# On-chain Investigation

Follow the money. Make the evidence readable.

- Author: [Konstantinos Toulis](https://ktoulis.com/#about)
- Role: Business Technology & AI Solutions Architect
- Category: Data & decisions
- Project type: Investigation / field note
- Canonical page: https://ktoulis.com/work/onchain-investigation.html

## Overview

Participation in an on-chain fraud investigation, following transfers from an initial transaction into a network of addresses and probable service hubs.

## The business challenge

Reconstruct a value flow and make the reasoning inspectable without confusing wallet behaviour with proven identity.

## The connected solution

Group transactions by time, amount and counterpart; map the paths of value; distinguish observed transfers from hypotheses about services. Package the findings into a structured summary that other analysts can retrace against the public ledger.

## The workflow

1. Start with a transaction
2. Map the transfers
3. Review patterns & hypotheses
4. Structure the evidence

The workflow is an illustration. Project scope and limitations are described below.

## Built with / focus areas

- Blockchain explorers
- Public-ledger analysis
- Evidence mapping
- Structured reporting

## Focus

- Transaction analysis
- Evidence mapping
- Field note

## Scope and disclosure

The diagram uses synthetic nodes and flows. Service attribution requires corroboration. The accompanying article reflects participation in a case, without publishing identities, wallet records or a claimed recovery outcome.

## Explore further

- [Read Follow the Money](https://ktoulis.com/insights/follow-the-money.html)

## Contact

[Discuss a similar project by email](mailto:kt@ktoulis.com).

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