/v1/beacon/states/{state_id}/finality_checkpoints

Returns finality checkpoints for the given state. If finality is not yet achieved, the checkpoint will return epoch 0 and ZERO_HASH as root.

Path parameters

state_idstringRequired

State identifier. Can be one of: head (canonical head in node’s view), genesis, finalized, justified, <slot>, <hex encoded stateRoot with 0x prefix>.

Response

Finality checkpoints for the requested state.

execution_optimisticboolean or null

Whether the execution payload is optimistic.

finalizedboolean or null

Whether the state is finalized.

dataobject or null

1	import requests
2
3	url = "https://eth-mainnetbeacon.g.alchemy.com/v2/docs-demo/eth/v1/beacon/states/head/finality_checkpoints"
4
5	response = requests.get(url)
6
7	print(response.json())

1	{
2	"execution_optimistic": false,
3	"finalized": false,
4	"data": {
5	"previous_justified": {
6	"epoch": "384528",
7	"root": "0x95656528b8dbed879305ffa67ed688f8e262b2dfa5f620e384056f49dec95267"
8	},
9	"current_justified": {
10	"epoch": "384529",
11	"root": "0x352dd41c368cea0c91374483378ce9f65f7a7180ca6fa5e08ae17ca509d19c0c"
12	},
13	"finalized": {
14	"epoch": "384528",
15	"root": "0x95656528b8dbed879305ffa67ed688f8e262b2dfa5f620e384056f49dec95267"
16	}
17	}
18	}