Network parameters

The settings the mainnet chain carries itself, set in contracts by the network's administrators, and the addresses that may act as scrapers. Only the contracts the wallet applies count: an old-style contract needs the master key's signature.

Latest change 2026-06-01, blocks 3 990 094 to 3 990 096: Magnitude weight factor, Magnitude unit and Constant block reward

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Block reward

76.29 GRC

for every stake

Magnitude unit

1.0305

GRC a day per magnitude

Magnitude weight

0.618034

in polls

Scrapers

authorised of 10

3 settings were once given a value the wallet cannot read: running nodes ignored it and kept the setting they had. They are marked with a diamond.

The key TEAM_WHITELILST is read by no rule of the wallet, and is only in contracts from before block 2 053 000 (version 11).

Rewards 2

What a stake and a magnitude earn

Constant block rewardblockreward1

Set 2026-06-015 months ago

76.29373193 GRCdefault 10 GRC

1 change
What it does

The reward of every stake, beside any research reward, in Halford (1/100 000 000 GRC). A block takes the newest entry from at or before the time of the block before it.

Default
10 GRC

Limits
from block version 13: 0 to 500 GRC; before: 0 to 20 GRC (a value outside is clamped; one that is not a number leaves the default)
1 change, newest first
1. 2026-06-01 76.29373193 GRC in forcethe first value block 3 990 094
  contract
Magnitude unitmagnitudeunit

Set 2026-06-015 months ago

1.0305103050/100000, default 1/4

1 change
What it does

How many GRC a day one unit of magnitude earns as research reward: the accrual of a CPID is its magnitude times this unit. A superblock takes the newest entry from at or before its time, so a change counts from the next superblock. From block version 13.

Default
1/4 (0.25 GRC a day per magnitude)

Limits
at most 5 (clamped)
1 change, newest first
1. 2026-06-01 103050/100000 (1.0305) in forcethe first value block 3 990 094
  contract

Polls 1

How a magnitude weighs in a vote

Magnitude weight factormagnitudeweightfactor

Set 2026-06-015 months ago

0.618034618034/1000000, default 100/567

1 change
What it does

How much a magnitude weighs in a poll that counts magnitude and balance: each unit of magnitude counts as the money supply divided by the network's magnitude, times this factor, in GRC. A poll takes the newest entry from at or before its start. From block version 13; before, the factor is 100/567.

Default
100/567

Limits
1/10 to 1 (clamped)
1 change, newest first
1. 2026-06-01 618034/1000000 (0.618034) in forcethe first value block 3 990 096
  contract

Teams 2

Whose BOINC credit the scrapers count

Team whitelistTEAM_WHITELIST

Since 2024-01-10in effect for 2 years

9 teamsdefault Gridcoin

17 changes
Team membership requiredREQUIRE_TEAM_WHITELIST_MEMBERSHIP

Since 2020-10-04in effect for 6 yearsonce unreadable

falsedefault false

14 changes
What it does

Whether a CPID must be in a team of the whitelist for the scrapers to count its credit. A wallet choosing its own CPID reads it otherwise: anything but false, and a missing entry, means membership is required.

Default
false (for the scrapers)
14 changes, newest first
1. 2022-02-18 false in forceset again 5 times with the same value, the last on 2024-01-10 block 2 501 171
  contract
2. 2022-02-18 FALSEnot true, false, 1 or 0: the wallet keeps the setting it had block 2 501 122
  contract
3. 2020-10-04 falseset again 2 times with the same value, the last on 2021-08-21 block 2 053 006
  contract
4. 2019-03-18 truethe first value; set again 3 times with the same value, the last on 2020-09-02 block 1 546 837
  contract

Scrapers 3

How the statistics reach the superblock

Projects with an external adapterEXTERNAL_ADAPTER_PROJECTS

Since 2023-01-15in effect for 3 years

1 projectfolding@home; default none

3 changes
What it does

The projects whose statistics the scrapers read through an external adapter instead of the project's own files, separated by |.

Default
none
3 changes, newest first
1. 2023-01-15 added folding@homethe first list; set again 2 times with the same value, the last on 2024-01-10 block 2 795 673
  contract
Ban score of a misbehaving scraper nodeSCRAPER_MISBEHAVING_NODE_BANSCORE

Since 2019-03-31in effect for 7 yearsonce unreadable

20default 0

13 changes
What it does

The ban score a node gets for sending scraper statistics it should not send (once the grace period is over).

Default
0
13 changes, newest first
1. 2020-03-14 20 in forceset again 8 times with the same value, the last on 2024-01-10 block 1 871 526
  contract
2. 2020-03-12 truenot a whole number from 0 to 4 294 967 295: the wallet keeps the setting it had block 1 870 541
  contract
3. 2019-09-15 20 block 1 711 911
  contract
4. 2019-09-15 truenot a whole number from 0 to 4 294 967 295: the wallet keeps the setting it had block 1 711 903
  contract
5. 2019-03-31 20the first value block 1 560 299
  contract
Statistics download by other nodesALLOW_NONSCRAPER_NODE_STATS_DOWNLOAD

Since 2022-02-18in effect for 4 yearsonce unreadable

falsedefault false

6 changes
What it does

Whether a node that is not an authorised scraper may download the project statistics itself.

Default
false
6 changes, newest first
1. 2022-02-18 false in forceset again 3 times with the same value, the last on 2023-07-14 block 2 501 178
  contract
2. 2022-02-18 true block 2 501 174
  contract
3. 2022-02-18 FALSEnot true, false, 1 or 0: the wallet keeps the setting it hadthe first value block 2 501 122
  contract

Keys the wallet does not read 1

Set on the chain, used by no rule

TEAM_WHITELILSTset on the chain, read by no rule

Removed 2020-09-026 years ago

Removedno rule reads it †

2 changes
What it does

A key the wallet does not read: it is set on the chain, and no rule uses it.

Older wallets
† All its contracts are from before block 2 053 000 (version 11): a wallet that built its register from there, as one does after an upgrade, does not list it.
2 changes, newest first
1. 2020-09-02 removed block 2 024 330
  contract
2. 2020-06-15 Gridcoin<>The Final Front Ear<>GPU Users Group<>UK BOINC Team<>Richard Dawkins Foundation for Reason and Science<>[H]ard|OCP<>/r/Covid19<>/r/covid19<>Rechenkraft.net<>|Gridcoin|The Final Front Ear|GPU Users Group|UK BOINC Team|Richard Dawkins Foundation for Reason and Science|/r/Covid19|/r/covid19|Rechenkraft.netthe first value block 1 954 725
  contract

A diamond marks a value the wallet could not read. Open a parameter to see what it does and each change.