"Not your keys, not your coins" - but key management is a nightmare. Hardware wallets fail. Seed phrases get lost. Every self-custody solution trades exchange risk for operational risk.
Hypothesis HY10007
"Not your keys, not your coins" - but key management is a nightmare. Hardware wallets fail. Seed phrases get lost. Every self-custody solution trades exchange risk for operational risk.
Trading hypothesis
What traders get wrong
False assumption:
"Self-custody is always safer. Move everything off exchanges."
Truth:
Custody is a trilemma - you can't have security, accessibility, and simplicity together.
Problem for trader:
Exchange custody has counterparty risk (FTX). Self-custody has operational risk. 20% of Bitcoin is estimated lost forever.
Key takeaways
What you should consider as a trader
- There is no perfect custody - Every option has failure modes.
- Exchange risk is real - FTX, Celsius, Mt. Gox prove exchanges fail.
- Self-custody risk is also real - 20% of Bitcoin is estimated lost forever.
- Operational security is hard - Seed phrase management requires expertise.
- Diversification applies to custody - Don't put all funds in one solution.
Data you need
Assess custody risks
Data points:
- Exchange solvency indicators
- Lost coin estimates
- Hack frequency
- Smart contract wallet risks
Comparison of data sources
Where to get crucial data feeds
| Source | Availability | Notes |
| Exchange PoR Reports | ⚠️ Partial | Self-reported, snapshot only. |
| Chainalysis | ⚠️ Partial | Lost coin analysis. |
| **Madjik** | ✅ Yes | 🚀 Get API Access Now |
Available metrics for this hypothesis:
| Metric | Description | Change dimensions | Time dimensions | How to use | API spec |
| `ME10006` | Exchange health | • Absolute Value (value) • Relative Change (relchg) • Score 0-100 (score) | • Current (now) • Past 24 Hours (past24h) • Past 7 Days (past7d) | Example | API |
| `ME10007` | Security & custody | • Absolute Value (value) • Relative Change (relchg) • Score 0-100 (score) | • Current (now) • Past 30 Days (past30d) • All History (pastAll) | Example | API |
Clean data for AI, A2A, MCP, etc.
Science behind hypothesis
Research supports this hypothesis
Chainalysis estimates 20% of all Bitcoin is permanently lost due to key loss.
Bottom line
Custody risk is invisible until it isn't. Tracking exchange health indicators and custody solutions helps you diversify the risk you can't eliminate. Madjik monitors exchange solvency signals, withdrawal patterns, and custody arrangements so you can make informed decisions about where to hold assets.
Practical use
How to use this data in trading:
Combine these metrics for comprehensive analysis:
- ME10006 (Exchange Health): Monitor exchange solvency and withdrawal status to manage counterparty risk before problems emerge.
- ME10007 (Security & Custody): Screen DeFi protocols and bridges for security risks before depositing funds.
Detailed examples with Python code, AI agent integration (MCP/A2A), and risk analysis:
| `ME10006` | Exchange Health Trading Guide | Example → |
| `ME10007` | Security & Custody Trading Guide | Example → |
API Documentation: docs.madjik.io
For informational purposes only. Not financial, investment, tax, legal or other advice.