Compliance Lists

Compliance lists are watchlists of certain association sets of addresses, established according to specific criteria.

Compliance lists are generally used as blacklists, allowing builders to avoid building blocks that include transactions involving an address in this list, and allowing block proposers to voluntarily prevent any blocks they propose from including transactions involving any address in the chosen compliance list.

There are currently 5 available compliance lists:

List nameMaintianerDescriptionParameter valueAddress count*



List of addresses sanctioned by OFAC


Sanction Watchlist

Global Ledger

List of addresses belonging to sanctioned entities


Sanction Exposure Watchlist

Global Ledger

List of addresses who have been exposed to funds involved with sanctioned entities


Cybercrime Watchlist

Global Ledger

List of addresses involved in known cybercrime


Suspicious Watchlist

Global Ledger

List of addresses suspected of leading to crime or sanctions


*as of May 29th 2024


For validators that wish to use a compliance list to make sure any blocks they propose avoid transactions from addresses on a selected compliance list:

Add a compliance query parameter to the URL you pass in using the -relays flag. For example:

Note: you must use a bloXroute regulated relay to use this feature.

Multiple Lists

Validators can choose more than one compliance list. To utilize multiple compliance lists, either pass in a comma-separated list of valid compliance list names, or pass in separate compliance_list values. For example:,global-ledger-sanction-watchlist



Checking which list to use

To check which list to use, the validator registration contains information on which compliance list (if any) the validator will follow.

type GetValidatorRelayResponse []struct {
    Slot  uint64 `json:"slot,string"`
    Entry struct {
        Message struct {
            FeeRecipient string `json:"fee_recipient"`
            GasLimit     uint64 `json:"gas_limit,string"`
            Timestamp    uint64 `json:"timestamp,string"`
            Pubkey       string `json:"pubkey"`
        } `json:"message"`
        Signature string `json:"signature"`
    } `json:"entry"`
    ComplianceList      string `json:"compliance_list"`
    EnforcedProfitRatio uint64 `json:"enforced_profit_ratio"`

This will be served as a JSON object.

Getting the list

For builders that want to submit blocks for validators that are using compliance lists, their builder must get the compliance lists from the relay. The request can be made with a GET request to the endpoint:


and the query parameter:


For example: The builder must include their authorization header (from bloXroute account portal) in the http request header, like -H "Authorization: <YOUR-AUTHORIZATION-HEADER>" , when making this query.

Keep in mind, the result will be served in SSZ (for the sake of speed). To unmarshal the SSZ, the public repo (only the branch compliance-lists-example). includes the ComplianceRegistry struct, which has the method: UnmarshalSSZ(buf []byte) that can be used to unmarshal the response into a usable ComplianceRegistry struct.

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