Research | Spark

Drivechains (BIP-300): The Controversial Proposal to Give Bitcoin Unlimited Sidechains

bcSatoru

Nostr and Bitcoin: How Decentralized Identity Enables Censorship-Resistant Payments

bcMao

Stacks and Clarity: Smart Contracts Anchored to Bitcoin via Proof of Transfer

bcNeutron

Bitcoin Mempool Economics: What Happens When Blocks Are Full and Fees Spike

bcMao

Stablecoin Accounting and Tax: What Businesses Need to Know in 2026

bcTanji

Stablecoin Bridging Risks: What Cross-Chain Transfers Actually Cost in Trust and Security

bcSatoru

Bitcoin Inheritance Planning: How to Pass Crypto to Heirs Without Losing Self-Custody

bcTanji

Hemi Network: How Logic-Driven Finality Works on Bitcoin's Newest $1B L2

bcNeutron

The Stablecoin Yield Debate: Can Third Parties Offer Rewards Under the GENIUS Act?

bcTanji

Bitcoin Mining's Energy Mix in 2026: Renewables, Stranded Gas, and Grid Balancing

bcMao

Liquid Network Deep Dive: How Blockstream's Federated Sidechain Works

bcSatoru

Bitcoin Vaults: How Time-Locked Recovery Protects Against Theft

bcMao

ISO 20022 and Crypto: How the New Messaging Standard Bridges Traditional and Digital Payment Rails

bcNeutron

CBDCs vs Stablecoins: Who Wins the Digital Dollar Race?

bcSatoru

Harvest Now, Decrypt Later: Why Nation-States Are Already Collecting Bitcoin Transactions

bcSatoru

Stablecoins in Emerging Markets: From Necessity Adoption to Financial Infrastructure

bcTanji

State of the Lightning Network in 2026: Growth Metrics, Pain Points, and What's Changed

bcNeutron

Bitcoin Privacy in 2026: Silent Payments, Payjoin, and the Surveillance Arms Race

bcMao

Stablecoin Payments for Merchants: Costs, Integration, and the 2026 Adoption Wave

bcTanji

Bitcoin Restaking Explained: How Babylon and Lombard Dominate BTCFi

bcMao

Chaumian Ecash on Bitcoin: Privacy, Scalability, and the Cashu Protocol

bcNeutron

TradFi Meets DeFi: How JPMorgan, Citi, and Banks Are Going On-Chain

bcNeutron

OP_CAT and the Great Covenant Debate: Bitcoin's Most Contested Upgrade Since Taproot

bcSatoru

Asia's Stablecoin Strategy: How Singapore, Japan, and Hong Kong Are Building Dollar Alternatives

bcTanji

Is Bitcoin's Four-Year Cycle Dead? Why 2026 May Break the Pattern

bcMao

Mastercard and Visa Building Crypto Rails: What Card Network Integration Means for Bitcoin Payments

bcTanji

Statechains Explained: Off-Chain Bitcoin Transfers Without Payment Channels

bcSatoru

BTCFi in 2026: Why Bitcoin DeFi TVL Shrank 74% and What Comes Next

bcMao

The Business Impact of Instant Settlement: Cash Flow, Risk, and Working Capital

bcNeutron

How Stablecoins Move Treasury Markets: The $300B Demand Shock

bcNeutron

Real-World Asset Tokenization: Can Bitcoin Compete in the $30B+ RWA Market?

bcTanji

Stablecoin Systemic Risk: What IMF Research Reveals About Run Dynamics and Fire Sales

bcSatoru

Subscription Billing Infrastructure: Recurring Payments, Dunning, and Revenue Recovery

bcMao

Bitcoin ETFs and Institutional Adoption: How $100B in AUM Changed Market Structure

bcNeutron

Fraud in Digital Payments: Attack Vectors, Prevention, and the Chargeback Problem

bcTanji

Open Banking in 2026: PSD2, FDX, and the Global Data Sharing Revolution

bcTanji

Account-to-Account Payments: The Open Banking Alternative to Cards

bcSatoru

Creator Economy Payments: How Platforms Pay Creators and Why It's Broken

bcSatoru

The GENIUS Act Explained: How US Stablecoin Law Reshapes Digital Payments

bcMao

The API Economy in Payments: How Modern Payment Infrastructure is Built

bcSatoru

Marketplace Payments: How Platforms Handle Money Between Buyers and Sellers

bcNeutron

Post-Quantum Cryptography and Bitcoin: How the Quantum Threat Is Reshaping Protocol Security

bcTanji

Global Dollar Demand: Why the World Wants Digital Dollars

bcTanji

Stripe's Stablecoin Bet: What the Bridge Acquisition Means for Payments

bcNeutron

Money Movement Infrastructure: ACH, SWIFT, SEPA, and How Money Actually Moves

bcNeutron

Modern Payroll Infrastructure: From Batch ACH to Real-Time Earned Wage Access

bcTanji

Stablecoin Regulation Worldwide: A Country-by-Country Guide

bcMao

Buy Now Pay Later Economics: How BNPL Actually Works

bcSatoru

The Digital Wallet Wars: Apple Pay, Google Pay, and What Comes Next

bcMao

The Stablecoin Yield Landscape: Where the Returns Come From

bcMao

Lightning Mobile Wallets: Architecture and Implementation Patterns

bcTanji

Programmable Money: Conditional Payments, Escrow, and Smart Transfers

bcTanji

Stablecoin Remittances: Which Corridors Are Actually Working

bcSatoru

Lightning Loop: Complete Guide to Submarine Swaps

bcSatoru

The True Cost of Accepting Payments: A Merchant's Breakdown

bcMao

Neobank Business Models: How Challenger Banks Actually Make Money

bcNeutron

Lightning Network Scalability: Theoretical Limits and Practical Constraints

bcNeutron

Payment Orchestration: How Modern Platforms Route Payments Intelligently

bcSatoru

Tokenized Deposits vs Stablecoins: Two Visions for Digital Money

bcTanji

Crypto Debit Cards: How They Work, Who Issues Them, and the Economics

bcMao

Lightning Invoices: BOLT 11, BOLT 12, and Beyond

bcMao

Stablecoin Treasury Management: How Companies Hold and Move Digital Dollars

bcNeutron

Cross-Border B2B Payments: Why They're Still Broken and Who's Fixing Them

bcTanji

Lightning Network Privacy: What's Public, What's Hidden

bcTanji

Embedded Finance and BaaS: When Every Company Becomes a Bank

bcNeutron

Lightning Channel Management: Opening, Balancing, and Closing Channels

bcSatoru

Stablecoin Rails vs Traditional Payment Rails: A Cost and Speed Comparison

bcSatoru

Embedded Bitcoin Wallets: Non-Custodial Wallets Inside Apps

bcNeutron

Real-Time Payments: FedNow, UPI, PIX, and the Global Instant Payments Race

bcMao

Bitcoin in Gaming: Integration Patterns and Economic Design

bcMao

Bitcoin for Cross-Border Remittances: Real-World Economics

bcMao

Crypto On/Off Ramp Market: The Infrastructure Powering Fiat-to-Crypto

bcTanji

Lightning Network Routing: Pathfinding, Fees, and Optimization

bcNeutron

Bitcoin-Backed Stablecoins: Using BTC as Collateral

bcSatoru

Bitcoin Micropayments: Use Cases Finally Made Practical

bcTanji

Building a Bitcoin Payment App in 2026: Technology Stack Guide

bcTanji

Bitcoin Payroll and Streaming Payments: Real-Time Compensation

bcSatoru

Silent Payments: Stealth Addresses for Bitcoin

bcNeutron

Stablecoin Peg Mechanisms: How Different Stablecoins Maintain $1

bcNeutron

Fedimint: Federated Ecash Mints on Bitcoin

bcMao

Instant Bitcoin Deposits: How Exchanges Handle Lightning and Layer 2

bcMao

Synthetic Dollars on Bitcoin: Delta-Neutral Stablecoins

bcMao

RGB Protocol: Smart Contracts and Assets on Bitcoin

bcTanji

Yield-Bearing Stablecoins: How They Work and Their Risks

bcTanji

Bitcoin Address Types: From Legacy P2PKH to Taproot

bcTanji

Bitcoin Halving Economics: Supply Schedule and Market Impact

bcMao

Bitcoin Scaling in 2026: The Complete Layer 2 Landscape

bcNeutron

Card Network Economics: How Visa and Mastercard Actually Make Money

bcSatoru

Bitcoin Custody Solutions: From Personal to Institutional

bcSatoru

Bitcoin On/Off Ramps: Converting Between Fiat and Bitcoin

bcMao

Bitcoin Transaction Lifecycle: From Creation to Confirmation

bcSatoru

Accepting Bitcoin Payments: A Merchant's Technical Guide

bcTanji

Bitcoin Wallet SDKs Compared: BDK, LDK, Spark SDK, and More

bcSatoru

Self-Custodial vs Custodial Wallets: The Tradeoffs Explained

bcNeutron

Dollar-Denominated Bitcoin Payments: Why They Matter

bcNeutron

Stablecoin Regulation: MiCA, US Frameworks, and Global Standards

bcSatoru

Stablecoins on Bitcoin: The Complete 2026 Landscape

bcMao

Bitcoin Light Clients: SPV, Neutrino, and Compact Block Filters

bcTanji

Bitcoin Node Implementations: Core, btcd, libbitcoin Compared

bcNeutron

Lightning Watchtowers: Protecting Channels While You Sleep

bcSatoru

Bitcoin Mining Economics in 2026: Post-Halving Reality

bcMao

Miniscript: Composable and Analyzable Bitcoin Scripts

bcTanji

PayJoin: Breaking Transaction Analysis with Collaborative Transactions

bcSatoru

Bitcoin Script: Understanding Bitcoin's Programming Language

bcNeutron

BOLT 12 Offers: Static Payment Codes for Lightning

bcMao

Channel Factories: Nested Channels for Lightning Scalability

bcSatoru

Bitcoin Layer 2 Comparison: Lightning, Spark, Liquid, and More

bcNeutron

Lightning Service Providers: How LSPs Enable Mobile Lightning

bcSatoru

Onion Routing in Lightning: How Payment Privacy Works

bcTanji

Bitcoin Covenants: Restricting How Bitcoin Can Be Spent

bcSatoru

FROST Threshold Signatures: Distributed Key Generation for Bitcoin

bcTanji

MuSig2: Aggregated Signatures for Bitcoin Multisig

bcMao

Ark Protocol: Shared UTXOs and Virtual Channels for Bitcoin

bcNeutron

Bitcoin Timelocks: CLTV, CSV, and Time-Based Scripting

bcNeutron

Discreet Log Contracts: Bitcoin-Native Derivatives and Oracles

bcMao

PTLCs: Point Time Locked Contracts and Lightning's Privacy Future

bcSatoru

Splicing: Resizing Lightning Channels Without Closing

bcTanji

Submarine Swaps: Bridging On-Chain and Lightning Bitcoin

bcMao

Bitcoin Fee Market: How Transaction Fees Actually Work

bcMao

Payment Channels: From Concept to Lightning Network Implementation

bcSatoru

UTXO vs Account Model: Bitcoin's Transaction Architecture Explained

bcTanji

Taproot and Schnorr Signatures: Bitcoin's Privacy Upgrade

bcMao

Lightning Network Liquidity: Inbound, Outbound, and Channel Balance

bcSatoru

Bitcoin Multisig Wallets: How Multi-Signature Security Works

bcNeutron

USDB: The Stablecoin That Pays You Bitcoin Daily

bcTanji

Zero-Conf Bitcoin: The Complete Guide to Unconfirmed Transactions

bcSatoru

What is Spark? A Bitcoin Layer 2 Built on Statechains

bcNeutron