Litecoin.watch editorial batch - 22 October 2026.
Two new guides: difficulty retarget arithmetic; transparent inclusion proofs.
Five corrections: treasury-stock comparison, payment-asset competition,
inflation use cases, price-driver claims and Bitcoin-failure scenarios.
Codex-assisted source and offline-calculation review, not independent audit.

Scripts need Python 3 standard library. Save .py.txt as .py and run.
All three print JSON. No network, wallet, signing, broadcasting or file writes.
Results are exported by the editorial preparation pipeline.
retarget-calculations.py.txt uses pinned Core0.21.5.8 mainnet constants,
compact target and integer operations, four numeric source-test vectors,
seven synthetic span scenarios and three lookback boundaries.
Source: https://github.com/litecoin-project/litecoin/blob/v0.21.5.8/src/test/pow_tests.cpp
and pow.cpp, chainparams.cpp and arith_uint256.cpp in the same revision.
No compiled Core test suite or live chain replay was run. Source-test
labels are not independent measurements of historical block times.

merkle-exercise.py.txt builds invented leaf hashes and an unmined header.
Forty-five branches, forty-five changed-leaf mismatches, three invalid
branch requests and a duplicate-last ambiguity example are checked.
Its JSON branches are not serialized Core partial Merkle proofs.
No actual transaction, Scrypt proof, consensus block or chain validation.
No Core proof RPC or real invoice check was run.

market-models.py.txt contains chosen treasury, option, premium,
payment-denominator, inflation, ratio and paired-return examples.
No actual issuer valuation, price sample, causal ranking or forecast.
Worksheets are blank evidence inventories. Do not enter secrets.
Two original cover diagrams are illustrations, not observations.
Original code/worksheets/art: MIT. Calculated exports: CC0-1.0.
Third-party sources retain their rights. SHA256SUMS.txt covers other files.
Corrections: https://litecoin.watch/corrections/