Funding

Over the past years, I’ve received support and funding from multiple sources for my open-source work. Without this support, I wouldn’t have the time and freedom to work on the projects I think are important for Bitcoin. I publish this for transparency and to give credit. The funding is no-strings-attached. I’m not affiliated with the supporters in any other way.

opensats logo
mit dci logo
hrf.org logo
spiral.xyz logo
brink.dev logo
coinbase giving logo
samouraiwallet logo
shiftcrypto logo
bitrefill logo

Expenses

Generally, I use the funding to cover:

  • hosting: e.g. VPSs and domains
  • hardware: e.g. server, laptop, work phone, ..
  • travel: e.g. to conferences or CoreDev
  • rent: e.g. a dedicated office room
  • admin: e.g. accounting
  • a modest salary for myself
  • taxes

Community Donations

From time-to-time, I’m asked if I accept community donations. While my grant funding covers my expenses, I accept community donations as no-strings-attached and voluntary support. These aren’t payments and they come with no expectations or guarantees:

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

For no-strings-attached and voluntary donations to b10c you can use:
onchain                 (coming soon!)
LN via BOLT12           ₿bolt12@b10c.me
silent payments         (coming soon!)

Or use one of my referal codes for:
bitrefill.com           https://www.bitrefill.com/invite/0xb10c (we both get $5 after you spent $200)
obscura.net VPN         https://obscura.net/refer#amerch (we both get 1 month free after you pay for your first month)

2026-02-04 - 00000000000000000001baaa4c670e352d04ce047d9d4113ce068be824b1dc10

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Funding and Work-Logs

Image for OpenSats Work-Log 8

January 31, 2026

OpenSats Work-Log 8

This is a copy of the 8th work-log I sent to OpenSats for my LTS grant.

Image for OpenSats Work-Log 7

October 31, 2025

OpenSats Work-Log 7

This is a copy of the 7th work-log I sent to OpenSats for my LTS grant.

Image for Support from LocalhostResearch for peer-observer

October 1, 2025

Support from LocalhostResearch for peer-observer

Localhost Research supported my peer-observer project by sponsoring three servers for a demo instance, which can be found on demo.peer.observer. …

Image for OpenSats Work-Log 6

July 31, 2025

OpenSats Work-Log 6

This is a copy of the 6th work-log I sent to OpenSats for my LTS grant.

Image for OpenSats Work-Log 5

April 30, 2025

OpenSats Work-Log 5

This is a copy of the 5th work-log I sent to OpenSats for my LTS grant.

Image for OpenSats Work-Log 4

January 31, 2025

OpenSats Work-Log 4

This is a copy of the 4th work-log I sent to OpenSats for my LTS grant.

Image for OpenSats Work-Log 3

October 31, 2024

OpenSats Work-Log 3

This is a copy of the 3rd work-log I sent to OpenSats for my LTS grant.

Image for OpenSats Work-Log 2

July 31, 2024

OpenSats Work-Log 2

This is a copy of the 2nd work-log I sent to OpenSats for my LTS grant.

Image for OpenSats Work-Log 1

April 30, 2024

OpenSats Work-Log 1

This is a copy of the 1st work-log I sent to OpenSats for my LTS grant.

Image for Long-Term-Support Grant from OpenSats for 2024 and 2025

February 1, 2024

Long-Term-Support Grant from OpenSats for 2024 and 2025

OpenSats supported my work on Bitcoin in 2024 and 2025 with a Long-Term-Support grant.

Image for Spiral Work-Log Q4 2023

January 31, 2024

Spiral Work-Log Q4 2023

This is a copy of the Q4 2023 work-log I sent to Spiral for my grant.

Image for Spiral Work-Log Q3 2023

October 16, 2023

Spiral Work-Log Q3 2023

This is a copy of the Q3 2023 work-log I sent to Spiral for my grant.

Image for Support from MIT DCI for peer-observer

September 1, 2023

Support from MIT DCI for peer-observer

The MIT DCI supported my peer-observer project with six monitoring Bitcoin nodes for 1.5 years.

Image for Grant from Human Rights Foundation

May 9, 2023

Grant from Human Rights Foundation

The Human Rights Foundation supported my work on Bitcoin with a developer grant.

Image for Grant from Spiral.xyz for 2023

February 1, 2023

Grant from Spiral.xyz for 2023

Spiral.xyz supported my work on Bitcoin for the full year of 2023 with a developer grant.

Image for Grant from Bitcoin Suisse (not accepted)

April 8, 2022

Grant from Bitcoin Suisse (not accepted)

Bitcoin Suisse suprise-announced that they had selected me for a Research Grant.

Image for Grant from Brink for 2022

February 1, 2022

Grant from Brink for 2022

Brink.dev supported my work on Bitcoin for the full year of 2022 with a developer grant.

Image for Grant from Coinbase for 2021

February 1, 2021

Grant from Coinbase for 2021

Coinbase Giving provided a Bitcoin developer grant my work on Bitcoin in 2021.

Image for Support from Samourai Wallet for mempool.observer

October 1, 2020

Support from Samourai Wallet for mempool.observer

Samourai Wallet supported my work on mempool.observer with a one-time donation that payed for hosting costs.

Image for ShiftCrypto sponsoring mempool.observer

October 1, 2019

ShiftCrypto sponsoring mempool.observer

ShiftCrypto sponsored some of my work on mempool.observer.

Image for Support from Bitrefill for transactionfee.info

January 1, 2019

Support from Bitrefill for transactionfee.info

Bitrefill supported my work on transactionfee.info (now mainnet.observer).