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Applications

Applications and services built on Bitmark.

Marked (Social Client)​

A social marking application for discovering and marking content.

Repository​

github.com/project-bitmark/marked

Features​

  • Mark web content with one click
  • Discover highly-marked content
  • Build reputation as curator
  • Nostr integration
  • Real-time updates

Technology Stack​

  • React 18 + TypeScript
  • Tailwind CSS
  • Vite
  • Nostr protocol
  • Bitcoin Connect

Running Locally​

git clone https://github.com/project-bitmark/marked.git
cd marked
npm install
npm run dev

Docker​

docker build -t marked .
docker run -p 3000:3000 marked

Timestamping Service​

Proof-of-existence timestamping using Bitmark.

Calendar Server​

  • URL: https://calendar.bitmark.one/
  • Backup: https://173.255.212.141/

Usage​

# Using ots-cli
npm install -g opentimestamps

# Timestamp a file
ots-cli.js -c https://calendar.bitmark.one/ stamp document.pdf

# Verify timestamp
ots-cli.js verify document.pdf.ots

Integration​

const OpenTimestamps = require('opentimestamps');

async function timestamp(fileHash) {
  const detached = OpenTimestamps.DetachedTimestampFile.fromHash(
    new OpenTimestamps.Ops.OpSHA256(),
    Buffer.from(fileHash, 'hex')
  );

  await OpenTimestamps.stamp(detached, {
    calendars: ['https://calendar.bitmark.one/']
  });

  return detached.serializeToBytes();
}

Noskey​

Cryptographic key generation utility.

Repository​

github.com/project-bitmark/noskey

Features​

  • Generate Nostr keys (nsec, npub)
  • Generate Bitmark addresses
  • Generate Bitcoin addresses
  • SSH key generation
  • Vanity key support

Usage​

npx noskey

# Output:
# Private Key (hex): abc123...
# Public Key (hex): def456...
# nsec: nsec1...
# npub: npub1...
# Bitmark Address: bKxE7...
# Bitcoin Address: 1ABC...

Git Integration​

Git Mark​

Anchor git commits to Bitmark blockchain.

Website: git-mark.com

Usage​

# Mark a commit
git mark HEAD

# Verify a commit's mark
git mark --verify abc123

Configuration​

# Set up git hooks
git config --local bitmark.address bYourAddress
git config --local bitmark.automark true

Payment Tools​

iPago​

Payment integration library.

CoinBin​

Coin management utilities for developers.

Features:

  • UTXO management
  • Transaction building
  • Address generation
  • Multi-signature support

Ecosystem Directory​

bitmark.rocks​

Interactive resource directory.

URL: bitmark.rocks

Content:

  • Explorer links
  • Wallet downloads
  • Exchange listings
  • Community resources
  • Development tools

Building Applications​

Using bitmark-api​

const BitmarkAPI = require('bitmark-api-client');

const client = new BitmarkAPI({
  baseUrl: 'http://localhost:3000'
});

// Create a mark
async function markContent(url, privateKey) {
  const hash = crypto.SHA256(url);

  const mark = await client.createMark({
    type: 1,
    reference: url,
    referenceHash: hash
  });

  return mark.txid;
}

Direct RPC​

const bitcoin = require('bitcoinjs-lib');
const Client = require('bitcoin-core');

const client = new Client({
  host: 'localhost',
  port: 9266,
  username: 'bitmarkrpc',
  password: 'yourpassword'
});

// Get blockchain info
const info = await client.getBlockchainInfo();

Nostr Integration​

import { SimplePool, generatePrivateKey, getPublicKey } from 'nostr-tools';

// Connect mark metadata to Nostr
async function publishMarkContext(mark, context) {
  const pool = new SimplePool();

  const event = {
    kind: 30078,
    content: context.description,
    tags: [
      ['d', 'mark-context'],
      ['mark-txid', mark.txid],
      ['reference', mark.reference],
    ]
  };

  await pool.publish(relays, event);
}

Application Ideas​

Content Platforms​

  • Blog with Marks: Readers mark posts, authors earn
  • Image Gallery: Visual content marking
  • Podcast Platform: Audio content with marks

Social Features​

  • Reputation Profiles: Aggregate marks into profiles
  • Leaderboards: Top creators and curators
  • Discovery Feed: Trending marked content

Developer Tools​

  • Mark Analytics: Track mark patterns
  • Integration Widgets: Embed mark buttons
  • Notification Services: Alert on new marks

Infrastructure​

  • Mark Indexers: Specialized mark databases
  • Reference Storage: Off-chain reference hosting
  • API Gateways: Managed API access

See Also​