dumbchump if you for some strange reason decide you don't want it, I'll be happy to match your offer.

You've been bidding (usually as top bid) since the first post, so I believe you may want it more than I want the print + to see the first physical item sold via lightning network mainnet. 

OP if you decide at some point you'd like to consider accepting LN payment, feel free to contact me.

#50 0.030BTC

#1  0.02BTC

Hi. I will offer 2 million satoshi for #1, but only if you accept payment via lightning network mainnet.

Bonus: after I open a channel with you, you will be able to send and receive LN funds, virtually fee-free, to TorGuard, BitRefill, Yalls, and likely more vendors by the time this auction ends!

I will also commit my time to ensuring you get securely setup and funded.

PM me. Let’s make LN history!

Thanks for following up, your suggestions seemed very very promising! Unfortunately it looks like that script isn't compatible with the 12 word seed(s) that I have:
Traceback (most recent call last):
  File "xpub_cb.py", line 8, in <module>
    test_seed = decode_privkey(USER_SEED)
  File "/Library/Python/2.7/site-packages/pybitcointools/main.py", line 291, in decode_privkey
    if not formt: formt = get_privkey_format(priv)
  File "/Library/Python/2.7/site-packages/pybitcointools/main.py", line 271, in get_privkey_format
    bin_p = b58check_to_bin(priv)
  File "/Library/Python/2.7/site-packages/pybitcointools/main.py", line 473, in b58check_to_bin
    assert bin_dbl_sha256(data[:-4])[:4] == data[-4:]
AssertionError

 I setup my Vault almost immediately after Coinbase made it available, so I wonder if things may be a bit different compared to the current version.

As a brief update, I was able to retrieve Vault data from Coinbase's API. Unfortunately, no endpoints appear to return the three extended public keys. I tried using v1 and v2 calls to no avail.

If anyone has any other ideas, I'm all ears, but I'm pretty sure I'm dead in the water here. 

My paper backup consists of one shared seed, and one private seed (and I guess its associated password). If it's even possible, how might I generate the three xpub keys from that?

Essentially, I'm trying to use this:
https://github.com/coinbase/multisig-tool

PS - Thanks for relocating this to the appropriate forum!

Coinbase Vault multi-sig account, both seeds + password in hand, on paper, BUT the usbkey that I stored the three xpublic keys on is toast.

Per all of their documentation, the three xpub keys are available via the website under Vault details. However, that appears to not be true for my account. Support has been totally useless and non-responsive. I tried the mobile app as well, and multiple browsers.

Does anyone know how I may be able to "recover" what should be _public_ keys for my multisig account?