@multiformats/murmur3

MultihashHasherss are exported from this library, they produce MultihashDigests. Details about these can be found in the multiformats multihash interface definitions.

import * as Block from 'multiformats/block'
import * as codec from '@ipld/dag-cbor'
import { murmur3128 as hasher } from '@multiformats/murmur3'

async function run () {
  const value = { hello: 'world' }
  const block = await Block.encode({ value, hasher, codec })
  console.log(block.cid)
  // -> CID(bafyseebn7ksk6khsn4an2lzmae6wm4qk)
}

run().catch(console.error)
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Usage

The @multiformats/murmur3 package exports murmur332 and murmur3128 MultihashHashers. The Multicodecs table defines these multihashes.

The murmur3-32, multicodec code 0x23, may be imported as:

import { murmur332 } from '@multiformats/murmur3'
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The murmur3-128, multicodec code 0x22, may be imported as:

import { murmur3128 } from '@multiformats/murmur3'
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The murmur3-x64-64 (which is first 64-bits of murmur3-128 used in UnixFS directory sharding), multicodec code 0x22, may be imported as:

import { murmur364 } from '@multiformats/murmur3'
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