Blob Archive

The Blocknative Blob Archive stores all blobs that enter the mempool (confirmed on-chain or not) in the Ethereum network using our global network of nodes. Given any versionedHash of an on-chain blob, the archive returns the versioned hash, commitment, proof, count of zero-bytes, count of non-zero bytes and blob data. If you only want a summary view of the blob data, the archive can return the response without the full blob data.

Full blob data

Given the versionedHash of an on-chain blob, this will return the commitment, proof, count of zero bytes, count of non-zero bytes and blob data.

GET https://api.ethernow.xyz/v1/blob/{versionedHash}

Example Request

curl --location \
https://api.ethernow.xyz/v1/blob/0x012b7a6a22399aa9eecd8eda6ec658679e81be21af6ff296116aee205e2218f2

Example Response

{
  "blob": {
    "versionedHash": "0x012b7a6a22399aa9eecd8eda6ec658679e81be21af6ff296116aee205e2218f2",
    "commitment": "0xb0afd3a5a67cc9e589a678c13607fc14e71d6ea8be2c4d6822141dc11208595ec65e1ad171bcd6a0e6cfd803e99e4cc0",
    "proof": "0x82010ad855155c39385a6b8d87f88496bede93a16f72fe7ec3c2e40690eb3aee01891ea6800a19643d6fa391d68ef001",
    "zeroBytes": 817,
    "nonZeroBytes": 130254,
    "data": "0x36ba0b....ba"
  }
}

Query Parameters

Name	Type	Description
data	Bool	When data=false, the api will NOT include the blob data

Summary of blob data

Given the versionedHash of an on-chain blob, this will return the commitment, proof, count of zero bytes, and count of non-zero bytes. Blob data will be empty.

GET https://api.ethernow.xyz/v1/blob/{versionedHash}?data=false

Example Request

curl --location \
https://api.ethernow.xyz/v1/blob/0x012b7a6a22399aa9eecd8eda6ec658679e81be21af6ff296116aee205e2218f2?data=false

Example Response

{
  "blob": {
    "versionedHash": "0x012b7a6a22399aa9eecd8eda6ec658679e81be21af6ff296116aee205e2218f2",
    "commitment": "0xb0afd3a5a67cc9e589a678c13607fc14e71d6ea8be2c4d6822141dc11208595ec65e1ad171bcd6a0e6cfd803e99e4cc0",
    "proof": "0x82010ad855155c39385a6b8d87f88496bede93a16f72fe7ec3c2e40690eb3aee01891ea6800a19643d6fa391d68ef001",
    "zeroBytes": 817,
    "nonZeroBytes": 130254,
    "data": ""
  }
}

Description of Terms

Term descriptions come from the official EIP and EIP-4844 website. Please refer to both of these resources for more details on the terms below.

Term	Description
versionedHash	A single 0x01 byte (representing the version) followed by the last 31 bytes of the SHA256 hash of the commitment.
commitment	A hash of the KZG commitment to the polynomial
proof	The KZG commitment of the blob and a KZG proof-of-evaluation
data	The blob data itself where blob data is a vector of 4096 field elements, numbers within the range: 0 <= x < 52435875175126190479447740508185965837690552500527637822603658699938581184513
zeroBytes	The count of used zero bytes in the blob data not including zero padding
nonZeroBytes	The count of used non-zero bytes in the blob data

Questions

If you have any questions please join the Blocknative Mempool Research Telegram channel where our team can provide guidance.