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zkBob AppLinks & Resources
  • 🦹zkBob Overview
    • zkBob
    • Basic Concepts
      • Getting Started
      • Open-Source and Decentralized
      • Multichain Deployment
      • Usage Statistics
      • Use Cases
        • Employee Salary
        • Vendor Purchasing
      • Development Timeline
      • zk Privacy Solution Comparison
    • zkBob Pools
      • USDC Pool on Polygon (sunsets January 31, 2025)
      • USDC Pool on Optimism
      • ETH Pool on Optimism
      • USDT Pool on Tron (sunsets Oct 29, 2024)
    • Fees
      • Unspent note handling
    • Deposit & Withdrawal Limits
    • Compliance & Security
      • TRM Labs Integration
    • Conferences, Workshops, Videos
      • International Videos
    • Governance
    • BOB Stablecoin
    • zkBob FAQ
  • 🦸‍♂️zkBob Application
    • UI Overview
    • Account Creation
      • Login to an existing account
      • Lost Password
      • Metamask / Web3 Wallet Warning
    • Deposits
    • Transfers
      • Multitransfers
    • Withdrawals
      • Native Token Conversion
    • Generate a Receiving Address
    • Optional KYC
    • zkBob Direct Deposits
    • Support ID
    • Payment Links
    • Integrated Services
    • Multilingual support
      • Português
      • Русский
      • 中文
  • 👩‍⚕️Technical Implementation
    • zkBob Application Overview
    • Deployed Contracts
    • Smart Contracts
      • zkBob Pool Contract
        • Transaction Calldata
      • Bob Token Contract
      • Verifier contracts
      • Operator Manager Contract
        • Mutable Operator Manager
      • Voucher (XP) Token Contract
    • Accounts and Notes
      • Accounts
      • Notes
    • Relayer Node
      • Relayer Operations
      • Optimistic State
      • REST API
    • zkBob Keys
      • Address derivation
      • Ephemeral keys
    • zkSNARKs & Circuits
      • Transfer verifier circuit overview
    • zkBob Merkle Tree
      • The Poseidon Hash
    • Elliptic Curve Cryptography
    • Transaction Overview
      • Common Structure
      • Memo Block
        • Memo Block Encryption
      • Transaction Types
      • Nullifiers
      • Signing a Transaction
      • The Transaction Lifecycle
    • Client Library SDK
      • Configuration
        • Initializing the client
          • Client Configuration
        • Attaching a User Account
          • Account Configuration
        • Switching Between Pools
      • Account-less Mode Operations
        • Converting Token Amounts
        • Transaction Fees
        • Transaction Constraints
        • Using the Delegated Prover
        • Getting the State
        • Gift Cards
        • Client Library Status
        • Helpers
        • Versioning
      • Full Mode Operations
        • Balances and History
        • Shielded Addresses
        • Account State
        • Fee Estimations
        • Transaction Configuration
        • Sending Transactions
        • Transaction Maintenance
        • Direct Deposits
        • Gift Cards Maintenance
        • Ephemeral Deposits
        • Forced Exit
        • Other Routines
      • Common Types
      • Full Functions List
      • Utilities
  • 👩‍🏫Deployment
    • Trusted Setup Ceremony
    • Contract Deployment
    • Relayer Subsystem
  • 👷‍♂️Roadmap
    • On the Roadmap
    • Exploratory Features
      • XP (Experience Points)
        • XP-based Auctions
      • Multi-chain Custom Rollup Deployment
      • Round-robin Operator Manager
      • Compounding
  • 🧑‍💻Jobs
    • Zero-Knowledge Researcher & Protocol Developer
  • 🧩Resources
    • Visual Assets
    • Hackathons
      • zkBob Cloud
    • Release Notes
      • October 11, 2023
      • July 13, 2023
      • June 13, 2023
      • March 28, 2023
      • January 30, 2023
      • January 16, 2023
      • January 2, 2023
      • Releases 2022
    • Security Audit
    • Github
    • Link tree
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  1. zkBob Overview
  2. Basic Concepts

Development Timeline

PreviousVendor PurchasingNextzk Privacy Solution Comparison

Last updated 9 months ago

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zkBob has been in research and development since December 2020. The original concept was initiated by members of the now defunct xDai research group and the team. Chains with robust infrastructure led contributors to select Polygon and then Optimism for deployment.

zkBob Timeline

  • December 2020: R&D initiated.

  • June 2021: Prototyping and ongoing contract development on xDai.

  • December 2021: New contributors improve contracts, implement applications, prepare Kovan deployment.

  • March 2022: Testing, bug fixing, protocol updates and enhancements.

  • August 2022: Prep for beta launch and trusted ceremony, select Polygon for initial deployment.

  • April 2023: Second deployment on Optimism, making zkBob a multichain app.

  • July 2023: First ETH pool deployed on Optimism.

  • August 2023: introduced.

  • Ongoing: zkBob pools are self-sustaining and available on Polygon, Optimism and Tron. Periodic reviews are conducted to determine appropriate limits and other updates to the protocol.

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