Questions tagged [chainanalysis]

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15 views

use java to scan all the block

I am trying to scan all the bitcoin data on my workstation with java to get some high level statistic data. I parsed all the transactions with bitcoinJ, but I encountered a problem, the Transaction ...
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2answers
220 views

Open-source forensic analysis tools to analyze full-node's local copy of Bitcoin blockchain?

Are there any open source alternatives to Chainalysis Reactor for doing forensic analysis of a local copy of the full Bitcoin blockchain?
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0answers
71 views

Where can I download the bitcoin blockchain to do offline analysis?

Where can I download the bitcoin blockchain to do some offline analysis. edit: Ideally I'd like to download .txt (or another file extension, e.g. .dat, as long as the contents are unencoded and human ...
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71 views

Help analyzing this color coded hexdump of the Bitcoin blockchain

Sample of genesis, growth, and current height Sample of the latter part and the end of blk02655.dat. This probably covers parts of the last 10000 blocks. Process here: https://twitter.com/...
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3answers
116 views

Can stolen or otherwise tainted coins be laundered through mining fees?

Do chain analysis techniques consider the fee portion of block rewards as tainted funds? e.g. if known stolen funds are moved in a certain block, the fees the sender pays end up "polluting" ...
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1answer
111 views

Are the blocks in blkxxxxx.dat files ordered by block height?

I'm parsing out de blockxxxxx.dat files for the bitcoin blockchain. Are the blocks ordered by height? So is the order of the data for everybody the same?
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79 views

What's up with the block size of block# 295182?

I found an anomaly in the block size data: block 295182. This one seems to have a way higher payload. What happened there? Or is this there something wrong with my parsing? This file block does ...
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1answer
28 views

Are blocks stored in blkxxxxx.dat files per line?

Simple question. Is each line in a blkxxxxx.dat file a block?
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1answer
50 views

Why is data stored in reverse in the blockchain files?

I'm parsing the binary data from the bitcoin core blockchain blkxxxxx.dat files. If I read out the magic number I get this: \xf9\xbe\xb4\xd9\ Why isn't it stored the other way around, as the magic ...
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2answers
123 views

How can other parties track the inflows, outflows, and reserves of exchanges?

I see that there are a few sites that provide analytics for the reserves that exchanges are holding as well as inflows and outflows (e.g. https://www.tokenanalyst.io/dashboard). How are these ...
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1answer
437 views

Is there a bitcoin explorer that can visualize where the coins are flowing from one address into another?

I remember playing with a bitcoin explorer tool awhile back where one can input a bitcoin address and see all the coins flowing into it in a tree like structure. I want to be able to investigate where ...
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2answers
1k views

Determine which transaction output is a change address and which is not [duplicate]

Is there a way to determine which transaction output is a likely a change address and which is not? Looking at this transaction, there are two outputs - a change address and the output address. ...
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1answer
72 views

Is there a way to link a bitcoin user's transaction to entering a lightning network channel?

Since lightning channels are offchain. When you send bitcoins to a lightning network node or wallet. Is there a way for companies like chainalysis to see if your on the lightning network? And then ...
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2answers
1k views

How does one monitor all bitcoin address that hold more than a certain amount and detect movement from cold storage?

Is there a service or site where one can monitor all large bitcoin hodler addresses to detect movement? And as seen below with the mt.gox trustee moving coins from his cold storage. How does one find ...