Datasets:

COINjecture
/

NP_Solutions_v3

license: mit
task_categories:
  - other
tags:
  - blockchain
  - proof-of-useful-work
  - np-complete
  - computational-complexity
  - consensus
  - cryptography
  - decentralized
  - peer-to-peer
size_categories:
  - 1K<n<10K

🔬 COINjecture NP Solutions Dataset v3

Institutional-Grade Blockchain Research Data

A comprehensive, real-time dataset of NP-complete problem solutions generated through Proof-of-Useful-Work (PoUW) blockchain consensus

Overview • Data Schema • Metrics • Pipeline • Usage • Citation

📋 Overview

This dataset contains institutional-grade metrics from the COINjecture Network B blockchain, which implements a novel Proof-of-Useful-Work (PoUW) consensus mechanism. Unlike traditional Proof-of-Work systems that compute arbitrary hashes, COINjecture miners solve genuine NP-complete computational problems, producing verifiable solutions with real-world applicability.

Key Characteristics

Property	Value
Network	COINjecture Network B v3
Genesis Date	December 1, 2025
Genesis Hash	`4a80254b4a48e867`
Chain ID	`coinject-network-b-v2`
Data Version	v3.1 (Institutional Grade)
Problem Types	SAT, SubsetSum, TSP
Update Frequency	Every ~10 seconds
Metrics Per Record	54+ fields
Format	JSON Lines (.jsonl)
Consensus	Multi-peer (51% threshold)

What's New in v3

Feature	Description
🌱 Fresh Genesis	Clean chain start - December 1, 2025
🤝 Multi-Peer Consensus	51% agreement threshold for mining
🔗 Connection Stability	TCP keepalive, yamux optimization
🔄 Better Sync	Nodes sync regardless of height differences
📡 P2P Improvements	Stable gossipsub mesh with peer tracking

Research Applications

Computational Complexity: Empirical NP-complete problem analysis
Algorithm Performance: Solve/verify time distributions
Distributed Systems: Consensus and propagation metrics
Energy Research: Computational efficiency studies
Cryptographic Analysis: Hash function and difficulty research

📊 Data Schema

Each record represents a mined block containing a solved NP-complete problem.

Core Fields

Field	Type	Description
`block_height`	uint64	Block number in canonical chain
`block_hash`	string	SHA-256 block header hash (hex)
`prev_block_hash`	string	Parent block hash
`timestamp`	string	ISO 8601 block creation time
`problem_type`	string	SAT, SubsetSum, or TSP

Problem Fields

Field	Type	Description
`problem_instance`	object	Serialized problem definition
`solution`	object	Verified solution
`problem_size`	uint32	Complexity metric
`is_satisfiable`	boolean	SAT: satisfying assignment exists

📈 Metrics Categories

⏱️ Timing (Microsecond Precision)

Field	Unit	Description
`solve_time_us`	μs	Solution computation time
`verify_time_us`	μs	Verification time
`block_time_seconds`	s	Total block production
`mining_attempts`	count	Hash attempts

💾 Memory

Field	Unit	Description
`solve_memory_bytes`	bytes	Peak solve memory
`verify_memory_bytes`	bytes	Peak verify memory
`peak_memory_bytes`	bytes	Maximum allocation

🌐 Network

Field	Unit	Description
`peer_count`	count	Connected peers
`propagation_time_ms`	ms	Block propagation latency
`sync_lag_blocks`	blocks	Distance from tip

⛏️ Mining

Field	Description
`difficulty_target`	Current difficulty (hex)
`nonce`	Winning nonce
`hash_rate_estimate`	Network hash rate (H/s)
`mined_locally`	This node mined block

🔗 Chain

Field	Description
`chain_work`	Cumulative PoW score
`transaction_count`	Transactions in block
`block_size_bytes`	Serialized size

💰 Economics (η = 1/√2)

Field	Unit	Description
`block_reward`	tokens	Mining reward
`total_fees`	tokens	Transaction fees

🖥️ Hardware

Field	Description
`cpu_model`	Processor identifier
`cpu_cores`	Physical cores
`cpu_threads`	Logical threads
`ram_total_bytes`	System RAM
`os_info`	Operating system

🏷️ Provenance

Field	Description
`node_version`	Software version
`node_id`	Node identifier (anonymized)
`data_version`	Schema version (v3.1)
`measurement_confidence`	Quality score (0.0-1.0)

🔬 Problem Types

SAT (Boolean Satisfiability)

{
  "problem_type": "SAT",
  "problem_instance": {
    "num_variables": 50,
    "num_clauses": 215,
    "clauses": [[1, -3, 5], [-2, 4]]
  },
  "solution": {
    "satisfiable": true,
    "assignment": [true, false, true]
  }
}

SubsetSum

{
  "problem_type": "SubsetSum",
  "problem_instance": {
    "set": [3, 7, 1, 8, -2, 4],
    "target": 12
  },
  "solution": {
    "subset_indices": [1, 3, 5]
  }
}

TSP (Traveling Salesman)

{
  "problem_type": "TSP",
  "problem_instance": {
    "num_cities": 20,
    "distances": [[0, 10, 15], [10, 0, 20]]
  },
  "solution": {
    "tour": [0, 3, 1, 4, 2, 0],
    "total_distance": 97
  }
}

📖 Usage

Load with HuggingFace

from datasets import load_dataset
dataset = load_dataset("COINjecture/NP_Solutions_v3")

for record in dataset["train"]:
    print(f"Block {record['block_height']}: {record['problem_type']}")

Load Raw JSONL

import json
from pathlib import Path

records = []
for f in Path("data").glob("*.jsonl"):
    records.extend(json.loads(line) for line in open(f))

Analysis Example

import pandas as pd
df = pd.DataFrame(dataset["train"])
stats = df.groupby("problem_type")["solve_time_us"].describe()
print(stats)

🔄 Data Pipeline Architecture

Pipeline Summary

Layer	Components	Function
⛓️ Consensus	Genesis → SAT/SubsetSum/TSP → Multi-Peer Validation	Problem solving & block creation
🌐 P2P Network	Droplet 1 ↔ Droplet 2 ↔ GCE Node	Gossipsub mesh for block propagation
📈 Metrics	Timing, Memory, Hardware, Network, Economics	54+ measurements per block
🎯 Output	10-block buffer → HuggingFace upload	~10 second update frequency

📊 Data Quality

Standard	Description
Cryptographic Integrity	Block hashes verified
Solution Validity	All solutions independently verified
Timing Accuracy	Microsecond precision (monotonic clocks)
Hardware Attribution	Full system context
Chain Continuity	Complete chain reconstruction
Consensus Verification	Multi-peer agreement

Version History

Version	Date	Changes
v3.1	Dec 2025	Fresh genesis, multi-peer consensus
v3.0	Nov 2025	54+ fields, hardware context
v2.0	Oct 2025	Timing metrics, energy estimates
v1.0	Sep 2025	Initial release

📜 Citation

@dataset{coinjecture_np_solutions_v3,
  title={COINjecture NP Solutions Dataset v3},
  author={{COINjecture Network Contributors}},
  year={2025},
  publisher={Hugging Face},
  url={https://huggingface.co/datasets/COINjecture/NP_Solutions_v3},
  note={Proof-of-Useful-Work blockchain research data}
}

📄 License

MIT License - Free to use, modify, and distribute for any purpose.

🔗 Resources

Resource	Link
Previous Dataset	NP_Solutions_v2
Source Code	GitHub
Whitepaper	COINjecture.com

Built with 💎 by COINjecture Network • η = λ = 1/√2