Blockchain is a technology that is increasingly used in the modern world. Its creator is Satoshi Nakamoto, who in 2008 used this technology in cryptocurrencies.

| Category | Benchmarks | Description |
|---|---|---|
| LIFE CYCLE STAGES | Whole life cycle | Benchmark is a value for the whole life cycle of the building. |
| Life cycle phase | Benchmark is a value for individual life cycle phases. | |
| LEVELS OF VALUES | Lowest acceptable value | The limit value is defined as the lowest acceptable value. |
| Present state of the art | The average or median values of the present state of the art. | |
| Best-practice value | The best-practice value that has been reached in building projects. | |
| TOP-DOWN OR BOTTOM-UP | Top-down | Benchmarks are defined based on political targets. |
| Bottom-up | Most of the existing benchmarks are derived from theoretical values. | |
| ABSOLUTE OR RELATIVE VALUES | Absolute values | Benchmarks are defined as fixed values. |
| Relative values | Internal benchmarks are defined according to a reference building. | |
| WHOLE BUILDINGS OR BUILDING ELEMENTS | Whole building | Benchmarks are for the whole building. |
| Building elements | Benchmarks are for the individual building elements. |
| Impact Category | Indicator | Unit | Referecne Method | Conversion Factors | ||
|---|---|---|---|---|---|---|
| CLIMATE CHANGE | Global warming potential for time horizon 100 years | kg CO | 2 | eq | CML | Non Specified: 1 TRACI:1.012 IMPACT 2002+: 1.048 ReCiPe: 0.983 |
| ENERGY DEPLETION | Abiotic depletion of fossil fuel related to the lower heating value | MJ | CML | Non specified: 1 TRACI: 12.672 IMPACT 2002+: 0.958 ReCiPe: 42.748 |
||
| EUTROPHICATION | Eutrophication potential of emission of nutrients | kg PO | 4 | eq | CML | Non specified: 1 TRACI: 0.471 IMPACT 2002+: 10.397 ReCiPe: 3.951 |
| ACIDIFICATION | Acidification potential | kg SO | 2 | eq | CML | Non specified: 1 TRACI: 1.061 IMPACT 2002+: 1.058 ReCiPe: 1.227 |
| OZONE DEPLETION | Ozone depletion potential of different gases |
kg CFC-11 eq | CML | Non specified: 1 TRACI: 0.770 IMPACT 2002+: 1 ReCiPe: 0.159 | ||
| PARTICULATE MATTER | Fine particulate matter equivalent for respiratory inorganics | kg PM | 2.5 | eq | IMPACT 2002+ | Non specified: 1 TRACI: 0.942 ReCiPe: 0.659 |
| HUMAN TOXICITY | Human toxicity potential describing fate, exposure and effects of toxic substances | kg 1,4-DB eq | CML | Non specified: 1 TRACI: N.A. IMPACT 2002+: N.A. ReCiPe: N.A. |


