@web3-storage/data-segment

Implementation of the FRC-0058 verifiable aggregation scheme.

API

import { Piece, MIN_PAYLOAD_SIZE } from "@web3-storage/data-segment"

// input must be >= 65 bytes
const bytes = new Uint8Array(MIN_PAYLOAD_SIZE)

const piece = Piece.fromPayload(bytes)

// bafkzcibbai3tdo4zvruj6zxo6wlt4suu3imi6to4vzmaojh4n475mdp5jcbtg
const cid = piece.link.toSting()

Prior Art

Started as fork of js-fil-utils modernizing it to use ES modules and web crypto APIs in place of node APIs.

However, js-fil-utils produces different results from the more widely used go implementation which is why it got some heavy lifting inspired by go-data-segment and go-fil-commp-hashhash libraries.