Methodology
What a seizure-warrant trace reveals about blockchain evidence
A case study of DOJ's September 2026 Hamas crypto seizures, showing how sworn warrant records layer blockchain paths with service-provider evidence.
Nick Kampe13 min read
Category
Methodology
9 articles
Methodology
One address, many actors: contract wallet attribution
Contract wallets and multisigs are not one-person accounts. Experts reconstruct owners, signers, modules, and relayers to attribute on-chain activity.
Nick Kampe12 min read
Methodology
Reproducible blockchain evidence beyond the explorer screenshot
Collecting blockchain evidence that another qualified analyst can reproduce: provenance fields, raw response hashes, query documentation, and label provenance.
Nick Kampe16 min read
Methodology
What Bitcoin clusters prove and what CoinJoin and Payjoin break
Bitcoin address clustering is an analytical inference, not an on-chain fact. CoinJoin and Payjoin can break it. For attorneys evaluating tracing reports.
Nick Kampe13 min read
Methodology
Preserving crypto-native ESI before it disappears
Preserve crypto-native evidence before it disappears: wallets, devices, exchange records, and browser data, with a defensible hold and Rule 37(e) context.
Nick Kampe12 min read
Methodology
Beyond the transaction hash: receipts, logs, and EVM traces
A transaction hash proves submission, not success. Receipts, event logs, and EVM traces answer whether execution succeeded and what assets moved.
Nick Kampe12 min read
Methodology
How an opposing expert's blockchain analysis can be challenged
How to identify weaknesses in an opposing blockchain expert report, test its methods, and prepare focused cross-examination or rebuttal testimony.
Nick Kampe8 min read
Methodology
Why blockchain forensic reports fail Daubert scrutiny
Why blockchain forensic reports fail Daubert scrutiny, including opaque attribution, overstated clustering, missing reproducibility, and omitted limits.
Nick Kampe8 min read
Methodology
Common mistakes in cryptocurrency investigations
Eight common mistakes in cryptocurrency investigations, from delayed evidence preservation to weak attribution, and how they compromise a case.
Nick Kampe11 min read