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When people first try to report a crypto scam, one request stops them cold: "Please provide the transaction hashes." If that means nothing to you, you are not alone — and the concept is simpler than it sounds. It is also the single most valuable piece of evidence you can bring to your case.
What a transaction hash actually is
Every time crypto moves between wallets, the network records it permanently on a public ledger. Each record gets a unique identifier — a long string of letters and numbers — called a transaction hash (or TX hash, or TX ID).
Think of it as the receipt number for one specific transfer. It looks like 0x9f3c…a71b and points to exactly one transaction: the amount, the sending wallet, the receiving wallet, and the precise time.
Two things make it powerful:
- It is permanent — once recorded, it cannot be altered or deleted.
- It is public — anyone with the hash can look the transaction up.
Why it matters for your case
For an investigator, a hash is the thread that unravels the sweater. From one hash, it is possible to follow the money across wallets — and sometimes to the point where it enters a regulated service that performs identity checks.
Your wallet
the transfer you made
Scammer wallet
first destination
Intermediary wallets
layering to obscure
Exchange
identity checks apply
Without hashes, a report is a story. With them, it becomes traceable evidence — and that difference often decides whether a case gets meaningful attention.
Copy them exactly.
A transaction hash must be copied character for character. A single wrong character points to a different transaction, or to nothing at all. Use the copy button wherever one is offered.
Where to find your transaction hashes
| Source | Where to look |
|---|---|
| Exchange (Coinbase, Binance, Kraken…) | Transaction history → the specific withdrawal → "Transaction ID" or "TxID" |
| Self-custody wallet (MetaMask, Trust…) | Activity tab → tap the transaction → it links to a block explorer |
| Block explorer | Paste your own wallet address to see every associated transaction |
What investigators do with them
With your hashes, an investigator uses blockchain-analysis tools to trace the flow and, where possible, identify the off-ramp. You can even look a hash up yourself in a blockchain explorer, then open the wallet address that received your funds to see where they moved next. Our guide to tracing stolen crypto walks through how that follow-the-money process works. You can see the kinds of tools involved on our OSINT tools page, and the crypto dictionary explains any unfamiliar terms.
Turn confusion into evidence
You do not need to become a blockchain expert — you just need to know which receipts to keep. Gather your hashes, keep them organized, and bring them to your report. The guided report your case flow will prompt you for exactly the right details.
Key takeaways
- A transaction hash is the permanent, public receipt for one crypto transfer.
- It is the single most useful piece of evidence in a fraud case.
- Find it in your exchange history, wallet activity, or a block explorer.
- Copy each hash exactly — one wrong character points elsewhere.
- Hashes turn a story into traceable evidence investigators can follow.
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Scambulance will never ask for your private keys, passwords, or seed phrases. Anyone promising guaranteed fund recovery is likely a scammer.