anchor.diff:  car,                            serialization,  0x0202,         draft,     Content Addressable aRchive (CAR)
   libp2p-peer-record,             libp2p,         0x0301,         permanent, libp2p peer record type
   libp2p-relay-rsvp,              libp2p,         0x0302,         permanent, libp2p relay reservation voucher
  +memorytransport,                libp2p,         0x0309,         permanent, in memory transport for self-dialing and testing; arbitrar
   car-index-sorted,               serialization,  0x0400,         draft,     CARv2 IndexSorted index format
   car-multihash-index-sorted,     serialization,  0x0401,         draft,     CARv2 MultihashIndexSorted index format
   transport-bitswap,              transport,      0x0900,         draft,     Bitswap datatransfer
  
positive.code: garlic64,                       multiaddr,      0x01be,         draft,     I2P base64 (raw public key)
  garlic32,                       multiaddr,      0x01bf,         draft,     I2P base32 (hashed public key or encoded public key/checksum+optional secret)
  tls,                            multiaddr,      0x01c0,         draft,
  noise,                          multiaddr,      0x01c6,         draft,
  quic,                           multiaddr,      0x01cc,         permanent,
  webtransport,                   multiaddr,      0x01d1,         draft,
  
negative.code: murmur3-32,                     multihash,      0x23,           draft,
  ip6,                            multiaddr,      0x29,           permanent,
  ip6zone,                        multiaddr,      0x2a,           draft,
  ipcidr,                         multiaddr,      0x2b,           draft,     CIDR mask for IP addresses
  path,                           namespace,      0x2f,           permanent, Namespace for string paths. Corresponds to `/` in ASCII.
  multicodec,                     multiformat,    0x30,           draft,
  multihash,                      multiformat,    0x31,           draft,
  