:off 0: packet header 0x9833 (tag 6, len 51)
Public key packet
    version: 4
    creation time: 1590071668 (??? ??? ?? ??:??:?? ????)
    public key algorithm: 22 (EdDSA)
    public key material:
        ecc p: 263 bits
        ecc curve: Ed25519
    keyid: 0xc972affd358bf887
:off 53: packet header 0xb400 (tag 13, len 0)
UserID packet
    id: 
:off 55: packet header 0x8890 (tag 2, len 144)
Signature packet
    version: 4
    type: 19 (Positive User ID certification)
    public key algorithm: 22 (EdDSA)
    hash algorithm: 8 (SHA256)
    hashed subpackets:
        :type 33, len 21
        issuer fingerprint: 0x753d5b947e9a2b2e01147c1fc972affd358bf887 (20 bytes)
        :type 2, len 4
        signature creation time: 1590071668 (??? ??? ?? ??:??:?? ????)
        :type 27, len 1
        key flags: 0x03 ( certify sign )
        :type 11, len 4
        preferred symmetric algorithms: AES-256, AES-192, AES-128, TripleDES (9, 8, 7, 2)
        :type 21, len 5
        preferred hash algorithms: SHA512, SHA384, SHA256, SHA224, SHA1 (10, 9, 8, 11, 2)
        :type 22, len 3
        preferred compression algorithms: ZLib, BZip2, ZIP (2, 3, 1)
        :type 30, len 1
        features: 0x01 ( mdc )
        :type 23, len 1
        key server preferences
        no-modify: 1
    unhashed subpackets:
        :type 16, len 8
        issuer key ID: 0xc972affd358bf887
    lbits: 0xdec3
    signature material:
        ecc r: 250 bits
        ecc s: 256 bits