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Comparison of rice supervision methods.
| Mode type | Coverage | Regulatory cost | Waste time | Regulatory credibility | Regulatory efficiency | Regulatory environment |
|---|---|---|---|---|---|---|
| Traditional supervision | Single link | High | High | Low | Low | Untrustworthy |
| Based on blockchain supervision | Full life cycle | Medium | Medium | Medium | Medium | Credible |
| Based on smart contract and blockchain supervision | Full life cycle | Low | Low | High | High | Credible |
