export declare const MAX_SCRIPT_BLOCK = 50;
export declare const DEFAULT_VERSION = 1;
export declare const DEFAULT_LOCKTIME = 0;
export declare const DEFAULT_SEQUENCE = 4294967295;
export declare const SIGHASH_ALL = 1;
export declare const OP_DUP = 118;
export declare const OP_HASH160 = 169;
export declare const HASH_SIZE = 20;
export declare const OP_EQUAL = 135;
export declare const OP_EQUALVERIFY = 136;
export declare const OP_CHECKSIG = 172;
export declare const OP_RETURN = 106;
export declare const ZCASH_ACTIVATION_HEIGHTS: {
    NU6_1: number;
    NU6: number;
    NU5: number;
    CANOPY: number;
    HEARTWOOD: number;
    BLOSSOM: number;
    SAPLING: number;
};
export declare const zCashEncCiphertextSize = 580;
export declare const zCashOutCiphertextSize = 80;
export declare const zCashProofsSaplingSize = 192;
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