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gajinder 2023-05-20 19:35:22 +05:30
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3
specs/deneb/beacon-chain.md
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@ -40,6 +40,8 @@
This upgrade adds blobs to the beacon chain as part of Deneb. This is an extension of the Capella upgrade.
The blob transactions are packed into the execution payload by the EL/builder with their corresponding blobs being independently transmitted and are limited by `MAX_DATA_GAS_PER_BLOCK // DATA_GAS_PER_BLOB`. However the CL limit is independently defined by `MAX_BLOBS_PER_BLOCK`.
## Custom types
| Name | SSZ equivalent | Description |
@ -69,6 +71,7 @@ This upgrade adds blobs to the beacon chain as part of Deneb. This is an extensi
| Name | Value |
| - | - |
| `MAX_BLOB_COMMITMENTS_PER_BLOCK` | `uint64(2**12)` (= 4096) | hardfork independent fixed theoretical limit same as `LIMIT_BLOBS_PER_TX` (see EIP 4844) |
| `MAX_BLOBS_PER_BLOCK` | `uint64(2**2)` (= 4) | Maximum number of blobs in a single block limited by `MAX_BLOB_COMMITMENTS_PER_BLOCK` |
## Configuration

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specs/deneb/p2p-interface.md
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@ -43,7 +43,6 @@ The specification of these changes continues in the same format as the network s
| Name | Value | Description |
|------------------------------------------|-----------------------------------|---------------------------------------------------------------------|
| `MAX_REQUEST_BLOCKS_DENEB` | `2**7` (= 128) | Maximum number of blocks in a single request |
| `MAX_BLOBS_PER_BLOCK` | `2**2` (= 4) | Maximum number of blobs in a single request, can never exceed `MAX_BLOB_COMMITMENTS_PER_BLOCK` limit |
| `MAX_REQUEST_BLOB_SIDECARS` | `MAX_REQUEST_BLOCKS_DENEB * MAX_BLOBS_PER_BLOCK` | Maximum number of blob sidecars in a single request |
| `MIN_EPOCHS_FOR_BLOB_SIDECARS_REQUESTS` | `2**12` (= 4096 epochs, ~18 days) | The minimum epoch range over which a node must serve blob sidecars |
@ -120,7 +119,7 @@ The *type* of the payload of this topic changes to the (modified) `SignedBeaconB
###### `blob_sidecar_{subnet_id}`
This topic is used to propagate signed blob sidecars, where each blob index maps to some `subnet_id`. However the actual blobs that will be generated by the EL will be limited by `MAX_DATA_GAS_PER_BLOCK // DATA_GAS_PER_BLOB` and will require an EL hardfork to upgrade the limit.
This topic is used to propagate signed blob sidecars, where each blob index maps to some `subnet_id`.
The following validations MUST pass before forwarding the `signed_blob_sidecar` on the network, assuming the alias `sidecar = signed_blob_sidecar.message`: