đ Live Bitcoin Multisig Signer â Automation for Shared Custody
I'm working on a system where a live server can automatically sign Bitcoin transactions (PSBTs) as part of a 2-of-3 multisig setup.
Use case:
1 key = your mobile wallet (e.g. Nunchuk)
1 key = cold storage
1 key = held on a live server that signs PSBTs under certain rules
đŠ You send a PSBT to the server â it reviews it â signs it â sends it back.
The idea is to automate multisig signing while still requiring multiple parties to approve a transaction.
â
Pros
Semi-automated custody without full trust
Rules can be enforced (limit amounts, whitelist addresses, etc.)
Useful for DAOs, families, small orgs, or programmable escrow
â ď¸ Cons
Relies on trust in the signing server
If compromised, it weakens the multisig
Downtime means delays in spending
Re-centralization risk?
đ Would you trust a system like this?
What conditions would make it safe enough?
Do you see it as smart coordination or a security loophole?
Open to feedback & debate.
#bitcoin #multisig #automation #custody #nostr #psbt
tzongocu
npub10uâŚmz5qy
2025-06-07 19:05:55
Author Public Key
npub10u8xfdfw7447c26c34rql333yh6k0kevq9x3an8gqmvdtdpqnchqpmz5qyPublished at
2025-06-07 19:05:55Event JSON
{
"id": "7e3e37cc28109212f7a6b186eeaf4d5dbb081e4527582745e954458f31b482ac",
"pubkey": "7f0e64b52ef56bec2b588d460fc63125f567db2c014d1ecce806d8d5b4209e2e",
"created_at": 1749323155,
"kind": 1,
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"content": "đ Live Bitcoin Multisig Signer â Automation for Shared Custody\n\nI'm working on a system where a live server can automatically sign Bitcoin transactions (PSBTs) as part of a 2-of-3 multisig setup.\n\nUse case:\n\n1 key = your mobile wallet (e.g. Nunchuk)\n\n1 key = cold storage\n\n1 key = held on a live server that signs PSBTs under certain rules\n\nđŠ You send a PSBT to the server â it reviews it â signs it â sends it back.\n\nThe idea is to automate multisig signing while still requiring multiple parties to approve a transaction.\n\nâ
Pros\n\nSemi-automated custody without full trust\n\nRules can be enforced (limit amounts, whitelist addresses, etc.)\n\nUseful for DAOs, families, small orgs, or programmable escrow\n\nâ ď¸ Cons\n\nRelies on trust in the signing server\n\nIf compromised, it weakens the multisig\n\nDowntime means delays in spending\n\nRe-centralization risk?\n\nđ Would you trust a system like this?\nWhat conditions would make it safe enough?\nDo you see it as smart coordination or a security loophole?\n\nOpen to feedback \u0026 debate.\n#bitcoin #multisig #automation #custody #nostr #psbt",
"sig": "46dd293429d13dba12d1cf4b79626df5b0b23b4211977526752993d26475cf15b952ebc0ddc4aa6a31822864e857673326fc4a2e83489387d8ffb3506d1c8409"
}