GET
/
0a9d79d93fb2f4a4b1e04695da2b77a7
/
eth
/
v1
/
beacon
/
states
/
{state_id}
/
fork
curl --request GET \
  --url https://beacon-nd-422-757-666.p2pify.com/0a9d79d93fb2f4a4b1e04695da2b77a7/eth/v1/beacon/states/{state_id}/fork
{

  "epoch": "string",

  "previous_version": "string",

  "current_version": "string"

}

get https\://beacon-nd-422-757-666.p2pify.com/0a9d79d93fb2f4a4b1e04695da2b77a7/eth/v1/beacon/states/\{state\_id}/fork

​
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​
Parameters

  • state_id — the identifier for the state for which fork information is being requested. The state_id can be:

    • head — represents the latest canonical state in the node’s view.
    • genesis — refers to the state at the genesis or the start of the Beacon Chain.
    • finalized — the state that is finalized and accepted by the network with minimal likelihood of reorganization.
    • justified — a state that has recently achieved justification, which is a precursor to finalization in the Ethereum 2.0 proof of stake mechanism.
    • <slot> — specific slot number in the Ethereum 2.0 protocol timeline.
    • <hex encoded stateroot with 0x prefix> — the specific state root of interest, encoded in hexadecimal format.

​
Path Params

​
state_id
string
default:"head"
required

State identifier which can be a slot number, an epoch number, a block root, or special values like ‘genesis’ or ‘head’.

​
Response

The response is an object containing the following fields:

  • execution_optimistic — a boolean indicating if the response is based on an unverified execution payload. If trueimplies that the payload might be invalidated later. The absence of this field implies a default value of false.

  • finalized — a boolean indicating if the response pertains to the finalized history of the chain. If absent, it suggests the need for additional calls to determine the epoch’s relation to the finalized checkpoint.

  • data — an object containing:

    • previous_version — a hexadecimal string representing the fork version of the state before the current fork.
    • current_version — a hexadecimal string indicating the fork version of the current state.
    • epoch — the epoch number at which the current version was adopted.

​
200

Successful response with fork information

​
epoch
string

The epoch number at which the current version was applied.

​
previous_version
string

The previous fork version.

​
current_version
string

The current fork version.

​
400

Invalid state identifier value

​
code
integer
​
message
string
​
stacktraces
string[]
{

  "epoch": "string",

  "previous_version": "string",

  "current_version": "string"

}