Module execution 

Execution layer specific types for .ere files

Contains implementations for compressed execution layer data structures:

• CompressedHeader - Block header
• CompressedBody - Block body
• CompressedSlimReceipts - Block receipts
• TotalDifficulty - Block total difficulty

These types use Snappy compression to match the specification.

See also https://github.com/eth-clients/e2store-format-specs/blob/main/formats/ere.md

Structs

Accumulator

Accumulator is computed by constructing an SSZ list of header-records and calculating the hash_tree_root

BlockTuple

A single block’s components in an ERE file.

CompressedBody

Compressed block body using snappyFramed(rlp(body))

CompressedHeader

Compressed block header using snappyFramed(rlp(header))

CompressedSlimReceipts

Compressed slim receipts using snappyFramed(rlp(...)).

HeaderRecord

The minimal per-block commitment used to build the accumulator.

Proof

A proof entry attesting to block validity against a trusted consensus layer header.

SlimReceipt

A slim execution receipt as stored in an ERE file.

TotalDifficulty

Total difficulty for a block

Enums

ProofType

Proof type discriminant used inside the Proof entry’s RLP envelope.

Constants

ACCUMULATOR

Accumulator record type

COMPRESSED_BODY

CompressedBody record type

COMPRESSED_HEADER

CompressedHeader record type

COMPRESSED_SLIM_RECEIPTS

CompressedSlimReceipts record type (0x0a00) Slim receipts exclude bloom filters to optimize storage.

MAX_BLOCKS_PER_ERE

Maximum number of blocks in an ERE file, limited by accumulator size.

PROOF

Proof record type (0x0b00) Format: snappyFramed(rlp([proof-type, ssz(proof-object)]))

TOTAL_DIFFICULTY

TotalDifficulty record type