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README.md

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+---
+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
+
+[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
+[![Data Version](https://img.shields.io/badge/Data%20Version-v3.1-blue.svg)]()
+[![Update Frequency](https://img.shields.io/badge/Updates-Real--time-green.svg)]()
+
+**A comprehensive, real-time dataset of NP-complete problem solutions generated through Proof-of-Useful-Work (PoUW) blockchain consensus**
+
+[Overview](#-overview) • [Data Schema](#-data-schema) • [Metrics Categories](#-metrics-categories) • [Usage](#-usage) • [Citation](#-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 (Fresh Genesis - December 2024) |
+| **Genesis Hash** | `4a80254b4a48e867b57399469b0a1fbaba8848e8ac738587b55ebf6e6b8c4b23` |
+| **Chain ID** | `coinject-network-b-v2` |
+| **Data Version** | v3.1 (Institutional Grade) |
+| **Problem Types** | SAT, SubsetSum, TSP |
+| **Update Frequency** | Every ~10 blocks (~10 seconds) |
+| **Metrics Per Record** | 54+ fields |
+| **Format** | JSON Lines (.jsonl) |
+| **Consensus** | Multi-peer consensus with 51% agreement threshold |
+
+### What's New in v3
+
+| Feature | Description |
+|---------|-------------|
+| **Fresh Genesis** | Clean chain start with new genesis block |
+| **Improved Consensus** | Multi-peer consensus with configurable thresholds |
+| **Connection Stability** | TCP keepalive, yamux optimization, 5-min idle timeout |
+| **Better Sync** | Nodes sync properly regardless of block height differences |
+| **P2P Improvements** | Stable gossipsub mesh with proper peer tracking |
+
+### Research Applications
+
+- **Computational Complexity**: Empirical analysis of NP-complete problem hardness
+- **Algorithm Performance**: Solve/verify time distributions across problem types
+- **Distributed Systems**: Consensus metrics and network propagation analysis
+- **Energy Research**: Computational efficiency and resource utilization studies
+- **Cryptographic Analysis**: Hash function behavior and difficulty adjustment
+
+---
+
+## 📊 Data Schema
+
+Each record represents a block in the COINjecture blockchain containing a solved NP-complete problem instance.
+
+### Core Fields
+
+| Field | Type | Description |
+|-------|------|-------------|
+| block_height | uint64 | Sequential block number in the canonical chain |
+| block_hash | string | SHA-256 hash of the block header (hex-encoded) |
+| prev_block_hash | string | Hash of the parent block (enables chain traversal) |
+| timestamp | string | ISO 8601 timestamp of block creation |
+| problem_type | string | NP-complete problem class: SAT, SubsetSum, or TSP |
+
+### Problem Instance Fields
+
+| Field | Type | Description |
+|-------|------|-------------|
+| problem_instance | object | Serialized problem definition (varies by type) |
+| solution | object | Verified solution to the problem instance |
+| problem_size | uint32 | Instance complexity metric (variables, nodes, etc.) |
+| is_satisfiable | boolean | For SAT: whether a satisfying assignment exists |
+
+---
+
+## 📈 Metrics Categories
+
+### ⏱️ Timing Metrics (Microsecond Precision)
+
+High-resolution timing data for performance analysis:
+
+| Field | Type | Unit | Description |
+|-------|------|------|-------------|
+| solve_time_us | uint64 | μs | Time to find the solution |
+| verify_time_us | uint64 | μs | Time to verify solution correctness |
+| block_time_seconds | float64 | s | Total block production time |
+| mining_attempts | uint64 | count | Hash attempts before valid block found |
+
+### 💾 Memory Metrics
+
+Resource utilization during computation:
+
+| Field | Type | Unit | Description |
+|-------|------|------|-------------|
+| solve_memory_bytes | uint64 | bytes | Peak memory during solve phase |
+| verify_memory_bytes | uint64 | bytes | Peak memory during verification |
+| peak_memory_bytes | uint64 | bytes | Maximum memory allocation |
+
+### 🌐 Network Metrics
+
+Distributed system behavior:
+
+| Field | Type | Unit | Description |
+|-------|------|------|-------------|
+| peer_count | uint32 | count | Connected peers at block time |
+| propagation_time_ms | uint64 | ms | Block propagation latency |
+| sync_lag_blocks | int64 | blocks | Distance from network tip |
+
+### ⛏️ Mining Metrics
+
+Consensus and difficulty data:
+
+| Field | Type | Description |
+|-------|------|-------------|
+| difficulty_target | string | Current difficulty target (hex) |
+| nonce | uint64 | Winning nonce value |
+| hash_rate_estimate | float64 | Estimated network hash rate (H/s) |
+| mined_locally | boolean | Whether this node mined the block |
+
+### 🔗 Chain Metrics
+
+Blockchain state information:
+
+| Field | Type | Description |
+|-------|------|-------------|
+| chain_work | string | Cumulative proof-of-work score |
+| transaction_count | uint32 | Transactions in block |
+| block_size_bytes | uint64 | Serialized block size |
+
+### 💰 Economic Metrics
+
+Token economics data (η = λ = 1/√2 tokenomics):
+
+| Field | Type | Unit | Description |
+|-------|------|------|-------------|
+| block_reward | uint64 | tokens | Mining reward for this block |
+| total_fees | uint64 | tokens | Transaction fees collected |
+
+### 🖥️ Hardware Context
+
+Node environment information for reproducibility:
+
+| Field | Type | Description |
+|-------|------|-------------|
+| cpu_model | string | Processor model identifier |
+| cpu_cores | uint32 | Physical CPU cores |
+| cpu_threads | uint32 | Logical CPU threads |
+| ram_total_bytes | uint64 | Total system RAM |
+| os_info | string | Operating system details |
+
+### 🏷️ Provenance Metadata
+
+Data lineage and quality indicators:
+
+| Field | Type | Description |
+|-------|------|-------------|
+| node_version | string | Software version that produced this record |
+| node_id | string | Unique node identifier (anonymized) |
+| data_version | string | Schema version (currently v3.1) |
+| measurement_confidence | float64 | Data quality score (0.0-1.0) |
+
+---
+
+## 🔬 Problem Types
+
+### SAT (Boolean Satisfiability)
+
+The canonical NP-complete problem. Given a Boolean formula in CNF, find a satisfying assignment or prove none exists.
+
+```json
+{
+  "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
+
+Given a set of integers and a target sum, find a subset that sums to the target.
+
+```json
+{
+  "problem_type": "SubsetSum",
+  "problem_instance": {
+    "set": [3, 7, 1, 8, -2, 4],
+    "target": 12
+  },
+  "solution": {
+    "subset_indices": [1, 3, 5]
+  }
+}
+```
+
+### TSP (Traveling Salesman Problem)
+
+Find the shortest Hamiltonian cycle through all vertices in a weighted graph.
+
+```json
+{
+  "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
+
+### Loading with Hugging Face Datasets
+
+```python
+from datasets import load_dataset
+
+# Load the complete dataset
+dataset = load_dataset("COINjecture/NP_Solutions_v3")
+
+# Access records
+for record in dataset["train"]:
+    print(f"Block {record['block_height']}: {record['problem_type']}")
+    print(f"  Solve time: {record['solve_time_us']}μs")
+    print(f"  CPU: {record['cpu_model']}")
+```
+
+### Loading Raw JSONL
+
+```python
+import json
+from pathlib import Path
+
+records = []
+for jsonl_file in Path("data").glob("*.jsonl"):
+    with open(jsonl_file) as f:
+        for line in f:
+            records.append(json.loads(line))
+
+print(f"Loaded {len(records)} records")
+```
+
+### Filtering by Problem Type
+
+```python
+sat_problems = dataset["train"].filter(
+    lambda x: x["problem_type"] == "SAT"
+)
+print(f"SAT problems: {len(sat_problems)}")
+```
+
+### Performance Analysis Example
+
+```python
+import pandas as pd
+
+# Convert to DataFrame for analysis
+df = pd.DataFrame(dataset["train"])
+
+# Analyze solve times by problem type
+stats = df.groupby("problem_type")["solve_time_us"].agg(["mean", "std", "min", "max"])
+print(stats)
+
+# Hardware comparison
+hardware_stats = df.groupby("cpu_model")["solve_time_us"].mean()
+print(hardware_stats)
+```
+
+---
+
+## 📊 Data Quality
+
+### Verification Standards
+
+All data in this dataset meets the following quality criteria:
+
+| Standard | Description |
+|----------|-------------|
+| **Cryptographic Integrity** | Every block hash is verified against the chain |
+| **Solution Validity** | All NP-complete solutions are independently verified |
+| **Timing Accuracy** | Microsecond-precision timestamps from monotonic clocks |
+| **Hardware Attribution** | Full system context for reproducibility |
+| **Chain Continuity** | prev_block_hash enables complete chain reconstruction |
+| **Consensus Verification** | Multi-peer agreement before block acceptance |
+
+### Data Versioning
+
+| Version | Release | Changes |
+|---------|---------|---------|
+| **v3.1** | Dec 2024 | Fresh genesis, improved P2P, multi-peer consensus |
+| v3.0 | Nov 2024 | Institutional-grade: 54+ fields, hardware context |
+| v2.0 | Oct 2024 | Added timing metrics, energy estimates |
+| v1.0 | Sep 2024 | Initial release: basic problem/solution data |
+
+---
+
+## 🔄 Update Frequency
+
+This dataset receives **real-time updates** approximately every 10 blocks (~10 seconds of blockchain time). New JSONL files are appended as blocks are mined on the COINjecture Network B.
+
+### Data Pipeline Architecture
+
+```
+┌─────────────────────────────────────────────────────────────────┐
+│                    ⛓️ CONSENSUS LAYER                           │
+│                                                                 │
+│    🌱 Genesis (Block 0) ─── Hash: 4a80254b4a48e867...          │
+│           │                                                     │
+│     ┌─────┼─────┐                                              │
+│     ▼     ▼     ▼                                              │
+│   🧮SAT 📊Sum 🗺️TSP                                            │
+│     │     │     │                                              │
+│     └─────┴─────┘                                              │
+│           │                                                     │
+│           ▼                                                     │
+│    Multi-Peer Consensus (51% threshold)                        │
+└─────────────────────────────────────────────────────────────────┘
+                              │
+                              ▼
+┌─────────────────────────────────────────────────────────────────┐
+│                    🌐 P2P NETWORK                               │
+│                                                                 │
+│    📡 Droplet 1 ◄────► 📡 Droplet 2 ◄────► 📡 GCE Node        │
+│         │                   │                   │               │
+│         └───────────────────┴───────────────────┘               │
+│                             │                                   │
+│                    💬 Gossipsub Mesh                           │
+│                    (Status + Blocks + Txns)                    │
+└─────────────────────────────────────────────────────────────────┘
+                              │
+                              ▼
+┌─────────────────────────────────────────────────────────────────┐
+│                    📈 METRICS ENGINE                            │
+│                                                                 │
+│   ⏱️Timing  💾Memory  🖥️Hardware  🌐Network  💰Economics       │
+│      │         │          │          │           │              │
+│      └─────────┴──────────┴──────────┴───────────┘              │
+│                          │                                      │
+│                   54+ metrics/block                            │
+└─────────────────────────────────────────────────────────────────┘
+                              │
+                              ▼
+┌─────────────────────────────────────────────────────────────────┐
+│                    🎯 DATA OUTPUT                               │
+│                                                                 │
+│              📦 Buffer (10 blocks)                             │
+│                       │                                         │
+│              every ~10 seconds                                  │
+│                       │                                         │
+│                       ▼                                         │
+│           🤗 HuggingFace NP_Solutions_v3                       │
+│                       │                                         │
+│                       ▼                                         │
+│               🔌 Datasets API                                  │
+└─────────────────────────────────────────────────────────────────┘
+```
+
+---
+
+## 📜 Citation
+
+If you use this dataset in your research, please cite:
+
+```bibtex
+@dataset{coinjecture_np_solutions_v3,
+  title={COINjecture NP Solutions Dataset v3},
+  author={{COINjecture Network Contributors}},
+  year={2024},
+  publisher={Hugging Face},
+  url={https://huggingface.co/datasets/COINjecture/NP_Solutions_v3},
+  note={Institutional-grade blockchain research data from Proof-of-Useful-Work consensus}
+}
+```
+
+---
+
+## 📄 License
+
+This dataset is released under the **MIT License**. You are free to use, modify, and distribute this data for any purpose, including commercial applications.
+
+---
+
+## 🔗 Related Resources
+
+| Resource | Link |
+|----------|------|
+| **Previous Dataset (v2)** | [COINjecture/NP_Solutions_v2](https://huggingface.co/datasets/COINjecture/NP_Solutions_v2) |
+| **Legacy Dataset** | [COINjecture/NP_Solutions](https://huggingface.co/datasets/COINjecture/NP_Solutions) |
+| **Source Code** | [GitHub](https://github.com/beanapologist/COINjecture-NetB-Updates) |
+| **Whitepaper** | [COINjecture.com](https://coinjecture.com) |
+| **Network Explorer** | Coming Soon |
+
+---
+
+## 🤝 Contributing
+
+We welcome contributions to improve data quality and documentation. Please open an issue or pull request on our GitHub repository.
+
+---
+
+**Built with 💎 by the COINjecture Network**
+
+*Transforming computational waste into useful work*
+
+*η = λ = 1/√2*
+