Comprehensive exploration of Bitcoin's Unspent Transaction Output model, covering transaction structure, inputs/outputs, and script validation. Readers will learn how UTXO differs from account-based models and implement a simple UTXO tracker in Kotlin.
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Understanding Bitcoin's UTXO Model
Comprehensive exploration of Bitcoin's Unspent Transaction Output model, covering transaction structure, inputs/outputs, and script validation. Readers will learn how UTXO differs from account-based models and implement a simple UTXO tracker in Kotlin.
Read ArticleWhat You'll Learn
Master Bitcoin's UTXO accounting model by understanding how transactions consume inputs and create outputs, how the global UTXO set represents ledger state, and how this differs fundamentally from account-based blockchains. You'll implement a working UTXO tracker in Kotlin and gain the mental models needed to reason about Bitcoin's state machine architecture.
Architecture-first guide to creating a high-performance Bitcoin indexer that follows a full node, processes blocks, and exposes queryable APIs. Covers data sources, parsing pipeline, schema design, reorg handling, and performance considerations.
Deep dive into Bitcoin's scripting language, covering P2PKH, P2SH, SegWit, and Taproot scripts. Readers will learn to parse, validate, and create custom Bitcoin scripts with practical Kotlin implementations.
Practical guide to implementing efficient transaction broadcasting systems, covering mempool management, fee estimation, and network propagation. Includes real-world performance optimization techniques from production systems.
Detailed walkthrough of Bitcoin's consensus rules, including block header validation, proof-of-work verification, and transaction validation. Readers will build a complete block validator in Kotlin.
Exploration of Cardano's eUTXO model, covering datum, redeemers, and script contexts. Readers will understand how eUTXO enables smart contracts while maintaining UTXO benefits.
Comprehensive guide to Cardano's proof-of-stake consensus protocol, covering VRF, KES signatures, and slot leadership election. Includes practical implementation of core consensus components.
First in a series on implementing a Cardano node in pure Kotlin, focusing on P2P networking, peer discovery, and the Ouroboros mini-protocols (chain-sync, block-fetch, tx-submission).
Second part covering Cardano's ledger rules, including transaction validation, stake distribution, and reward calculation. Readers will implement complete ledger state transitions.
Third part focusing on implementing VRF, KES, and other cryptographic primitives required for Cardano consensus. Covers BLAKE2b, Ed25519, and BLS signatures.
Technical exploration of Plutus Core, Cardano's smart contract language, covering UPLC, script evaluation, and execution budgets. Includes examples of validating Plutus scripts from Kotlin.
Practical guide to implementing CIP-30 wallet connector specification, covering Nami, Eternl, and Flint wallet integrations. Includes TypeScript/React examples for dApp development.
Step-by-step guide to constructing valid Cardano transactions, covering input selection, change calculation, fee estimation, and metadata. Includes Kotlin library for transaction building.
Introduction to Cosmos SDK architecture, covering modules, keepers, and the ABCI interface. Readers will understand how Cosmos enables application-specific blockchains.
Deep dive into CometBFT's Tendermint consensus, covering voting rounds, validator sets, safety, liveness, and evidence-based performance tuning.
Practical guide to creating custom Cosmos SDK modules, covering state management, message handlers, and query services. Readers will build a complete module from scratch.
Comprehensive exploration of IBC protocol, covering light clients, connection handshakes, and packet relaying. Includes examples of cross-chain token transfers.
Comparative analysis of account-based and UTXO models, examining trade-offs in scalability, privacy, and smart contract capabilities. Draws from experience with both Bitcoin/Cardano and Cosmos.
In-depth comparison of Bitcoin's PoW, Cardano's Ouroboros, and Cosmos's Tendermint, covering security assumptions, finality, and performance characteristics.
Hands-on comparison of UTXO (Bitcoin/Cardano) and account-based (Cosmos/Ethereum) models, with code examples showing transaction construction, state management, and indexing strategies.
Comprehensive guide to indexing strategies across different blockchain architectures, covering real-time streaming, batch processing, and queryable data structures.
Practical guide to implementing wallet services supporting Bitcoin, Cardano, and Cosmos, covering key derivation (BIP32/BIP44), address generation, and transaction signing.
Exploration of bridge designs for moving assets between chains, covering lock-and-mint, liquidity pools, and validator sets. Includes security considerations and attack vectors.
Guide to designing efficient database schemas for blockchain data, covering normalization strategies, indexing patterns, and query optimization for Bitcoin, Cardano, and Cosmos.
Practical implementation of event-driven architecture for blockchain data, covering Kafka integration, stream processing, and building reactive applications with Spring WebFlux.