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Fulu BlobSidecarsByRange/Root Deprecation Support #4286

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jtraglia merged 2 commits into from
May 6, 2025
Merged

Fulu BlobSidecarsByRange/Root Deprecation Support #4286

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f6f5587
Fulu BlobSidecarsByRange/Root Deprecation Support
SunnysidedJ Apr 25, 2025
37cf7d8
fix sections + minor things
SunnysidedJ Apr 25, 2025
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26 changes: 26 additions & 0 deletions specs/fulu/p2p-interface.md
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Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,8 @@
- [Distributed Blob Publishing using blobs retrieved from local execution layer client](#distributed-blob-publishing-using-blobs-retrieved-from-local-execution-layer-client)
- [The Req/Resp domain](#the-reqresp-domain)
- [Messages](#messages)
- [BlobSidecarsByRange v1](#blobsidecarsbyrange-v1)
- [BlobSidecarsByRoot v1](#blobsidecarsbyroot-v1)
- [DataColumnSidecarsByRange v1](#datacolumnsidecarsbyrange-v1)
- [DataColumnSidecarsByRoot v1](#datacolumnsidecarsbyroot-v1)
- [GetMetaData v3](#getmetadata-v3)
Expand Down Expand Up @@ -215,6 +217,30 @@ When clients use the local execution layer to retrieve blobs, they SHOULD skip v

#### Messages

##### BlobSidecarsByRange v1

**Protocol ID:** `/eth2/beacon_chain/req/blob_sidecars_by_range/1/`

Deprecated as of `FULU_FORK_EPOCH + MIN_EPOCHS_FOR_BLOB_SIDECARS_REQUESTS`.

During the deprecation transition period:

- Clients MUST respond with a list of blob sidecars from the range `[min(current_epoch - MIN_EPOCHS_FOR_BLOB_SIDECARS_REQUESTS, FULU_FORK_EPOCH), FULU_FORK_EPOCH)` if the requested range includes any epochs in this interval.
- Clients MAY respond with an empty list if the requested range lies entirely at or after `FULU_FORK_EPOCH`.
- Clients SHOULD NOT penalize peers for requesting blob sidecars from `FULU_FORK_EPOCH`.

##### BlobSidecarsByRoot v1

**Protocol ID:** `/eth2/beacon_chain/req/blob_sidecars_by_root/1/`

Deprecated as of `FULU_FORK_EPOCH + MIN_EPOCHS_FOR_BLOB_SIDECARS_REQUESTS`.

During the deprecation transition period:

- Clients MUST respond with blob sidecars corresponding to block roots from the range `[min(current_epoch - MIN_EPOCHS_FOR_BLOB_SIDECARS_REQUESTS, FULU_FORK_EPOCH), FULU_FORK_EPOCH)` if any of the requested roots correspond to blocks in this interval.
- Clients MAY respond with an empty list if all requested roots correspond to blocks at or after `FULU_FORK_EPOCH`.
- Clients SHOULD NOT penalize peers for requesting blob sidecars from `FULU_FORK_EPOCH`.

##### DataColumnSidecarsByRange v1

**Protocol ID:** `/eth2/beacon_chain/req/data_column_sidecars_by_range/1/`
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