Crate sp_transaction_storage_proof 

Storage proof primitives. Contains types and basic code to extract storage proofs for indexed transactions.

Modules

registration

runtime_api

Runtime API definition for the transaction storage proof processing.

Structs

IndexedTransactionInfo

Metadata for a single indexed transaction.

InherentDataProvider

Provider for inherent data.

TransactionStorageProof

Holds a chunk of data retrieved from storage along with a proof that the data was stored at that location in the trie.

Enums

Error

Errors that occur in context of inherents.

HashingAlgorithm

Hashing algorithm used to compute a ContentHash.

InherentError

Errors that can occur while checking the storage proof.

Constants

CHUNK_SIZE

Proof trie value size.

INHERENT_IDENTIFIER

The identifier for the proof inherent.

Traits

IndexedBody

An interface to request indexed data from the client.

TransactionStorageProofInherentData

Auxiliary trait to extract storage proof.

Functions

encode_index

A utility function to encode the transaction index as a trie key.

num_chunks

A utility function to calculate the number of chunks.

random_chunk

A utility function to extract a chunk index from the source of randomness.

Type Aliases

ChunkIndex

Type used for counting/tracking chunks.

CidCodec

IPFS multicodec content-type identifier for an indexed payload. Full list of values here.

ContentHash

Hash of indexed data; the algorithm is reported in HashingAlgorithm.