain-reference/contract-changelog.md)
- [NFDomains REST API Reference](/reference/nfdomains-rest-api-reference.md)
- [Integrators Guide](/reference/integrators-guide.md)
- [Using an NFD for sending assets to Algorand accounts](/reference/integrators-guide/using-an-nfd-for-sending-assets.md): Wallet 'send'
- [Using an NFD to sending to non-Algorand chains.](/reference/integrators-guide/using-an-nfd-to-sending-to-non-algorand-chains..md)
- [Resolving an Algorand address to an NFD name / avatar](/reference/integrators-guide/resolving-an-algorand-address-to-an-nfd-name-avatar.md)
- [Fetching all NFDs owned by an address](/reference/integrators-guide/fetching-all-nfds-owned-by-an-address.md)
- [Interactive NFD lookup](/reference/integrators-guide/interactive-nfd-lookup.md)
- [Discord / Telegram bots](/reference/integrators-guide/discord-telegram-bots.md)
- [Linking an Application to an NFD](/reference/integrators-guide/linking-an-application-to-an-nfd.md)
- [Using Vaults (2.x+)](/reference/integrators-guide/using-vaults-2.x+.md)
- [Expirations  / MBR liquidation](/reference/integrators-guide/expirations-mbr-liquidation.md)
- [API Changelog](/reference/api-changelog.md)
- [Status Page](/reference/status-page.md)