Network parameters

The settings the testnet 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 2025-06-01, block 2 872 397: Projects with an external adapter

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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 17

2 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 foo is read by no rule of the wallet.

Rewards 2

What a stake and a magnitude earn

Constant block rewardblockreward1

Since 2025-05-30unchanged for 1 year

76.29373193 GRCdefault 10 GRC

4 changes
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)
4 changes, newest first
1. 2025-05-30 76.29373193 GRC in force block 2 871 383
  contract
2. 2025-05-30 149.37702363 GRC block 2 871 279
  contract
3. 2018-08-04 10 GRC block 631 664
  contract
4. 2018-08-04 0.0000001 GRCthe first value block 631 661
  contract
Magnitude unitmagnitudeunit

Since 2025-05-30unchanged for 1 year

1.0305103050/100000, default 1/4

2 changes
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)
2 changes, newest first
1. 2025-05-30 103050/100000 (1.0305) in force block 2 871 386
  contract
2. 2025-05-30 201765/100000 (2.01765)the first value block 2 871 279
  contract

Polls 1

How a magnitude weighs in a vote

Magnitude weight factormagnitudeweightfactor

Set 2025-05-301 year 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. 2025-05-30 618034/1000000 (0.618034) in forcethe first value block 2 871 279
  contract

Teams 2

Whose BOINC credit the scrapers count

Team whitelistTEAM_WHITELIST

Since 2024-01-10in effect for 2 years

9 teamsdefault Gridcoin

23 changes
Team membership requiredREQUIRE_TEAM_WHITELIST_MEMBERSHIP

Since 2020-07-08in effect for 6 yearsonce unreadable

falsedefault false

18 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)
18 changes, newest first
1. 2022-02-18 false in forceset again 4 times with the same value, the last on 2024-01-10 block 1 815 193
  contract
2. 2022-02-18 FALSEnot true, false, 1 or 0: the wallet keeps the setting it had block 1 815 139
  contract
3. 2020-07-08 falseset again 3 times with the same value, the last on 2021-08-21 block 1 295 435
  contract
4. 2019-08-10 trueset again 2 times with the same value, the last on 2020-03-12 block 989 321
  contract
5. 2019-08-10 false block 989 308
  contract
6. 2019-07-28 true block 977 562
  contract
7. 2019-05-11 false block 906 778
  contract
8. 2019-05-11 removed block 906 765
  contract
9. 2019-01-30 truethe first value block 802 219
  contract

Scrapers 4

How the statistics reach the superblock

Projects with an external adapterEXTERNAL_ADAPTER_PROJECTS

Removed 2025-06-011 year ago

Removeda running node keeps the value it had, the default once it starts again: none

5 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
5 changes, newest first
1. 2025-06-01 removed block 2 872 397
  contract
2. 2023-01-13 added folding@homethe first list; set again 3 times with the same value, the last on 2024-01-10 block 2 103 961
  contract
Ban score of a misbehaving scraper nodeSCRAPER_MISBEHAVING_NODE_BANSCORE

Since 2019-03-31in effect for 7 years

20default 0

11 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
11 changes, newest first
1. 2019-03-31 20 in forcethe first value; set again 10 times with the same value, the last on 2024-01-10 block 861 373
  contract
Statistics download by other nodesALLOW_NONSCRAPER_NODE_STATS_DOWNLOAD

Since 2019-01-14in effect for 7 yearsonce unreadable

truedefault false

13 changes
What it does

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

Default
false
13 changes, newest first
1. 2022-02-18 true in forceset again 4 times with the same value, the last on 2024-01-10 block 1 815 190
  contract
2. 2022-02-18 TRUEnot true, false, 1 or 0: the wallet keeps the setting it had block 1 815 139
  contract
3. 2019-01-14 truethe first value; set again 6 times with the same value, the last on 2021-08-21 block 785 402
  contract
Scraper start before a superblockactivebeforesb

Since 2021-10-03in effect for 5 years

14400default 14400

7 changes
What it does

How many seconds before a superblock is due the scrapers start to read the statistics.

Default
14400 (4 hours)
7 changes, newest first
1. 2021-10-03 14400 in forceset again 5 times with the same value, the last on 2024-01-10 block 1 694 326
  contract
2. 2021-10-03 86400the first value block 1 694 314
  contract

Keys the wallet does not read 1

Set on the chain, used by no rule

fooset on the chain, read by no rule

Removed 2024-04-102 years ago

Removedno rule reads it

4 changes
What it does

A key the wallet does not read: it is set on the chain, and no rule uses it.
4 changes, newest first
1. 2024-04-10 removed block 2 499 023
  contract
2. 2024-04-10 hello block 2 499 020
  contract
3. 2023-06-11 removed block 2 233 271
  contract
4. 2023-06-11 barthe first value block 2 233 217
  contract

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