feat: cell level das#9160

Draft

matthewkeil wants to merge 35 commits intomkeil/cell-level-das-depsfrom

mkeil/cell-level-das-2

Commits on Apr 2, 2026

feat(types): add SSZ types for cell-level DAS partial data columns
matthewkeil
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feat(beacon-node): add --enable-partial-columns and --eagerly-publish-cells feature flags
matthewkeil
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feat(beacon-node): add cellsCache and partialHeader to BlockInputColumns
matthewkeil
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feat(beacon-node): add getByPartialHeader to seenBlockInputCache
matthewkeil
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feat(beacon-node): add GossipType.partial_data_column_sidecar and wire gossip pipeline
matthewkeil
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feat(beacon-node): implement partial data column sidecar validation
matthewkeil
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feat(beacon-node): implement partial data column gossip handler and Eth2Gossipsub integration
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feat(beacon-node): add partial column publishing helpers
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fix(beacon-node): use BitArray API for cellsPresentBitmap and add cutoff trigger
matthewkeil
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test(beacon-node): add unit tests for BlockInputColumns partial cell accumulation
matthewkeil
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test(types): add unit tests for partial data column SSZ types
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feat: turn off eagerlyPublishCells by default
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fix(beacon-node): trigger getBlobsV3 on first partial header arrival
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fix(beacon-node): route partial gossip by group id
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feat(beacon-node): publish partial data columns with full columns
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fix(beacon-node): align partial gossip defaults and topics
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feat(beacon-node): add partial column metrics
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feat(beacon-node): score partial data column gossip
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test(beacon-node): add partial data column validation tests
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test(beacon-node): expand partial column block input coverage
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feat(beacon-node): expose partial peer publish accessors
matthewkeil
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refactor(beacon-node): extract partial column publisher
matthewkeil
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feat(beacon-node): dedupe proposer partial column fanout
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feat(beacon-node): target merge and getBlobs partial publishes
matthewkeil
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feat(beacon-node): add partial publish metrics
matthewkeil
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feat(beacon-node): add request-driven partial column state
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feat(beacon-node): split full and partial column audiences
matthewkeil
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refactor(beacon-node): unify data column publish triggers
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test(beacon-node): extend worker partial serialization coverage
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feat(beacon-node): add partial publish verification metrics
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fix(beacon-node): repair partial-column rebase drift
matthewkeil
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test: normalize rebase unit fixtures
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test: stabilize repo unit verification
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test(beacon-node): cover data column reqresp flows
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test(beacon-node): add partial column gossip e2e coverage
matthewkeil
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