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tempo_forkSchedule RPC Method

Returns the Tempo fork schedule and the currently active fork at the chain head, including each fork's activation timestamp and EIP-2124 fork hash.

Updated on
Jun 15, 2026

Parameters

This method does not accept any parameters

Returns

result
object

An object describing the fork schedule and the currently active fork

schedule
array

An ordered list of Tempo forks

name
string

The fork name (e.g., T0, T1, T1A, T1B, T1C, T2, T3)

activationTime
integer

The Unix timestamp (in seconds) at which the fork activates. A value of 0 indicates the fork was active at genesis or has not been scheduled yet

active
boolean

Whether the fork is active at the current chain head

forkId
string

The EIP-2124 fork hash, encoded as a hexadecimal string (e.g., 0x471a451c). Omitted for forks that are not yet active

active
string

The name of the currently active fork at the chain head

Request
Response
1
{
2
"jsonrpc": "2.0",
3
"id": 1,
4
"result": {
5
"schedule": [
6
{
7
"name": "T0",
8
"activationTime": 0,
9
"active": true,
10
"forkId": "0xfde57c3e"
11
},
12
{
13
"name": "T1",
14
"activationTime": 1770908400,
15
"active": true,
16
"forkId": "0x9e6fe384"
17
},
18
{
19
"name": "T1A",
20
"activationTime": 1770908400,
21
"active": true,
22
"forkId": "0x9e6fe384"
23
},
24
{
25
"name": "T1B",
26
"activationTime": 1771858800,
27
"active": true,
28
"forkId": "0x73a4f670"
29
},
30
{
31
"name": "T1C",
32
"activationTime": 1773327600,
33
"active": true,
34
"forkId": "0x2a3ee80d"
35
},
36
{
37
"name": "T2",
38
"activationTime": 1774965600,
39
"active": true,
40
"forkId": "0x471a451c"
41
},
42
{
43
"name": "T3",
44
"activationTime": 1777298400,
45
"active": true,
46
"forkId": "0xd2087b77"
47
}
48
],
49
"active": "T3"
50
}
51
}
1
{
2
"jsonrpc": "2.0",
3
"id": 1,
4
"result": {
5
"schedule": [
6
{
7
"name": "T0",
8
"activationTime": 0,
9
"active": true,
10
"forkId": "0xfde57c3e"
11
},
12
{
13
"name": "T1",
14
"activationTime": 1770908400,
15
"active": true,
16
"forkId": "0x9e6fe384"
17
},
18
{
19
"name": "T1A",
20
"activationTime": 1770908400,
21
"active": true,
22
"forkId": "0x9e6fe384"
23
},
24
{
25
"name": "T1B",
26
"activationTime": 1771858800,
27
"active": true,
28
"forkId": "0x73a4f670"
29
},
30
{
31
"name": "T1C",
32
"activationTime": 1773327600,
33
"active": true,
34
"forkId": "0x2a3ee80d"
35
},
36
{
37
"name": "T2",
38
"activationTime": 1774965600,
39
"active": true,
40
"forkId": "0x471a451c"
41
},
42
{
43
"name": "T3",
44
"activationTime": 1777298400,
45
"active": true,
46
"forkId": "0xd2087b77"
47
}
48
],
49
"active": "T3"
50
}
51
}
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