Addresses field in ScriptPubkey

Question

"txid": "055f9c6dc094cf21fa224e1eb4a54ee3cc44ae9daa8aa47f98df5c73c48997f9",
"hash": "055f9c6dc094cf21fa224e1eb4a54ee3cc44ae9daa8aa47f98df5c73c48997f9",
"version": 1,
"size": 433,
"vsize": 433,
"locktime": 0,
"vin": [
    {
        "txid": "b187426f2fdd5a7ac2f49d822f68e07f48486ee53a8a45de2494f12acb37a0d8",
        "vout": 3,
        "scriptSig": {
            "asm": "3046022100d78c31a20fa11533475be893b229eb4d252e600dcc2a0735d360c541b6aec813022100e3eaa72c915ef47d94ccbd18c2ba6d9ae5b98be6e9fbf968d4bbbb003e06d687[ALL] 030e001332b43924be343986cca3df669f57b0dedd120990e727787f8dea50fdbc",
            "hex": "493046022100d78c31a20fa11533475be893b229eb4d252e600dcc2a0735d360c541b6aec813022100e3eaa72c915ef47d94ccbd18c2ba6d9ae5b98be6e9fbf968d4bbbb003e06d6870121030e001332b43924be343986cca3df669f57b0dedd120990e727787f8dea50fdbc"
        },
        "sequence": 4294967295
    }
],
"vout": [
    {
        "value": 0.00010860,
        "n": 0,
        "scriptPubKey": {
            "asm": "1 030e001332b43924be343986cca3df669f57b0dedd120990e727787f8dea50fdbc 20434e545250525459000000140001a9e0e85838b5000000174876e800010053b6 2 OP_CHECKMULTISIG",
            "hex": "5121030e001332b43924be343986cca3df669f57b0dedd120990e727787f8dea50fdbc2120434e545250525459000000140001a9e0e85838b5000000174876e800010053b652ae",
            "reqSigs": 1,
            "type": "multisig",
            "addresses": [
                "1FrbMcddiM1v3HMpUqygjZYCamBykWCWao"
            ]
        }
    },
    {
        "value": 0.00010860,
        "n": 1,
        "scriptPubKey": {
            "asm": "1 030e001332b43924be343986cca3df669f57b0dedd120990e727787f8dea50fdbc 20a3c3000000000000000000000000000000000000000000000000000000000000 2 OP_CHECKMULTISIG",
            "hex": "5121030e001332b43924be343986cca3df669f57b0dedd120990e727787f8dea50fdbc2120a3c300000000000000000000000000000000000000000000000000000000000052ae",
            "reqSigs": 1,
            "type": "multisig",
            "addresses": [
                "1FrbMcddiM1v3HMpUqygjZYCamBykWCWao"
            ]
        }
    },
    {
        "value": 0.00010860,
        "n": 2,
        "scriptPubKey": {
            "asm": "1 030e001332b43924be343986cca3df669f57b0dedd120990e727787f8dea50fdbc 100000000000000000000000000000000000000000000000000000000000000000 2 OP_CHECKMULTISIG",
            "hex": "5121030e001332b43924be343986cca3df669f57b0dedd120990e727787f8dea50fdbc2110000000000000000000000000000000000000000000000000000000000000000052ae",
            "reqSigs": 1,
            "type": "multisig",
            "addresses": [
                "1FrbMcddiM1v3HMpUqygjZYCamBykWCWao"
            ]
        }
    },
    {
        "value": 0.01061564,
        "n": 3,
        "scriptPubKey": {
            "asm": "OP_DUP OP_HASH160 a2f2d251cc06ec1e789800127e3fa6ed9e515651 OP_EQUALVERIFY OP_CHECKSIG",
            "hex": "76a914a2f2d251cc06ec1e789800127e3fa6ed9e51565188ac",
            "reqSigs": 1,
            "type": "pubkeyhash",
            "addresses": [
                "1FrbMcddiM1v3HMpUqygjZYCamBykWCWao"
            ]
        }
    }
]

In the above transaction, each scriptpubkey has addresses array and it has 1 address. I guess this address is derived from the public key of asm. In this example each asm has 2 public keys. So addresses array should contain 2 addresses. But it has only one. Can someone explain this?

Answer 1

Have a look to https://blockchain.info/tx/055f9c6dc094cf21fa224e1eb4a54ee3cc44ae9daa8aa47f98df5c73c48997f9?show_adv=true

At the bottom of the page you can see "disassembled" output scripts. Yes, outputs 0, 1 and 2 have the form of 1 pushdata33 pushdata33 2 CHECKMULTISIG so these outputs are 1-of-2 multisig outputs. But you should look even deeper! The compressed form of public key is 33 bytes long and must start with 02 or 03 in hex representation. What do you see on that page? The lines

20434e545250525459000000140001a9e0e85838b5000000174876e800010053b6
20a3c3000000000000000000000000000000000000000000000000000000000000
100000000000000000000000000000000000000000000000000000000000000000

do not start with 02 or 03 so they are not public keys. It may be some garbage or another protocol layer like a counterparty. I do not know.

The modern Bitcoin Core client does not try to convert these chunks of bytes to a public keys and does not try to create human readable addresses. So, you see only one address 1FrbMcddiM1v3HMpUqygjZYCamBykWCWao in console. This is not a bug, this is a feature.