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Crypto compliance, made simple

Wallet risk, sanctions, scams and staying safe on-chain — explained simply by the team building Constatum.

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Compliance

Frozen USDT: How Issuer Blacklists Actually Work

Tether froze $131M in one day. How stablecoin blacklists work, why clean wallets get caught, and what to check before you accept.

5 min read
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Security

Address Poisoning: The $50M Copy-Paste Scam

How address-poisoning scammers slip lookalike wallet addresses into your history — and the 10-second habit that stops you sending crypto to the wrong one.

4 min read
A row of abstract blockchain blocks on a dark background with one block glowing orange under a scanning line, suggesting a flagged wallet address.
Guides

Is This Crypto Address Safe? How to Check

A practical guide to spotting sanctioned, mixer-linked, and scam crypto wallets before you send or accept a payment, using free tools and real 2024-2026 cases.

5 min read
A single orange wallet node on a dark grid, with one incoming transaction line traced back to a distant cluster of red-tinged nodes.
Compliance

Crypto Sanctions in 2026: What They Mean for You

OFAC and EU crypto sanctions hit ordinary users too. Here is your real exposure in 2026 and the simple habits that keep your wallet clean.

6 min read
A glowing orange coin frozen inside a block of dark ice against a black background.
Guides

Getting Paid in Crypto Without the Frozen-Funds Trap

How freelancers and small businesses can accept USDC and USDT without ending up with tainted or frozen stablecoins, plus a simple payer-screening workflow.

5 min read