Attestations for a slot

curl --request GET \
  --url 'https://beaconcha.in/api/v1/slot/{slot}/attestations?apikey='

{
  "status": "OK",
  "data": [
    {
      "aggregationbits": "0xff",
      "beaconblockroot": "0x94677296757527ccfd5849a6c07d179a9ed783a771c7bb305b9b9350fffd97d0",
      "block_index": 1,
      "block_root": "0xfa4349ae9843b52cd7e9ff42e43deaf3a9220c0ae3f3dd64da9c2c97544dfd4c",
      "block_slot": 12751688,
      "committeeindex": 1,
      "signature": "0xaa",
      "slot": 12751687,
      "source_epoch": 398489,
      "source_root": "0x1c2bfaa61c0f5f7a8f8e3a16f6d0f1d4b3f2a1c0b9a8d7c6e5f4d3c2b1a0f9e8",
      "target_epoch": 398490,
      "target_root": "0x88f88f748227a397a09a7b8cbe13dab1d0411950993e618fc7a6d76d1d7d0c76",
      "validators": [
        0,
        1,
        2,
        3
      ]
    }
  ]
}

GET

api

slot

{slot}

attestations

Attestations for a slot

curl --request GET \
  --url 'https://beaconcha.in/api/v1/slot/{slot}/attestations?apikey='

{
  "status": "OK",
  "data": [
    {
      "aggregationbits": "0xff",
      "beaconblockroot": "0x94677296757527ccfd5849a6c07d179a9ed783a771c7bb305b9b9350fffd97d0",
      "block_index": 1,
      "block_root": "0xfa4349ae9843b52cd7e9ff42e43deaf3a9220c0ae3f3dd64da9c2c97544dfd4c",
      "block_slot": 12751688,
      "committeeindex": 1,
      "signature": "0xaa",
      "slot": 12751687,
      "source_epoch": 398489,
      "source_root": "0x1c2bfaa61c0f5f7a8f8e3a16f6d0f1d4b3f2a1c0b9a8d7c6e5f4d3c2b1a0f9e8",
      "target_epoch": 398490,
      "target_root": "0x88f88f748227a397a09a7b8cbe13dab1d0411950993e618fc7a6d76d1d7d0c76",
      "validators": [
        0,
        1,
        2,
        3
      ]
    }
  ]
}

Authorizations

apikey

string

query

required

Path Parameters

slot

required

The slot to fetch. Provide an integer slot number (>= 0) or the special tag latest for the most recently processed slot. Slot number (>= 0)

Required range: x >= 0

Example:

12751688

Response

The slot was found and its attestations are returned in the data array. If the slot has no attestations, the array is empty.

Standard success envelope used by all API endpoints.

status

enum<string>

HTTP-independent status of the API operation. For successful responses this is always "OK".

Available options:

OK

data

object[]

Response payload specific to the endpoint.

Show child attributes

data.aggregationbits

string

Bitfield indicating which committee members participated in this attestation. Encoded as 0x-prefixed hexadecimal representing the SSZ bitlist; one bit per member (1 = participated).

Example:

"0xff"

data.beaconblockroot

string

Root of the beacon block being voted on (head block) as referenced by the attestation data (0x-prefixed, 32-byte hex).

Example:

"0x94677296757527ccfd5849a6c07d179a9ed783a771c7bb305b9b9350fffd97d0"

data.block_index

integer

Zero-based index of this attestation within the including block’s attestation list.

Example:

1

data.block_root

string

Root of the beacon block that included this attestation (0x-prefixed, 32-byte hex).

Example:

"0xfa4349ae9843b52cd7e9ff42e43deaf3a9220c0ae3f3dd64da9c2c97544dfd4c"

data.block_slot

integer

Slot number of the block that included this attestation.

Example:

12751688

data.committeeindex

integer

Committee index within the epoch for the attestation’s slot (>= 0).

Required range: x >= 0

Example:

1

data.signature

string

Aggregated BLS signature over the attestation data (96 bytes; 0x-prefixed hex with 192 hex characters).

Example:

"0xaa"

data.slot

integer

Slot that this attestation attests to (attestation data slot).

Example:

12751687

data.source_epoch

integer

Source checkpoint epoch of the attestation (>= 0).

Required range: x >= 0

Example:

398489

data.source_root

string

Root of the source checkpoint (0x-prefixed, 32-byte hex).

Example:

"0x1c2bfaa61c0f5f7a8f8e3a16f6d0f1d4b3f2a1c0b9a8d7c6e5f4d3c2b1a0f9e8"

data.target_epoch

integer

Target checkpoint epoch of the attestation (>= 0).

Required range: x >= 0

Example:

398490

data.target_root

string

Root of the target checkpoint (0x-prefixed, 32-byte hex).

Example:

"0x88f88f748227a397a09a7b8cbe13dab1d0411950993e618fc7a6d76d1d7d0c76"

data.validators

integer[]

List of validator indices whose signatures are included in this aggregated attestation.

Required range: x >= 0

Example:

[0, 1, 2, 3]

Slot overview

Attester slashings for a slot

Introduction

API Docs

Attestations for a slot

Authorizations

Path Parameters

Response