Proposal 135425 Review | Lorimer - CO.DELTA △
VOTE: YES
TLDR: 1 offline node replaced with an unassigned node, which also improves decentralisation in terms of the country IC Target Topology metric (once this proposal executes there will be 1 node per country, instead of a max of 2).
Country Discrepancies (2)
There a relatively large country discrepancy (in terms of distance). Given that ipinfo.io uses a probe network for geolocation, I’m surprised to see such a large discrepancy. Something to revisit (given that the node in question isn’t directly affected by this proposal).
| Node | Data Center | Claimed Country | According to ipinfo.io |
|---|---|---|---|
| 2h6dm | Toronto 2 | Canada | United States of America (the) |
| najnj | Brussels 2 | Belgium | United Kingdom of Great Britain and Northern Ireland (the) |
Decentralisation Stats
Subnet node distance stats (distance between any 2 nodes in the subnet) →
| Smallest Distance | Average Distance | Largest Distance | |
|---|---|---|---|
| EXISTING | 382.312 km | 5833.193 km | 16458.534 km |
| PROPOSED | 382.312 km | 5867.807 km (+0.6%) | 16024.773 km (-2.6%) |
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 | 12 | 13 | 13 | 13 | 13 |
| PROPOSED | 3 | 13 (+7.7%) | 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 | 8 | 2 | 1 | 1 | 1 | 1 |
| PROPOSED | 8 | 1 (-50%) | 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 |  |
||||||||
| Add | 4nkoi | UNASSIGNED | |
Asia | Korea (the Republic of) | Seoul 1 (sl1) | Megazone Cloud | Neptune Partners | ukji3 |
Other Nodes
| Node | Status | Continent | Country | Data Center | Owner | Node Provider | Node Operator | |
|---|---|---|---|---|---|---|---|---|
| najnj | UP | |
Europe | Belgium | Brussels 2 (br2) | AtlasEdge | Allusion | oorkg |
| 2h6dm | UP | |
North America | Canada | Toronto 2 (to2) | Cyxtera | Blockchain Development Labs | 4lp6i |
| kdowl | UP | |
Europe | Switzerland | Zurich 6 (zh6) | Green.ch | Sygnum Bank | ciprs |
| kwict | UP | |
Europe | Czechia | South Moravian Region 1 (bn1) | Master Internet | Bohatyrov Volodymyr | sjstt |
| oiso5 | UP | |
Europe | Spain | Madrid 3 (ma3) | IPCore | Vladyslav Popov | f4rto |
| ktqjk | UP | |
Asia | Japan | Tokyo (ty1) | Equinix | Starbase | cqjev |
| qzvif | UP | |
Europe | Poland | Warszawa 3 (wa3) | DataHouse | Artem Horodyskyi | ngpk7 |
| 7agd5 | UP | |
Europe | Romania | Bucharest (bu1) | M247 | Iancu Aurel | c5ssg |
| ozim4 | UP | |
Europe | Sweden | Stockholm 1 (sh1) | Digital Realty | DFINITY Stiftung | lgp6d |
| jvqnq | UP | |
Asia | Singapore | Singapore (sg1) | Telin | OneSixtyTwo Digital Capital | d4bin |
| 5zqhj | UP | |
Europe | Slovenia | Ljubljana 2 (lj2) | Anonstake | Anonstake | eu5wc |
| cvic3 | UP | |
North America | United States of America (the) | Atlanta 2 (at2) | Datasite | BLP22, LLC | 5syyj |
You may wish to follow the CO.DELTA known neuron (coming soon) if you found this analysis helpful.
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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.