Blob Archive

Support for Blob Archive ended on March 1, 2025 as part of the deprecation of our Data Archive project. Click here to learn more.

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.