dapplion

import {randomBytes} from "node:crypto";
import {compress} from "snappyjs";
import {phase0, ssz} from "@lodestar/types";
import {BitArray} from "@chainsafe/ssz";

// To run:
// $ ../../node_modules/.bin/ts-node --esm test/unit/network/snappy.test.ts

/* eslint-disable no-console */

dapplion

import { ssz } from "@lodestar/types";
import { createBeaconConfig } from "@lodestar/config";
import { fromHexString, toHexString } from "@chainsafe/ssz";
import bls from "@chainsafe/bls";

// To run, first install dependencies:
// $ npm install @lodestar/types @lodestar/config @chainsafe/ssz @chainsafe/bls
//
// Then
// $ node signature_verify.mjs

dapplion

// Usage
// node slot_finder.mjs chiado

const genesisTimestamp = getGenesis();
const interval = 8192 * 5;

const now = Math.floor(Date.now() / 1000);
const futureDate = new Date();
futureDate.setMonth(futureDate.getMonth() + 2);
const futureTimestamp = Math.floor(futureDate.getTime() / 1000);

dapplion

import requests

# make the API request
url = "http://localhost:4000/eth/v1/beacon/states/head/validators"
response = requests.get(url)

# check if request was successful
if response.status_code != 200:
    print(f"Error: API request returned status code {response.status_code}")
    exit()

dapplion

import { execSync } from "node:child_process";

const URL = "https://nodewatch.chainsafe.io/query";

// From https://github.com/gnosischain/configs/blob/main/mainnet/config.yaml
const known_versions = {
  "0x00000064": "gnosis-phase0",
  "0x01000064": "gnosis-altair",
  "0x02000064": "gnosis-bellatrix",
};

dapplion

import {execSync} from "node:child_process";

// Usage
// ```
// node ttd.mjs https://rpc.eu-central-2.gateway.fm/v3/gnosis/archival/chiado
// ```

const rpcUrl = process.argv[2] ?? "https://rpc.gnosischain.com/";
const blocksPerDay = 17280;

dapplion

import { execSync } from "node:child_process";

// Usage
// ```
// node ttd.mjs "Oct 29 2022 14:00:00 GMT+0000" latest https://rpc.eu-central-2.gateway.fm/v3/gnosis/archival/chiado
// ```

const ttdTargetDateStr = process.argv[2];
const blockNumberReference = process.argv[3] ?? "latest";
const rpcUrl = process.argv[4] ?? "https://rpc.gnosischain.com/";

dapplion

I contributed to the Semaphore Trusted Setup Multi-Party Ceremony.
The following are my contribution signatures:
Circuit: semaphore16 
          Contributor # 245
          Hash: e62246a7 79cc0f04 aaa08808 3b9b07d8
 689eba3d ca17a156 653f5f57 20439ac0
 be869762 878167e3 042faaab d58f4fe8
 6c6c14dc 0ecacfa4 a91dad0a 9e52cc5a

dapplion

const d = 38; // Mainnet specs = 2**40 / 4
const chunkCount = 200_000 / 4; // Mainnet size, GWei = uint64, 4 on each 32 bytes chunk

const syncCommitteeSize = 2 ** 9; // Mainnet specs

const indexes: number[] = [];
for (let i = 0; i < syncCommitteeSize; i++) {
  // Does not consider the possibility of two indexes fiting in the same chunk. Tho this is very rare.
  indexes.push(Math.floor(chunkCount * Math.random()));
}

dapplion

import {ssz} from "@chainsafe/lodestar-types";

let i = 0;
const heapUsed = process.memoryUsage().heapUsed;

while (true) {
  getBigStateTreeBacked();
  global.gc();
  console.log(i++, (process.memoryUsage().heapUsed - heapUsed) / 1e6, "MB");
}