Update EIP-4844: Decouple blobs #6610

g11tech · 2023-03-04T11:09:11Z

Decouple the blobs as per

EIP-4844: Free the blobs consensus-specs#3244

eth-bot · 2023-03-04T11:09:48Z

✅ All reviewers have approved.

github-actions · 2023-03-04T11:14:46Z

The commit 366b28a (as a parent of bb8db28) contains errors.
Please inspect the Run Summary for details.

EIPS/eip-4844.md

Inphi · 2023-03-21T19:04:27Z

EIPS/eip-4844.md

@@ -334,7 +334,7 @@ class BlobTransactionNetworkWrapper(Container):
    # BLSFieldElement = uint256
    blobs: List[Vector[BLSFieldElement, FIELD_ELEMENTS_PER_BLOB], LIMIT_BLOBS_PER_TX]
    # KZGProof = Bytes48
-    kzg_aggregated_proof: KZGProof
+    blob_proofs: List[KZGProof, MAX_TX_WRAP_KZG_COMMITMENTS]


A bit redundant to call it blob_proofs. Let's call it proofs.

added it on the lines of blob_kzgs, should we also rename it to just kzgs?

IMO kzgs is ambiguous because it's not clear if it refers to proofs or commitments.

then renaming them to commitments is a good idea?

I think it is a good idea, but probably in a separate PR.

I was originally mistaken that you were gonna introduce another kzgs naming with this PR, but since it refers to something that already exists, please disregard my previous comment.

I don't have a strong opinion about blob_kzgs vs kzgs. But I guess if you go with proofs it also makes sense to go with kzgs.

Prefer commitments to kzgs.

updated, can rename blob_kzgs to commitments in a followup PR

Here is the followup PR build on top of this current branch: g11tech#1 (can update target to this repo once this PR merges)

I have merged the followup changes to this PR on the request from @Inphi

should i also rename blob_versioned_hashes to versioned_hashes in BlobTransactionType? @Inphi @asn-d6 @dankrad

asn-d6

LGTM

hwwhww · 2023-05-01T15:57:47Z

EIPS/eip-4844.md

-def kzg_to_versioned_hash(kzg: KZGCommitment) -> VersionedHash:
-    return BLOB_COMMITMENT_VERSION_KZG + sha256(kzg)[1:]
+def kzg_to_versioned_hash(commitment: KZGCommitment) -> VersionedHash:
+    return BLOB_COMMITMENT_VERSION_KZG + sha256(commitment)[1:]


Suggest renaming all BLOB_COMMITMENT_VERSION_KZG to VERSIONED_HASH_VERSION_KZG as CL specs.

Suggested change

return BLOB_COMMITMENT_VERSION_KZG + sha256(commitment)[1:]

return VERSIONED_HASH_VERSION_KZG + sha256(commitment)[1:]

umm ... BLOB_COMMITMENT_VERSION_KZG makes more sense to me as its the version of the commitment scheme

I think the rationale was the version of VersionedHash. I'm not sure what's the scenario of changing VERSIONED_HASH_VERSION_* but not just changing the commitment scheme though.

It should be unified to one of the names anyway.

/cc @asn-d6 @dankrad any thoughts?

And kzg_to_versioned_hash was also renamed to kzg_commitment_to_versioned_hash.

No strong opinion here. I think both variants are reasonable.

I would go with @hwwhww suggestions to make it the same with consensus-specs.

Co-authored-by: dankrad <[email protected]>

…on container

g11tech · 2023-05-12T13:19:25Z

rebase via UI @Inphi could you take a look/re-approve now that you are in authors list 😆

hwwhww · 2023-05-15T08:07:55Z

It might be off the scope of this PR, but there are some more CL specs changes that are not synced.
e.g., the type of Blob was changed to ByteVector[BYTES_PER_FIELD_ELEMENT * FIELD_ELEMENTS_PER_BLOB] in ethereum/consensus-specs#3038

asn-d6

Let's get this merged finally! Sorry for the delays.

@g11tech is there a chance you can also open another PR to further synchronize the EIP with the consensus-specs in terms of function names and type changes. I think consensus-specs is a bit ahead on this (due to the unittests) and we should get the EIP to catch up. Thanks!

eth-bot

All Reviewers Have Approved; Performing Automatic Merge...

g11tech · 2023-05-15T10:25:52Z

sounds good, will open an update for bringing naming convention uptodate

github-actions bot added c-update Modifies an existing proposal s-review This EIP is in Review t-core labels Mar 4, 2023

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g11tech mentioned this pull request Mar 4, 2023

tx: Update eip4844 txs to decoupled blobs spec ethereumjs/ethereumjs-monorepo#2567

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Deneb crypto helpers test coverage ethereum/consensus-specs#3283

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EIP Editing Office Hour Meeting 13 ethcatherders/EIPIP#216

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Add corresponding proofs to BlobsBundleV1 ethereum/execution-apis#392

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g11tech requested review from dankrad, asn-d6 and Inphi and removed request for dankrad, asn-d6 and Inphi March 27, 2023 09:50

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g11tech dismissed stale reviews from Inphi and asn-d6 via 32c1fe7 April 13, 2023 07:02

g11tech force-pushed the free-the-blobs branch from 32c1fe7 to ac89c71 Compare April 13, 2023 07:32

This was referenced Apr 17, 2023

EIP-4844 Implementers' Call #20 ethereum/pm#755

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Merge getPayloadV3 and getBlobsBundleV1 ethereum/execution-apis#402

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realbigsean mentioned this pull request Apr 20, 2023

update blob transaction sigp/lighthouse#4218

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fab-10 mentioned this pull request Apr 27, 2023

Decouple Blobs hyperledger/besu#5402

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hwwhww reviewed May 1, 2023

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g11tech and others added 7 commits May 12, 2023 18:48

Update EIP-4844: Decouple blobs

3bc1d36

apply feedback

7d87825

update the proof function to public one

8841f61

Co-authored-by: dankrad <[email protected]>

explicity verify proofs number to match commitment and versioned hashes

55609d2

Co-authored-by: dankrad <[email protected]>

rename blob_proofs to more succinct proofs for network wrapper

d9517d7

Replace kzgs references with a more generalized term: commitments

656cb21

removing redundant blob prefix from versioned hashes in BlobTransacti…

0132e81

…on container

g11tech force-pushed the free-the-blobs branch from 6845a66 to 0132e81 Compare May 12, 2023 13:18

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Update EIP-4844: Decouple blobs #6610

Update EIP-4844: Decouple blobs #6610

g11tech commented Mar 4, 2023

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g11tech commented May 15, 2023

	return BLOB_COMMITMENT_VERSION_KZG + sha256(commitment)[1:]
	return VERSIONED_HASH_VERSION_KZG + sha256(commitment)[1:]

Update EIP-4844: Decouple blobs #6610

Update EIP-4844: Decouple blobs #6610

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