Soft binding

import { hexlify, getBytes, encodeBase64, decodeBase64 } from 'ethers'
 
// 0x-hex → base64 (what goes in the assertion)
const value = encodeBase64(getBytes(fingerprint))
 
// base64 → 0x-hex (what the contract expects)
const fingerprint = hexlify(decodeBase64(value))

import { toHex, hexToBytes } from 'viem'
 
// 0x-hex → base64 (what goes in the assertion)
const value = Buffer.from(hexToBytes(fingerprint)).toString('base64')
 
// base64 → 0x-hex (what the contract expects)
const fingerprint = toHex(new Uint8Array(Buffer.from(value, 'base64')))

import { readFile } from 'node:fs/promises'
import { createHash } from 'node:crypto'
import { JsonRpcProvider, Contract } from 'ethers'
 
const RPC = 'https://rpc.stabilityprotocol.com/zgt/try-it-out'
 
const { address, abi } = await fetch(
  'https://api.joinmonolith.com/c2pa/contract'
).then(r => r.json())
 
const bytes = await readFile('found-image.png')
const fingerprint =
  '0x' + createHash('sha256').update(bytes).digest('hex')
 
const registry = new Contract(
  address, abi, new JsonRpcProvider(RPC, 101010)
)
 
const [source, endpoints, manifestId, manifestHash, registeredBy, ts] =
  await registry.resolveByBindingDetailed(fingerprint)
 
console.log(source === 1n ? 'curated' : 'public')
console.log(manifestId)  // e.g. '0f9a4c1e-…-b7d2'
console.log(endpoints)   // [ 'https://api.joinmonolith.com/api/c2pa' ]

import { readFile } from 'node:fs/promises'
import { createHash } from 'node:crypto'
import { createPublicClient, http } from 'viem'
 
const RPC = 'https://rpc.stabilityprotocol.com/zgt/try-it-out'
 
const { address, abi } = await fetch(
  'https://api.joinmonolith.com/c2pa/contract'
).then(r => r.json())
 
const bytes = await readFile('found-image.png')
const fingerprint =
  '0x' + createHash('sha256').update(bytes).digest('hex')
 
const client = createPublicClient({ transport: http(RPC) })
 
const [source, endpoints, manifestId, manifestHash, registeredBy, ts] =
  await client.readContract({
    address, abi,
    functionName: 'resolveByBindingDetailed',
    args: [fingerprint]
  })
 
console.log(source === 1 ? 'curated' : 'public')
console.log(manifestId)  // e.g. '0f9a4c1e-…-b7d2'
console.log(endpoints)   // [ 'https://api.joinmonolith.com/api/c2pa' ]

const filter = registry.filters.PublicSoftBindingRegistered()
const latest = await provider.getBlockNumber()
 
// Query in chunks — the RPC caps how many blocks one filter may span
for (let from = latest - 50_000; from <= latest; from += 10_000) {
  const to = Math.min(from + 9_999, latest)
  for (const log of await registry.queryFilter(filter, from, to)) {
    console.log(log.args.fingerprint, log.args.registeredBy)
  }
}

import { parseAbiItem } from 'viem'
 
const event = parseAbiItem(
  'event PublicSoftBindingRegistered(bytes32 indexed fingerprint, address indexed registeredBy, string[] endpoints, string manifestId)'
)
 
const latest = await client.getBlockNumber()
 
// Query in chunks — the RPC caps how many blocks one filter may span
for (let from = latest - 50_000n; from <= latest; from += 10_000n) {
  const to = from + 9_999n > latest ? latest : from + 9_999n
  const logs = await client.getLogs({ address, event, fromBlock: from, toBlock: to })
  for (const log of logs) {
    console.log(log.args.fingerprint, log.args.registeredBy)
  }
}