import { Attestation } from '../models/simplestamp/v1/attestation';
import { Operation } from '../models/simplestamp/v1/operation';
export declare class Execution {
    /**
     * Given a source hash and list of operations, iterate over them to derive
     * the calendar server key. Stops at the first attestation operation.
     */
    static deriveCalendarKey(hash: Buffer, operations: Operation[]): Buffer;
    /**
     * Takes an initial input and an Attestation, runs all its operations, and
     * returns the mutated Attestation.
     */
    static processOperations(initial: Buffer, attestation: Attestation): Attestation;
    /** SHA256 hash the input binary. */
    static sha256(input: Buffer): Buffer;
}
//# sourceMappingURL=execution.d.ts.map