Python Blockchain Integrity Simulation Research (GERMANY ONLY)

Python Research Developer – Blockchain Transaction Integrity (GERMANY ONLY)

Project Type: Fixed Price
Budget: €200
Project Period: 15–31 December 2026
Location: Germany only – registered businesses or self-employed professionals
Scope: Initial experimental phase (EXP-00) only

Project Description

We are seeking a Germany-based Python developer or technical researcher to undertake EXP-00, the initial experimental phase of a blockchain transaction integrity research project.

The research investigates the reliability of fraud-risk verification before blockchain transaction finality, particularly where transaction evidence may arrive asynchronously or after a fixed decision deadline.

The commissioning company will provide the research objectives, initial hypotheses and experimental specifications.

This assignment covers EXP-00 only. Subsequent experiments are excluded and will be undertaken separately.

Scope of Work – EXP-00 Only

The contractor will:

1. Develop a lightweight Python simulation framework for synthetic blockchain transactions and pre-finality fraud-risk verification.
2. Generate structured JSON datasets containing synthetic transactions, timestamped evidence events, evidence arrival times and fixed decision deadlines.
3. Implement the initial baseline scenarios specified by the project lead.
4. Develop basic automated tests to verify the simulation framework and reproducibility of results.
5. Execute the baseline experiments and preserve actual execution logs, including errors, failed tests and unexpected outcomes.
6. Prepare a short technical report documenting the implementation, observations, limitations and initial findings.

The assignment does not require a production blockchain application, live blockchain integration or implementation of the later experimental phases.

Required Deliverables

- Executable Python source files
- Synthetic blockchain transaction and evidence datasets in JSON
- Baseline experimental configurations and results
- Automated test scripts
- Original execution logs with actual timestamps
- README containing reproduction instructions
- Brief EXP-00 technical findings report

All results must be reproducible. Both successful and unsuccessful outcomes must be preserved and reported accurately.

Required Skills

- Python 3
- JSON data processing
- Automated testing (pytest preferred)
- Timestamped and event-driven data processing
- Basic knowledge of blockchain transactions and fraud-risk verification
- Familiarity with asynchronous systems or simulation frameworks is advantageous

Mandatory Contractor Eligibility

Applicants must be genuinely established and carrying on business in Germany.

Applicants must:

- Be based in Germany and perform the contracted work in Germany.
- Operate through a registered German company or as a self-employed professional (*Freiberufler* or *Einzelunternehmer*).
- Provide their registered business name or full legal business name.
- Provide appropriate German business registration or tax identification details, where applicable.
- Be able to issue a valid invoice in EUR to a German UG by 31 December 2026.
- Confirm availability during 15–31 December 2026.

Freelancers without a Handelsregister number may apply if legitimately self-employed in Germany.

Sensitive tax identification details may be verified privately after shortlisting rather than disclosed publicly.

Application Requirements

Please provide:

1. Your experience with Python, JSON and automated testing.
2. Any relevant blockchain, simulation or asynchronous data-processing experience.
3. Confirmation that you are established in Germany and will perform the work there.
4. Your German business status and the registration or tax documentation you can provide.
5. Your availability during 15–31 December 2026.

Important Scope Clarification

This is a small, fixed-price research assignment covering **EXP-00 only**, intended to establish the initial simulation baseline and reproducible experimental evidence.

There is no requirement to complete the entire blockchain integrity research programme, undertake extensive optimisation or develop production-ready software.

Any subsequent experimental phases would require separate agreement and milestones. Future opportunities may be available in 2027.