Litecoin.watch editorial guides, 22 October 2026. Scope: fees, address formats, merged mining, pool accounting and LTC yield. AI-assisted editorial/source checks and original arithmetic; no independent audit. Evidence types: fee-worked-cases.csv copies four selected signed-size rows from the archived Core 0.21.5.8 isolated regtest study at: https://litecoin.watch/uploads/research/practical-20260930/batching/batch-results.json Original collection time: 29 September 2026 UTC (30 September Europe/Warsaw). Those fees used experimental 10 litoshi/vB. Candidates were not broadcast/mined; setup funding costs excluded. Additional CSV rows are hypothetical arithmetic. No fresh transaction experiment or live fee recommendation is claimed. Address guide links to the ORIGINAL 36 recorded RPC observations: https://litecoin.watch/uploads/research/beginner-address-orders-20261003-v1/address-checks.csv Disconnected mainnet-mode/regtest parsers; synthetic fixtures; DO NOT SEND FUNDS. The new address checklist is not a new decoder, transfer or recovery test. auxpow-target-cases.csv, pool-reward-scenarios.csv and yield-worked-cases.csv contain declared synthetic models, not network observations or provider quotes. Pool PPLNS outcomes assume constant eligible shares, accepted fixed-reward blocks, stationary work/difficulty and no window transitions. They omit actual pool implementation details, transaction fees, orphans and auxiliary-chain covariance. Prices, rates and power draw are assumptions, not equipment or yield offers. All fees and costs are applied once. Exact Decimal arithmetic and approximate Poisson block-count calculations are reproduced by the offline standard-library script. Save mining-and-yield-calculations.py.txt as calculations.py and run: python calculations.py The script has no wallet, network, transfer, mining-job or file-writing capability. Assertions check arithmetic, not provider solvency or future performance. Blank worksheets and the CSV ledger are for private local use. They contain no credential fields. Separate per-coin net credits, debited payouts, actual wallet receipts, deductions and outstanding balances; do not count transfers twice. No current provider ranking or universal withdrawal threshold is maintained. SHA256SUMS.txt identifies all other files in this download folder. Original worksheets/code MIT; original calculated exports CC0-1.0. Third-party sources retain their rights. Corrections: https://litecoin.watch/corrections/