# dvf/blockchain

A simple Blockchain in Python

Repository: https://github.com/dvf/blockchain
Canonical: https://ross.abutalabs.com/products/blockchain
Language: C#
License: MIT
License Family: permissive
Topics: blockchain, cryptocurrency, bitcoin, python, flask
Last push: 2024-07-21T21:35:02+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 3265, "days_push": 773, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 8046, forks 2796 (observed 2026-08-28T04:10:12.219604+00:00)

## What it is
A simple educational blockchain implementation in Python (with a C# port) built with Flask, serving as companion code for a tutorial article and book on learning blockchains by building one. It is a demonstration project, not production blockchain software.

## Use cases
- learn how blockchains work by reading a small codebase
- run a toy blockchain node locally for study
- follow a blockchain tutorial with working example code
- understand proof-of-work and mining basics
- experiment with multiple blockchain nodes in Docker

## When to choose
- you want to learn blockchain fundamentals from minimal readable code
- you are following the author's tutorial or book
- you need a simple teaching example to extend or fork

## When to avoid
- you need a production or real cryptocurrency blockchain
- you require consensus, smart contracts, or real security guarantees
- you want an actively developed blockchain platform

## Facets
- artifact type: learning-resource
- maturity: maintenance
- function: blockchain, http-server
- domain: blockchain, education
- platform: python, cross-platform
- tags: educational, flask, tutorial-code, cryptocurrency, toy-implementation, docker

## Member repositories
- dvf/blockchain (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:12.219604+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:31:25.074296+00:00, confidence not recorded.
  - readme: https://github.com/dvf/blockchain (fetched 2026-08-28T04:10:12.219604+00:00, sha 9de548c76c8b)
- Data as of 2026-08-30T08:39:29.467469+00:00.