anders94/blockchain-demo
A web-based demonstration of blockchain concepts. observed · 2026-08-28
Health v2 · maintenance only
75/100
- Activity 94
- Release rhythm 35
- Longevity 100
Flags: no_releases
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 3589
- days_rel: n/a
- days_push: 36
- n_releases_24m: 0
Adoption not part of the score
5662 stars · 2777 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
An interactive Node.js web application that visually demonstrates core blockchain concepts such as hashing, block mining, nonces, and immutable ledgers directly in the browser. Users can edit block data, adjust proof-of-work difficulty, mine blocks, and watch how tampering invalidates the rest of the chain.
Use cases
- learn how blockchain works interactively
- visualize how block hashing and mining produce valid blocks
- demonstrate why changing one block breaks the whole chain
- teach a blockchain 101 class with a hands-on demo
- experiment with proof-of-work difficulty settings
- show students how immutable ledgers are built from hashes
When to choose
- You want a browser-based, visual way to explain blockchain fundamentals like hashing, mining, and immutability
- You are teaching or presenting an introductory blockchain session and need an interactive demo you can run locally or via Docker
When to avoid
- You need a real blockchain platform, SDK, or node to build or run production blockchain software
- You want actual cryptocurrency transactions, consensus, or peer-to-peer networking rather than a simplified simulation
Facets
application · maturity stable
simulation gui blockchain education self-hosted blockchain interactive-demo education hashing proof-of-work mining distributed-ledger bitcoin visual-explanation teaching-tool cryptocurrency nodejs web-server
1 source
- readme: https://github.com/anders94/blockchain-demo · fetched 2026-08-28 · aa66bfbb1e6e
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| anders94/blockchain-demo | main | 75 |
For agents
markdown · JSON · MCP: product_card(name="anders94/blockchain-demo")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem