(parentheses + italics = commentary, questions on how these challenges are structured. obviously not intended to be in the text for the students.)
(This challenge is focused on not needing any coding skills and just discussing/knowing basic bitcoin mechanisms)
| Tx number | Fee /sats | Weight | Standard? | Consensus valid? | Spends from |
|---|---|---|---|---|---|
| 1 | 58M | 3.6M | ✔️ | ✔️ | 4 |
| #!/bin/bash | |
| set -eo pipefail | |
| JDK_VERSION="23.0.2" | |
| JDK_SHA="017f4ed8e8234d85e5bc1e490bb86f23599eadb6cfc9937ee87007b977a7d762" | |
| JDK_URL="https://download.java.net/java/GA/jdk23.0.2/6da2a6609d6e406f85c491fcb119101b/7/GPL/openjdk-23.0.2_linux-x64_bin.tar.gz" | |
| GRADLE_VERSION="8.10.2" | |
| GRADLE_SHA="31c55713e40233a8303827ceb42ca48a47267a0ad4bab9177123121e71524c26" | |
| GRADLE_URL="https://services.gradle.org/distributions/gradle-8.10.2-bin.zip" |
| # HW Requirements | |
| # I recommend 8 CPU cores and 16 GB of RAM on the system or VM if using the deepseek-r1:1.5b model | |
| # 1. install docker | |
| # e.g. see: https://www.digitalocean.com/community/tutorials/how-to-install-and-use-docker-on-rocky-linux-9 | |
| # 2a. assuming an Nvidia GPU is available, run: | |
| `docker run -d -p 3000:8080 --gpus=all -v ollama:/root/.ollama -v open-webui:/app/backend/data --name open-webui --restart always ghcr.io/open-webui/open-webui:ollama` | |
| # 2b. if an Nvidia GPU is not available, run: |
| #!/bin/bash | |
| # Exit on any error | |
| set -e | |
| echo "🚀 Starting Password Entropy Calculator setup..." | |
| # Create project structure | |
| PROJECT_DIR="password-entropy-calc" | |
| mkdir -p $PROJECT_DIR/{cmd/server,wasm,static} |
| #!/bin/bash | |
| # Exit on any error | |
| set -e | |
| echo "🚀 Starting Go WASM Hello World setup..." | |
| # Check if Go is installed, if not install it | |
| if ! command -v go &> /dev/null; then | |
| echo "📦 Installing Go..." |
| #!/bin/bash | |
| echo "Listing processes and their associated user namespaces:" | |
| for pid in $(ls /proc | grep '^[0-9]*$'); do | |
| if [ -e /proc/$pid/ns/user ]; then | |
| # Get the process command line | |
| cmdline=$(cat /proc/$pid/cmdline | tr '\0' ' ') | |
| # Get the process owner |
| #!/bin/bash | |
| # bash_c_example.sh | |
| # Directory to store the C source file and the executable | |
| EXAMPLES_DIR="$HOME/bash_c_examples" | |
| # Ensure the directory exists, create it if not | |
| mkdir -p "$EXAMPLES_DIR" | |
| # Check if hello_world.c and hello_world executable already exist |
| # bcrypt-argon2-pbkdf2-hash-test.py | |
| import threading | |
| import bcrypt | |
| from pwdlib.hashers import argon2 | |
| from pwdlib import PasswordHash | |
| from pwdlib.hashers.argon2 import Argon2Hasher | |
| from hashlib import pbkdf2_hmac | |
| import time | |
| import psutil |
| # lnd-postgres-kv-decoder.py | |
| from decouple import config | |
| import psycopg2 | |
| import psycopg2.extras | |
| import pandas as pd | |
| import time | |
| tables = ['channeldb_kv', 'decayedlogdb_kv', 'macaroondb_kv', | |
| 'towerclientdb_kv', 'towerserverdb_kv', 'walletdb_kv'] |
| ### PostgreSQL: format multiple columns into string for each row using a semicolon as separator between fields | |
| ``` | |
| SELECT | |
| FORMAT('%s; %s; %s; %s', | |
| col_one, col_two, col_three, col_four) | |
| AS entries | |
| FROM table_name; | |
| ``` |