> For the complete documentation index, see [llms.txt](https://cosmics-organization-2.gitbook.io/mind-mosaic-whitepaper/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cosmics-organization-2.gitbook.io/mind-mosaic-whitepaper/1.-the-era-of-ai-big-model-the-dilemma-of-data-collection-and-systematic-breakthrough/1.2-technical-framework-for-reconstructing-data-production-factors.md).

# 1.2 Technical framework for reconstructing data production factors

Decentralized Physical Infrastructure Network (DePIN) has built a new paradigm of "distributed supply of hardware resources - data value chain circulation - contributor equity atomic settlement" through the integration of blockchain and cryptography technology. Its core architecture includes three levels:

## 1.2.1 Physical Layer

By combining improved IoT protocols with hardware security technology, DePIN builds a digital twin authentication system for the physical world:

* **Device Fingerprint Matrix**

Use TEE (Trusted Execution Environment) and ARM TrustZone technology to generate a hardware-unique identity ID (the original Intel SGX statement needs to be revised because the ARM architecture has a higher market share in IoT devices).\
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Integrate 20-dimensional features such as device MAC address, sensor calibration parameters, crystal oscillator deviation value, etc., and implement identity authentication through zero-knowledge proof (ZKP). ZKP verification takes less than 15ms (hardware acceleration support is required).

* **Anti-Sybil Attack Mechanism**

Proof of Spatial Timestamp (PoST) requires devices to submit geo-coordinate signatures every 5 minutes, combined with environmental noise fingerprints (such as Wi-Fi channel status) to improve positioning accuracy.\
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The workload decay function (WD-Function) dynamically adjusts the reward coefficient to suppress virtual machine impersonation. The practice of the Helium network shows that this mechanism keeps the probability of successful witch attacks below 0.0007%, which is much lower than the average level of 2.3% of traditional IoT networks.\
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The Hardware Trusted Score (HTS) system monitors abnormal device behavior in real time and automatically triggers on-chain stake deductions when the threshold is triggered.\
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**Practice verification:** Helium network's distributed wireless network has connected 980,000 hotspot devices (data as of Q3 2024), with a node geographical distribution density of 3.7 per square kilometer (North American urban areas), and a network availability of 99.2% (needs to be combined with the characteristics of the LoRaWAN protocol).

## 1.2.2 Protocol Layer

The PoPW (Physical Proof of Work) consensus mechanism introduced by DePIN enables accurate measurement of physical resource contributions:

* **Proof of Storage (PoS) Optimization**

Introducing the Merkle-Patricia tree structure (the original "Merkle forest" is inaccurate), compressing the storage verification time from minutes to seconds.\
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The use of spatiotemporal data sharding (ST-Fragmentation) combined with erasure coding technology can increase storage efficiency to 82% (Filecoin official data shows).\
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The dynamic redundancy algorithm automatically adjusts the number of copies (3-7 copies) according to the data type, and Reed-Solomon encoding is used for cold data to optimize storage overhead.

* **Proof of Computing Power (PoC) Breakthrough**

Develop a heterogeneous computing unified instruction set (HCU-ISA) that is compatible with CPU/GPU/NPU and other architectures (FPGA is rarely used in mobile devices due to power consumption issues).\
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The task scheduler supports millisecond-level fine-grained segmentation (the minimum computing unit is 0.01CU, 1CU≈10^9 operations), and combines with TEE to ensure that the computing process is verifiable and data is not leaked.\
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**Practice verification:** Through the combined use of Proof of Storage (PoS) and Proof of Spacetime (PoST), Filecoin has increased the utilization rate of distributed storage resources from 18% in the centralized era to 78% (combined with fluctuations in storage market supply and demand).

## 1.2.3 Incentive layer

DePIN projects usually adopt a dual token model:\
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**A.** Utility Token: used to pay for network services, with prices anchored to the supply and demand of resource markets, and an elastic supply mechanism to cope with fluctuations.\
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**B.** Governance Token: Through the veToken model, the rights and interests of long-term contributors are bound to reduce speculative fluctuations. Some projects introduce the Work Staking mechanism to enhance stability.\
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**Industry Forecast**: Messari's "2025 DePIN Development Report" predicts that by 2027, DePIN will connect 680 million smart devices worldwide (taking into account the device life cycle), forming a distributed means of production network worth US$3.2 trillion (this valuation includes ecological derivative value), and building a decentralized digital infrastructure for the AGI era.