Research | Spark

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