Cross-chain

MetaID V2 is designed to operate on Bitcoin and Bitcoin-structured blockchains. As long as the indexer supports it, PINs can theoretically be built on any Bitcoin-structured blockchain. All transactions that comply with the MetaID protocol format, even if dispersed across different blockchains, can be aggregated under a single MetaID node.

Support for cross-chain compatibility is theoretically feasible with any Bitcoin-structured blockchain that meets the following criteria:

  • Uses a UTXO architecture.

  • Locking scripts support the op_return operator.

  • Supports the classic Bitcoin address format (i.e., Bitcoin addresses prefixed with β€œ1”).

At present, in addition to Bitcoin, the following major public chains meet the conditions supported by MetaID. With future support from relevant indexers and wallets, these chains are expected to be supported:

  • MVC

  • BCH

  • eCash

  • Dogecoin

  • Litecoin

  • Bitcoin SV

When implementing cross-chain support in wallets and applications, the following concepts should be noted:

Unified Address

[TBD]

Unified UTXO Chain

[TBD]

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