Klarc Blog https://klarciel.nethttps://klarciel.net/ Mon, 20 Apr 2026 00:19:53 +0900 Mon, 20 Apr 2026 00:19:53 +0900 Jekyll v3.10.0 Sun, 12 Apr 2026 18:12:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/architecture/architecture-scalable-streaming-platform/ https://klarciel.nethttps://klarciel.net/wiki/architecture/architecture-scalable-streaming-platform/ architecture systemdesign go network Mon, 23 Mar 2026 23:30:00 +0900 https://klarciel.nethttps://klarciel.net/wiki/go/go-fundamental/ https://klarciel.nethttps://klarciel.net/wiki/go/go-fundamental/ go goroutine concurrency channel csp gc hexagonal solid Sun, 01 Mar 2026 12:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-dpki/ https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-dpki/ blockchain security cryptography architecture Sat, 28 Feb 2026 15:00:00 +0900 https://klarciel.nethttps://klarciel.net/wiki/grpc/grpc-fundamentals/ 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https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-bitcoin-address/ blockchain bitcoin Sat, 17 Jan 2026 19:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-mechanism/ https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-mechanism/ blockchain bitcoin 51% Attack Fri, 16 Jan 2026 18:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-double-spending-problem/ https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-double-spending-problem/ blockchain bitcoin Proof Of Work, Hash Puzzle Thu, 15 Jan 2026 12:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-proof-of-work/ https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-proof-of-work/ blockchain bitcoin Wed, 14 Jan 2026 12:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-cypherpunk/ https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-cypherpunk/ blockchain bitcoin Tue, 13 Jan 2026 20:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/network/network-latency-bandwidth/ https://klarciel.nethttps://klarciel.net/wiki/network/network-latency-bandwidth/ network Bitcoin Address, Genesis Block Mon, 12 Jan 2026 18:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-bitnode-crypto-hash/ https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-bitnode-crypto-hash/ blockchain bitcoin tdd Sun, 11 Jan 2026 18:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-bitnode-encoding-varint/ https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-bitnode-encoding-varint/ blockchain bitcoin tdd Sat, 10 Jan 2026 18:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-bitnode-encoding-endians/ https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-bitnode-encoding-endians/ blockchain bitcoin tdd Fri, 09 Jan 2026 18:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-bitnode/ https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-bitnode/ blockchain bitcoin tdd broadcasting CompactSize Thu, 08 Jan 2026 18:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-bitcoin-varint/ https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-bitcoin-varint/ blockchain bitcoin distributed Proof of Work, Distributed Consensus Problem Wed, 07 Jan 2026 18:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-byzantine/ https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-byzantine/ blockchain bitcoin distributed Unspent transaction output Tue, 06 Jan 2026 19:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-uxto/ https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-uxto/ blockchain bitcoin Mon, 05 Jan 2026 18:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-bitcoin-wallet/ https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-bitcoin-wallet/ blockchain bitcoin Bech32, Remove Transaction Malleability Mon, 05 Jan 2026 12:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-segwit-locking-script/ https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-segwit-locking-script/ blockchain bitcoin 000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f Sun, 04 Jan 2026 19:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-genesis-block/ https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-genesis-block/ blockchain bitcoin Sun, 04 Jan 2026 18:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-base58/ https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-base58/ blockchain bitcoin Sun, 04 Jan 2026 12:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-checksum/ https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-checksum/ blockchain bitcoin Block Sat, 03 Jan 2026 12:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-merkle-tree/ https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-merkle-tree/ blockchain bitcoin datastructures Fri, 02 Jan 2026 14:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-bitcoin-block-tx/ https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-bitcoin-block-tx/ blockchain bitcoin network Little Endian, Big Endian Fri, 02 Jan 2026 12:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-endian/ https://klarciel.nethttps://klarciel.net/wiki/blockchain/blockchain-endian/ blockchain bitcoin Thu, 01 Jan 2026 20:55:09 +0900 https://klarciel.nethttps://klarciel.net/wiki/book/ https://klarciel.nethttps://klarciel.net/wiki/book/ book Thu, 01 Jan 2026 14:55:09 +0900 https://klarciel.nethttps://klarciel.net/wiki/blockchain/ https://klarciel.nethttps://klarciel.net/wiki/blockchain/ blockchain bitcoin Thu, 25 Dec 2025 21:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/magazine/magazine-tradeoff/ https://klarciel.nethttps://klarciel.net/wiki/magazine/magazine-tradeoff/ magazine tradeoff software architecture eth0, veth Thu, 18 Dec 2025 18:12:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/network/network-eth0/ https://klarciel.nethttps://klarciel.net/wiki/network/network-eth0/ network docker linux Web Real-Time Communication Mon, 15 Dec 2025 20:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/network/network-webrtc/ https://klarciel.nethttps://klarciel.net/wiki/network/network-webrtc/ network sdv sdp udp nat webrtc dtls Sun, 14 Dec 2025 20:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/network/network-socket-protocol/ https://klarciel.nethttps://klarciel.net/wiki/network/network-socket-protocol/ network protocol tcp sdv architecture websocket grpc Virtual Private Network Mon, 08 Dec 2025 20:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/network/network-vpn/ https://klarciel.nethttps://klarciel.net/wiki/network/network-vpn/ network sdv vpn tunneling Network Address Translation Fri, 05 Dec 2025 20:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/network/network-nat/ https://klarciel.nethttps://klarciel.net/wiki/network/network-nat/ network nat sdv Sun, 07 Sep 2025 11:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/magazine/magazine-engineering-field-notes/ https://klarciel.nethttps://klarciel.net/wiki/magazine/magazine-engineering-field-notes/ magazine Analysis Workloads, Relationship Modeling, Schema Design Pattern Mon, 01 Sep 2025 18:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/database/database-modeling/ https://klarciel.nethttps://klarciel.net/wiki/database/database-modeling/ database mongodb designpattern Two Phase Commit, Try-Confirm/Cancel, Event Sourcing Sun, 31 Aug 2025 14:12:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/architecture/architecture-distributed-transaction/ https://klarciel.nethttps://klarciel.net/wiki/architecture/architecture-distributed-transaction/ architecture distributed eventsourcing msa cqrs systemdesign tradeoff Sat, 30 Aug 2025 12:12:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/architecture/architecture-software-fundamental/ https://klarciel.nethttps://klarciel.net/wiki/architecture/architecture-software-fundamental/ architecture software abstraction tradeoff Sun, 17 Aug 2025 10:15:37 +0900 https://klarciel.nethttps://klarciel.net/wiki/sdv/sdv-digital-twin/ https://klarciel.nethttps://klarciel.net/wiki/sdv/sdv-digital-twin/ sdv Thu, 14 Aug 2025 18:12:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/sdv/sdv-vehicle-to-grid/ https://klarciel.nethttps://klarciel.net/wiki/sdv/sdv-vehicle-to-grid/ sdv Architecting Digital Highways for Data Packets Tue, 12 Aug 2025 18:12:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/network/network-design-principle/ https://klarciel.nethttps://klarciel.net/wiki/network/network-design-principle/ network architecture abstraction Sun, 10 Aug 2025 10:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/book/tdd-knight-legacy-code/ https://klarciel.nethttps://klarciel.net/wiki/book/tdd-knight-legacy-code/ tdd test Sat, 09 Aug 2025 10:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/book/tdd-knight-refactoring/ https://klarciel.nethttps://klarciel.net/wiki/book/tdd-knight-refactoring/ tdd test Fri, 08 Aug 2025 10:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/book/tdd-knight-complex-business-logic-improved-tdd/ https://klarciel.nethttps://klarciel.net/wiki/book/tdd-knight-complex-business-logic-improved-tdd/ tdd test tradeoff Thu, 07 Aug 2025 10:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/book/tdd-knight-oop-and-tdd/ https://klarciel.nethttps://klarciel.net/wiki/book/tdd-knight-oop-and-tdd/ tdd test Wed, 06 Aug 2025 10:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/book/tdd-knight-test-design-principle/ https://klarciel.nethttps://klarciel.net/wiki/book/tdd-knight-test-design-principle/ tdd test Tue, 05 Aug 2025 10:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/book/tdd-knight-first-tdd-experience/ https://klarciel.nethttps://klarciel.net/wiki/book/tdd-knight-first-tdd-experience/ tdd test Mon, 04 Aug 2025 10:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/book/tdd-knight-what-is-tdd/ https://klarciel.nethttps://klarciel.net/wiki/book/tdd-knight-what-is-tdd/ tdd test Sat, 02 Aug 2025 15:12:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/architecture/architecture-backward-compatibility/ https://klarciel.nethttps://klarciel.net/wiki/architecture/architecture-backward-compatibility/ architecture Fri, 01 Aug 2025 20:55:09 +0900 https://klarciel.nethttps://klarciel.net/wiki/tddknight/ https://klarciel.nethttps://klarciel.net/wiki/tddknight/ tdd Sat, 12 Jul 2025 18:12:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/sdv/sdv-history/ https://klarciel.nethttps://klarciel.net/wiki/sdv/sdv-history/ sdv Tue, 08 Jul 2025 12:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/test/test-software-regression/ https://klarciel.nethttps://klarciel.net/wiki/test/test-software-regression/ test Sat, 28 Jun 2025 18:12:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/agile/agile-component-team/ https://klarciel.nethttps://klarciel.net/wiki/agile/agile-component-team/ agile Wed, 25 Jun 2025 15:12:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/altorithm/algorithm-randomized-expotential-backoff/ https://klarciel.nethttps://klarciel.net/wiki/altorithm/algorithm-randomized-expotential-backoff/ algorithm jitter distributed Sun, 22 Jun 2025 15:12:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/architecture/architecture-window/ https://klarciel.nethttps://klarciel.net/wiki/architecture/architecture-window/ architecture eventdriven Sat, 14 Jun 2025 18:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/database/database-vector-embedding/ https://klarciel.nethttps://klarciel.net/wiki/database/database-vector-embedding/ database vector Thu, 12 Jun 2025 21:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/spring/spring-oop/ https://klarciel.nethttps://klarciel.net/wiki/spring/spring-oop/ spring oop Producer Delivery, Message Delivery Guarantees Mon, 09 Jun 2025 12:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/kafka/kafka-exactly-once/ https://klarciel.nethttps://klarciel.net/wiki/kafka/kafka-exactly-once/ kafka architecture eventdriven Sun, 08 Jun 2025 12:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/datastructures/datastructures-trie/ https://klarciel.nethttps://klarciel.net/wiki/datastructures/datastructures-trie/ datastructures trie Wed, 04 Jun 2025 20:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/security/security-signed-certificates/ https://klarciel.nethttps://klarciel.net/wiki/security/security-signed-certificates/ security sdv network tesla crypto Sun, 01 Jun 2025 12:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/magazine/magazine-nature/ https://klarciel.nethttps://klarciel.net/wiki/magazine/magazine-nature/ magazine software tradeoff Sat, 31 May 2025 12:12:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/systemdesign/systemdesign-coupon/ https://klarciel.nethttps://klarciel.net/wiki/systemdesign/systemdesign-coupon/ systemdesign stream Tue, 27 May 2025 08:12:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/architecture/architecture-stream/ https://klarciel.nethttps://klarciel.net/wiki/architecture/architecture-stream/ architecture stream tradeoff Robustness Principle Thu, 22 May 2025 12:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/principle/principle-postels-law/ https://klarciel.nethttps://klarciel.net/wiki/principle/principle-postels-law/ principle Tue, 20 May 2025 08:12:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/architecture/architecture-event/ https://klarciel.nethttps://klarciel.net/wiki/architecture/architecture-event/ architecture Mon, 19 May 2025 15:12:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/ddd/ddd-cqrs/ https://klarciel.nethttps://klarciel.net/wiki/ddd/ddd-cqrs/ ddd cqrs Sun, 18 May 2025 19:12:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/architecture/architecture-discovery/ https://klarciel.nethttps://klarciel.net/wiki/architecture/architecture-discovery/ architecture cloudnative How HTTP/2's Binary Foundation Transformed Web Communication Efficiency Sat, 10 May 2025 14:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/network/network-binary-based-protocol/ https://klarciel.nethttps://klarciel.net/wiki/network/network-binary-based-protocol/ network http protocol binary Fri, 02 May 2025 18:12:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/architecture/architecture-zero-trust/ https://klarciel.nethttps://klarciel.net/wiki/architecture/architecture-zero-trust/ architecture sdv security Mon, 14 Apr 2025 18:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/designpattern/designpattern-chain-of-responsibility/ https://klarciel.nethttps://klarciel.net/wiki/designpattern/designpattern-chain-of-responsibility/ designpattern Sun, 13 Apr 2025 13:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/designpattern/designpattern-observer/ https://klarciel.nethttps://klarciel.net/wiki/designpattern/designpattern-observer/ designpattern reactive Sat, 12 Apr 2025 20:55:09 +0900 https://klarciel.nethttps://klarciel.net/wiki/security/ https://klarciel.nethttps://klarciel.net/wiki/security/ security Event Streaming Platform Sat, 12 Apr 2025 18:12:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/systemdesign/systemdesign-distributed-messaging-queue/ https://klarciel.nethttps://klarciel.net/wiki/systemdesign/systemdesign-distributed-messaging-queue/ systemdesign architecture kafka pulsar Thu, 10 Apr 2025 10:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/auth/auth-key-exchange/ https://klarciel.nethttps://klarciel.net/wiki/auth/auth-key-exchange/ auth crypto Mon, 07 Apr 2025 17:14:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/designpattern/designpattern-flyweight/ https://klarciel.nethttps://klarciel.net/wiki/designpattern/designpattern-flyweight/ designpattern Sat, 05 Apr 2025 13:15:24 +0900 https://klarciel.nethttps://klarciel.net/wiki/crypto/crypto-core/ https://klarciel.nethttps://klarciel.net/wiki/crypto/crypto-core/ crypto