Author

Topic: There's a Trump portrait at block 879613 (Read 59 times)

legendary
Activity: 1568
Merit: 6660
bitcoincleanup.com / bitmixlist.org
January 23, 2025, 06:55:03 AM
#2
Yeah, we saw that. It was first reported here:

Mara pool draws Trump ))
hero member
Activity: 1008
Merit: 960
January 23, 2025, 06:28:37 AM
#1
The company MARA mined block 879613 and decided to create some art in it (Note that there's also the constitution of the USA in the OP_RETURNs)



That green dot at the bottom left clearly will annoy some people  Grin

Here is the block at mempool: https://mempool.space/block/000000000000000000010c05038d08c742d28a7a248e9d0f94ebe5102f366c8e?audit=false

Note that you need to leave audit=false at the url, otherwise you don't get the full picture correctly:



https://mempool.space/block/000000000000000000010c05038d08c742d28a7a248e9d0f94ebe5102f366c8e

Here's how the audit works at mempool:

A block audit visually compares Mempool's expected block to the actual block for a particular block height.

How is the expected block determined? Mempool monitors its view of the mempool and runs a re-implementation of Bitcoin Core's transaction selection algorithm to determine the transactions it expects to see in upcoming blocks (source code here). Since there is a continual flow of new transactions, this algorithm runs every 2 seconds, and as a result, you will see the transactions projected to be in upcoming blocks change in near real-time.

At the moment a new block is mined, Mempool saves a snapshot of its projected block template for the next block. We call this snapshot the expected block for the block height in question, and it serves as the basis for the block audit.

When details for an expected block and actual block are available, we can compare them. The purpose of block audits is to deduce when miners intentionally include or exclude transactions from blocks they mine. Since this information cannot be precisely known, Mempool uses a handful of heuristics to accomplish this.

Block audits highlight transactions in different colors to convey these heuristics:



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