Skip to content

Latest commit

 

History

History
30 lines (21 loc) · 1.23 KB

heavy.md

File metadata and controls

30 lines (21 loc) · 1.23 KB
Raw

README

General concept

For general concept explanation one can refer to /pkg/core/database/README.md. This document must focus on decisions made with regard to goleveldb specifics

K/V storage schema to store a single pkg/core/block.Block into blockchain

Prefix KEY VALUE Count Used by
0x01 HeaderHash Header.Encode() 1 per block
0x02 HeaderHash + TxID TxIndex + Tx.Encode() block txs count
0x03 Height HeaderHash 1 per block FetchBlockHashByHeight
0x04 TxID HeaderHash block txs count FetchBlockTxByHash
0x05 Tip Hash of latest block 1 per chain FetchRegistry
0x06 Persisted Hash of latest persisted block 1 per chain FetchRegistry

K/V storage schema to store a candidate pkg/core/block.Block

Prefix KEY VALUE Count Used by
0x07 HeaderHash Block.Encode() Many per blockchain Store/Fetch/Delete CandidateBlock

Table notation

  • HeaderHash - a calculated hash of block header
  • TxID - a calculated hash of transaction
  • '+' operation - denotes concatenation of byte arrays
  • Tx.Encode() - Encoded binary form of all Tx fields without TxID