Proper implementation of the rfc2634 framework in Go?

Question

go

I implemented the rfc2634 structures in Go in the following way.

SigningCertificate ::=  SEQUENCE {
    certs        SEQUENCE OF ESSCertID,
    policies     SEQUENCE OF PolicyInformation OPTIONAL
}

id-aa-signingCertificate OBJECT IDENTIFIER ::= { iso(1)
    member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs9(9)
    smime(16) id-aa(2) 12 }

ESSCertID ::=  SEQUENCE {
     certHash                 Hash,
     issuerSerial             IssuerSerial OPTIONAL
}

Hash ::= OCTET STRING -- SHA1 hash of entire certificate

IssuerSerial ::= SEQUENCE {
     issuer                   GeneralNames,
     serialNumber             CertificateSerialNumber
}

var oidAttributeSigningCert   = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 9, 16, 2, 12}
type SignerCertificate struct {
  SigningCertificate SigningCertificate `asn1:"sequence"`
  Policies           PolicyInformation  `asn1:"sequence,optional"`
}

type PolicyInformation struct {
}

type SigningCertificate struct {
  ESSCertID ESSCertID `asn1:"sequence"`
}

type ESSCertID struct {
  IssuerAndSerial IssuerAndSerial `asn1:"optional"`
  Hash            []byte          `asn1:"explicit,tag:0"`
}

I add this attribute to the signature, it is formed without errors, I check it on any verifier, there is an error in parsing ans1 , it displays data that was encoded before the certificate (it is not shown by the verifier). I'm assuming it's the structure tags, how do I set them correctly to implement the rfc structure?