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CH02::block explorers: modernize list and add warning

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Replace older block explorers with modern alternatives and warn readers
that looking up info on explorers may disclose their interest to third
parties.
This commit is contained in:
David A. Harding 2023-02-03 21:15:04 -10:00
parent be0ab0c6c5
commit 9435ad7d66
1 changed files with 13 additions and 2 deletions
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ch02.asciidoc
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@ -40,9 +40,9 @@ image::images/mbc2_0201.png["Bitcoin Overview"]
((("Bitcoin Block Explorer")))((("BlockCypher Explorer")))((("blockchain.info")))((("BitPay Insight")))Popular blockchain explorers include:
* https://blockstream.info/[Blockstream Explorer]
* https://mempool.space[Mempool.Space]
* https://live.blockcypher.com[BlockCypher Explorer]
* https://blockchain.info[blockchain.info]
* https://insight.bitpay.com[BitPay Insight]
Each of these has a search function that can take a Bitcoin address,
transaction hash, block number, or block hash and retrieve corresponding
@ -50,6 +50,17 @@ information from the Bitcoin network. With each transaction or block
example, we will provide a URL so you can look it up yourself and study
it in detail.
[WARNING]
====
Searching information on a block explorer may disclose to its operator
that you're interested in that information, allowing them to associate
it with your IP address, browser fingerprint, past searches, or other
identifiable information. If you look up the transactions in this book,
the operator of the block explorer might guess that you're learning
about Bitcoin, which shouldn't be a problem. But if you look up your
own transactions, the operator may be able to guess how many bitcoins
you've received, spent, and currently own.
====
[[bitcoin_e_commerce]]
==== Buying from an Online Store