Proposal 135414 Review | Lorimer - CO.DELTA △
VOTE: YES
TLDR: 2 offline nodes replaced with unassigned nodes. Decentralisation metrics are slightly improved in terms of the diversity of countries in the subnet. One of the nodes being replaced is a DFINITY node (necessarily replaced by another DFINITY node).
There are some country discrepancies, but the locations are very close to each other. In the future I may add a degree of tolerance before considering highlighting as a warning.
Country Discrepancies (3)
Decentralisation Stats
Subnet node distance stats (distance between any 2 nodes in the subnet) →
| Smallest Distance | Average Distance | Largest Distance | |
|---|---|---|---|
| EXISTING | 224.918 km | 6586.338 km | 16654.257 km |
| PROPOSED | 224.918 km | 6636.172 km (+0.8%) | 16654.257 km |
This proposal slightly increases decentralisation, considered purely in terms of geographic distance (and therefore there’s a slight theoretical increase in localised disaster resilience). 
Subnet characteristic counts →
| Continents | Countries | Data Centers | Owners | Node Providers | Node Operator | |
|---|---|---|---|---|---|---|
| EXISTING | 3 | 11 | 13 | 13 | 13 | 13 |
| PROPOSED | 3 | 12 (+8.3%) | 13 | 13 | 13 | 13 |
This proposal slightly improves decentralisation in terms of jurisdiction diversity.
Largest number of nodes with the same characteristic (e.g. continent, country, data center, etc.) →
| Continent | Country | Data Center | Owner | Node Provider | Node Operator | |
|---|---|---|---|---|---|---|
| EXISTING | 7 | 2 | 1 | 1 | 1 | 1 |
| PROPOSED | 7 | 2 | 1 | 1 | 1 | 1 |
See here for acceptable limits → Motion 132136
The above subnet information is illustrated below, followed by a node reference table:
Map Description
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Red marker represents a removed node (transparent center for overlap visibility)
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Green marker represents an added node
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Blue marker represents an unchanged node
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Highlighted patches represent the country the above nodes sit within (red if the country is removed, green if added, otherwise grey)
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Light grey markers with yellow borders are examples of unassigned nodes that would be viable candidates for joining the subnet according to formal decentralisation coefficients (so this proposal can be viewed in the context of alternative solutions that are not being used)
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Black dotted line connects to a small black marker that shows where the IP address indicates the node is located (according to
ipinfo.io). This is only displayed if it conflicts with where IC records indicate the node is located. See Country Discrepancies section above for more info.
Node Changes
| Action | Node | Status | Continent | Country | Data Center | Owner | Node Provider | Node Operator | |
|---|---|---|---|---|---|---|---|---|---|
| Remove |  |
||||||||
| Remove | |
||||||||
| Add | ehorg | UNASSIGNED | |
North America | Canada | Vancouver (bc1) | Cyxtera | Blockchain Development Labs | feb2q |
| Add | wl27x | UNASSIGNED | |
Europe | Switzerland | Zurich 2 (zh2) | Everyware | DFINITY Stiftung | db7fe |
Other Nodes
| Node | Status | Continent | Country | Data Center | Owner | Node Provider | Node Operator | |
|---|---|---|---|---|---|---|---|---|
| ek3yy | UP | |
Europe | Belgium | Brussels (br1) | Digital Realty | Allusion | mjeqs |
| hgvcj | UP | |
Europe | Switzerland | Geneva 2 (ge2) | SafeHost | Archery Blockchain SCSp | 5atxd |
| 2mmpk | UP | |
Europe | Spain | Madrid 3 (ma3) | IPCore | Maksym Ishchenko | wtsc7 |
| jemyk | UP | |
Asia | Hong Kong | HongKong 1 (hk1) | Unicom | Wancloud limited | z6cfb |
| tfw5b | UP | |
Asia | Japan | Tokyo (ty1) | Equinix | Starbase | cqjev |
| qtcl6 | UP | |
Asia | Korea (the Republic of) | Seoul 3 (kr1) | KT | Pindar Technology Limited | iubpe |
| ax6zb | UP | |
Europe | Lithuania | Vilnius 1 (bt1) | Baltneta | Ivanov Oleksandr | y3du2 |
| wihnn | UP | |
Europe | Romania | Bucharest (bu1) | M247 | Iancu Aurel | c5ssg |
| 3fgii | UP | |
Asia | Singapore | Singapore (sg1) | Telin | OneSixtyTwo Digital Capital | d4bin |
| dnorv | UP | |
Europe | Slovenia | Ljubljana 2 (lj2) | Anonstake | Anonstake | eu5wc |
| 7vdar | UP | |
North America | United States of America (the) | Orlando (or1) | Datasite | Giant Leaf, LLC | 2rqo7 |
You may wish to follow the CO.DELTA known neuron (coming soon) if you found this analysis helpful.
CO.DELTA △
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Note that this analysis involved data provided by the IC-API, which is not open source. I’m in the process of switching over to more verifiable sources of this sort of information for future proposal reviews. See here for related discussion.