Public APIs
Signature Lookup

Function Lookups

The first 10 bytes of each contract call is a shortened hash of the function signature. With a database known hashes can be resolved to stored ABIs.

The lookup service allows to look up function signatures to their original ABI (Application Binary Interface).

If a function signature is not found in the Vechain b32 database, the proxy will search for a match in the Ethereum database.

GET /<hash>


Data Decoding

Additionally, if a whole data clause is provided, an attempt will be made to decode it using the corresponding ABI.

GET /<data>

Example: (opens in a new tab)

Event Lookups

The topic0 of emitted events is the event signature, which can be used to look up the corresponding ABI in the public databases.

GET /<hash>?event=true

Example: (opens in a new tab)