PlainKit / EvidentChainhttps://evidentchain.tech/learn/Practical developer guides and source-based reading notes.Why does valid-looking JSON fail to parse?https://evidentchain.tech/learn/json-errors/https://evidentchain.tech/learn/json-errors/Reproduce trailing commas, duplicate keys, and numeric precision traps.Where did the leading zeros in my CSV go?https://evidentchain.tech/learn/csv-leading-zeros/https://evidentchain.tech/learn/csv-leading-zeros/Preserve identifiers, handle quoting, and understand conversion losses.Four checks before sharing a loghttps://evidentchain.tech/learn/share-logs-safely/https://evidentchain.tech/learn/share-logs-safely/Check credentials, personal details, internal paths, and surrounding context.How to verify a downloaded file with SHA-256https://evidentchain.tech/learn/verify-file-sha256/https://evidentchain.tech/learn/verify-file-sha256/Calculate a digest, check its source, and understand its limits.Read EVM calldata, starting with transferhttps://evidentchain.tech/learn/read-evm-calldata/https://evidentchain.tech/learn/read-evm-calldata/Match selectors, ABIs, and raw amounts without mistaking decoding for safety.What npm provenance does—and does not—provehttps://evidentchain.tech/updates/npm-provenance/https://evidentchain.tech/updates/npm-provenance/A verifiable source link helps; it does not replace code review.ML-DSA is standardized. What must a blockchain still validate?https://evidentchain.tech/updates/post-quantum-signatures/https://evidentchain.tech/updates/post-quantum-signatures/An algorithm standard is only one part of protocol engineering.Should logs be redacted at capture or before sharing?https://evidentchain.tech/updates/logging-policy/https://evidentchain.tech/updates/logging-policy/Minimize collection, restrict access, and review before sharing.