Table 5.
System’s Development Level.
| Solutions | Theory | Simulation | Prototype | Pre-Product | Product |
|---|---|---|---|---|---|
| TransActive Grid [10] | - | - | - | - | ✓ |
| Filament [59] | - | - | - | - | ✓ |
| Slock.it [13] | - | - | - | - | ✓ |
| PriWatt [60] | ✓ | - | - | - | - |
| BPIIoT [62] | - | - | ✓ | - | - |
| IBM Adept [64] | ✓ | - | - | - | - |
| Cha et al. [65] | - | - | ✓ | - | - |
| Dorri et al. [67,68] | - | - | ✓ | - | - |
| CertCoin [69,110] | - | - | ✓ | - | - |
| ChainAnchor [71] | - | - | ✓ | - | - |
| Hashemi et al. [72] | - | - | ✓ | - | - |
| Huh et al. [74] | ✓ | - | - | - | - |
| IBM Hyperledger [75,76] | - | - | - | ✓ | - |
| IOTA (TANGLE) [82,83] | - | - | - | ✓ | - |
| Sikorski et al. [86] | ✓ | - | - | - | - |
| Storj [87] | - | - | - | ✓ | - |
| Sapphire [89] | - | - | ✓ | - | - |
| Enigma [91,111] | - | - | - | - | ✓ |
| Moeco [93] | - | - | - | - | ✓ |