Miner message Updated 2025-07-16
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A "miner message" is an inscription message left by a miner on a blockchain.
This is opposed to messages that may be left by non miners during transactions.
Miner messages are therefore of course much harder to control on established blockchains, as they basically require consensus in a mining pool to set. Most of them are just ads for the mining pool itself.
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Apache Jena Updated 2025-07-16
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AntPool Updated 2025-07-16
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Cool data embedded in the Bitcoin blockchain / China Updated 2025-07-16
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Cool data embedded in the Bitcoin blockchain / IRC log dumps Updated 2025-07-16
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tx 210000d1392bec2505d1289e5c39c2039204ff1ecf7eef55f973ccd3111003e1, block 360235 (2015-06-10) and the following transactions have transcripts of a very long developer chat starting with:
jgarzik: if you aren't near one of the consulates there are some companies that will charge you money to do it...
TODO purpose? The transcripts are interspersed with developers likely voting for project leadership, and commenting on Gavin.
TODO find original discussion location, these are almost certainly from one of the Bitcoin IRC channels.
Part of the goal of this dump is that the Bitcoin developers have a policy of not allowing logging on their talk channel, and this released it all to the blockchain forever where it cannot be deleted. These might just be more of protests against larger block sizes.
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qiskit/initialize.py Updated 2025-07-16
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In this example we will initialize a quantum circuit with a single CNOT gate and see the output values.
By default, Qiskit initializes every qubit to 0 as shown in the qiskit/hello.py. But we can also initialize to arbitrary values as would be done when computing the output for various different inputs.
Output:
     ┌──────────────────────┐
q_0: ┤0                     ├──■──
     │  Initialize(1,0,0,0) │┌─┴─┐
q_1: ┤1                     ├┤ X ├
     └──────────────────────┘└───┘
c: 2/═════════════════════════════

init: [1, 0, 0, 0]
probs: [1. 0. 0. 0.]

init: [0, 1, 0, 0]
probs: [0. 0. 0. 1.]

init: [0, 0, 1, 0]
probs: [0. 0. 1. 0.]

init: [0, 0, 0, 1]
probs: [0. 1. 0. 0.]

     ┌──────────────────────────────────┐
q_0: ┤0                                 ├──■──
     │  Initialize(0.70711,0,0,0.70711) │┌─┴─┐
q_1: ┤1                                 ├┤ X ├
     └──────────────────────────────────┘└───┘
c: 2/═════════════════════════════════════════

init: [0.7071067811865475, 0, 0, 0.7071067811865475]
probs: [0.5 0.5 0.  0. ]
which we should all be able to understand intuitively given our understanding of the CNOT gate and quantum state vectors.
quantumcomputing.stackexchange.com/questions/13202/qiskit-initializing-n-qubits-with-binary-values-0s-and-1s describes how to initialize circuits qubits only with binary 0 or 1 to avoid dealing with the exponential number of elements of the quantum state vector.
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Cool data embedded in the Bitcoin blockchain / Software Updated 2025-07-16
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GitHub is for newbs.
  • 50002f38a40aeca96f7d03ceac1c62fc233b44207af99df8f1daddf03f6ef61c via cryptograffiti.info contains a Python script that starts with:
    #!/usr/bin/env python3
#
# This file is placed in the public domain.
#
# CryptoGraffiti tool
#
# Requires python-bitcoinlib-v0.2.1
#
# https://github.com/petertodd/python-bitcoinlib
#
# pip install python-bitcoinlib
  • 209c9106c7261582f5d0907819c6e10dea670c273133047d911be41f8a42d86f via cryptograffiti.info contains a Base64 encoded Python script starting in:
    #!/usr/bin/env python
# brainwallet "base58"
# v2015-05-18, fixed Tor DNS problem
import binascii
import hashlib
    Some related ones:
    • 25658f625c8f3964593b9e3c632040cb69aea9cf24403af33ab173d7cba7c42f
    • 7d188bd499137b5a0d68271ef8a4f3c4dc2f2b38bd03dfc913cb2b0be15b1e0d
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Cool data embedded in the Bitcoin blockchain / Technically interesting ordinal Updated 2025-07-16
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This section is about ordinals that are interesting primarily due to technical reasons linked to edge cases of the protocol.
Interesting MIME types:
Different ord markers:
  • 71e85885522047240a9e70542145dbf2385e1bd468e6ac6002aa755422ea10f5 uses takingnames. Decode with:
    bitcoin-core.cli decodescript "$(bitcoin-core.cli getrawtransaction 71e85885522047240a9e70542145dbf2385e1bd468e6ac6002aa755422ea10f5 true | jq -r '.vin[0].txinwitness[1]')" | jq -r .asm | sed 's/.* 0 //;s/ OP_ENDIF//;s/ //g' | xxd -r -p > 71e85885522047240a9e70542145dbf2385e1bd468e6ac6002aa755422ea10f5.png
    gives the PNG of the wireframe draing of a washing machine with transparent background.
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Cool data embedded in the Bitcoin blockchain / Trump Updated 2025-07-16
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There's a bit of both sides in the 2016 race:
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Andrew Wiles Updated 2025-07-16
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Video 1.
Beauty Is Suffering
. Source.
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Create gradient image with ImageMagick Updated 2025-07-16
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convert -size 256x256 gradient: out.png
convert -size 256x256 gradient:white-black out.png
convert -size 256x256 gradient:red-blue out.png
convert -size 256x256 radial-gradient: out.png
convert -size 256x256 radial-gradient:white-black out.png
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