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NewChain Address Identifier (NAI)

This documentation explains the address identification system used by NewChain, the blockchain behind Newton's ecosystem.

NewChain addresses are 39 characters long, and constructed from:

  • Newton's unique identifier (NEW)
  • Chain ID - you can choose from testnet or mainnet
  • Actual address
  • Checksum to reduce errors

An example NewChain address is:

NEW182X4BUrUViiVZUMibXgjFy77Z8M2g5okr2B

The following items are encoded:

3-character Newton identifier:

NEW182X4BUrUViiVZUMibXgjFy77Z8M2g5okr2B

Chain ID (maximum of 4 bytes):

NEW182X4BUrUViiVZUMibXgjFy77Z8M2g5okr2B

Actual address:

NEW182X4BUrUViiVZUMibXgjFy77Z8M2g5okr2B

Four bytes (32 bits) of SHA3-based checksum:

NEW182X4BUrUViiVZUMibXgjFy77Z8M2g5okr2B

(The last four bytes of the SHA3-based error checking code reduce the accidental address errors which occur in Ethereum.)

From Private Key to NewChain Address

This is the step-by-step process for going from a private key to a NewChain address

We start with a 256-bit private key:

eec7d48ec12e2f8f6da7683eb202529d35cd814875d23b0eba127ab01f73239b

The public key is created by running the private key through secp256r1:

e19e548c22765859940e854f863a2932e637415b9efaf32cbd21452369cc8e764c57e0a89a0b0c64c6cebd70385c03d8f570b6baf8dcd75502404719aee84461

The uncompressed public key is hashed with the Keccak-256 algorithm:

c5592e6aab131b88a728868154db4d39cedeaf78af1d15aa540570ca168fe303

We take the last 40 characters for the hashed public key...:

54db4d39cedeaf78af1d15aa540570ca168fe303

...convert the chainID(1012) to hex string:

3f4

...and combine this with our hex address string:

3f454db4d39cedeaf78af1d15aa540570ca168fe303

...run with base58check encode

182Ln6vMMXGRwPbESbyGCxc3U3sPU1PrcKw8

We then combine this with our network ID (NEW) base58check's result to get the final NewChain address:

NEW182Ln6vMMXGRwPbESbyGCxc3U3sPU1PrcKw8

Background Reading

NewChain lives in a multi-chain world. For end users, it's perfectly common to transfer value from an address on network A to an address on network B.

The Bitcoin protocol uses Base58Check encoding to prevent users sending value off-network, while Ethereum uses a raw hex version of the address.

At present this system works with NewChain, but will also work with other blockchains in the future.