bitcoin-spv-utils

API

• bits2buf(Number bits)
• buf2bits(Buffer buf)
• getMaxTarget()
• getTarget(Buffer first, Buffer last)
• verifyHeader(Buffer header, Buffer previous, Object target [, Boolean isTestnet = false])
• verifyHeaders(Buffer[] headers, Buffer previous, Object target [, Boolean isTestnet = false]

bits2buf(Number bits) -> Buffer

Unpack bits.

buf2bits(Buffer buf) -> Number

Pack bits.

getMaxTarget() -> {bits: Number, buf: Buffer}

Return max target. (bits -- 0x1d00ffff, hex -- 00000000ffff0000000000000000000000000000000000000000000000000000)

getTarget(Buffer first, Buffer last) -> {bits: Number, buf: Buffer}

Calculate target of next chunk.

verifyHeader(Buffer header, ?Buffer previous, Object target [, Boolean isTestnet = false]) -> Boolean

Verify given header.

verifyHeaders(Buffer[] headers, ?Buffer previous, Object target [, Boolean isTestnet = false] -> Boolean

Verify given headers.

License

Code released under the MIT license.