codec,              description,              code

miscelaneous,,
bin,                raw binary,               0x55

bases encodings,,
base1,              unary,                    0x01
base2,              binary (0 and 1),         0x55
base8,              octal,                    0x07
base10,             decimal,                  0x09
base16,             hexadecimal,              0x
base32,             rfc4648,                  0x
base32hex,          rfc4648,                  0x
base58flickr,       base58 flicker,           0x
base58btc,          base58 bitcoin,           0x
base64,             rfc4648,                  0x
base64url,          rfc4648,                  0x

serialization formats,,
cbor,               CBOR,                     0x
bson,               Binary JSON,              0x
ubjson,             Universal Binary JSON,    0x
protobuf,           Protocol Buffers,         0x
capnp,              Cap-n-Proto,              0x
flatbuf,            FlatBuffers,              0x
rlp,                recursive length prefix,  0x60

multiformats,,
multicodec,         ,                         0x30
multihash,          ,                         0x31
multiaddr,          ,                         0x32
multibase,          ,                         0x33

multihashes,,
sha1,               ,                         0x11
sha2-256,           ,                         0x12
sha2-512,           ,                         0x13
sha3-224,           ,                         0x17
sha3-256,           ,                         0x16
sha3-384,           ,                         0x15
sha3-512,           ,                         0x14
shake-128,          ,                         0x18
shake-256,          ,                         0x19
keccak-224,         ,                         0x1A
keccak-256,         ,                         0x1B
keccak-384,         ,                         0x1C
keccak-512,         ,                         0x1D
,, Note: keccak has variable output length. The number specifies the core length
blake2b-X,X is length in bits, can take values from 8 to 512 in 8 bit increments,0xb201-0xb240 (0xb201 - blake2b-8, 0xb240 - blake2b-512)
blake2s-X,X is length in bits, can take values from 8 to 256 in 8 bit increments,0xb241-0xb260 (0xb241 - blake2s-8, 0xb260 - blake2b-256)
reserved for apps,  appl specific range,      0x4000-0x40f0

multiaddrs,,
ip4,                ,                         0x04
ip6,                ,                         0x29
tcp,                ,                         0x06
udp,                ,                         0x0111
dccp,               ,                         0x21
sctp,               ,                         0x84
udt,                ,                         0x012D
utp,                ,                         0x012E
ipfs,               ,                         0x2A
http,               ,                         0x01E0
https,              ,                         0x01BB
ws,                 ,                         0x01DD
onion,              ,                         0x01BC

archiving formats,,
tar,                ,                         0x
zip,                ,                         0x

image formats,,
png,                ,                         0x
jpg,                ,                         0x

video formats,,
mp4,                ,                         0x
mkv,                ,                         0x

IPLD formats,,
dag-pb,             MerkleDAG protobuf,       0x70
dag-cbor,           MerkleDAG cbor,           0x71
eth-block,          Ethereum Block (RLP),     0x90
eth-tx,             Ethereum Tx (RLP),        0x91
bitcoin-block,      Bitcoin Block,            0xb0
bitcoin-tx,         Bitcoin Tx,               0xb1
stellar-block,      Stellar Block,            0xd0
stellar-tx,         Stellar Tx,               0xd1