openoms on Nostr: I just force-exited a non-custodial Blink wallet (using Spark) on Bitcoin mainnet. ...
I just force-exited a non-custodial Blink wallet (using Spark) on Bitcoin mainnet.
Seed only - no operator cooperation: recovery bundle, fee funding, CPFP signing and sweep all derived from the wallet seed.
The honest numbers for a 100k sat wallet:
• 22 leaves, 253 tx packages to exit fully
• only 4 leaves (90% of the value) were worth exiting - fees would have eaten the other18
• ~9.4k sats in fees to recover 90.1k, one package per block per chain, then a ~2-week timelock
Non-custodial means you can always leave. But the fire escape is narrow - full case study with costs, failures and lessons:
https://github.com/blinkbitcoin/spark-unilateral-exit/blob/main/docs/mainnet-exit-case-study.md 
Published at
2026-07-08 14:50:10 UTCEvent JSON
{
"id": "a3e641a67d758e2c3a1b0c441b3e5fe8f96b2edd760f4fe2e3edc426822ec8e2",
"pubkey": "aac07d95089ce6adf08b9156d43c1a4ab594c6130b7dcb12ec199008c5819a2f",
"created_at": 1783522210,
"kind": 1,
"tags": [
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],
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"r",
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"r",
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],
[
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"wss://multiplexer.huszonegy.world/"
],
[
"imeta",
"url https://blossom.primal.net/3771944c21849fd461b5a1a2cd13515755f1d232690ea5b633fd2b7c95f5135c.png",
"m image/png",
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"content": "I just force-exited a non-custodial Blink wallet (using Spark) on Bitcoin mainnet.\nSeed only - no operator cooperation: recovery bundle, fee funding, CPFP signing and sweep all derived from the wallet seed.\n\nThe honest numbers for a 100k sat wallet:\n• 22 leaves, 253 tx packages to exit fully\n• only 4 leaves (90% of the value) were worth exiting - fees would have eaten the other18\n• ~9.4k sats in fees to recover 90.1k, one package per block per chain, then a ~2-week timelock\n\nNon-custodial means you can always leave. But the fire escape is narrow - full case study with costs, failures and lessons:\nhttps://github.com/blinkbitcoin/spark-unilateral-exit/blob/main/docs/mainnet-exit-case-study.md\n\nhttps://blossom.primal.net/3771944c21849fd461b5a1a2cd13515755f1d232690ea5b633fd2b7c95f5135c.png",
"sig": "fab409d29bda94435021a39793a09234b6040ced8fab9705d2edc6db4680e628b1a84ff6a3dafb4cdc4d96cd5bc20056cf89003ab09cec5566e5997511d65b7f"
}
