bitgould
Dan Gould

obsessed with the bitcoin privacy problem, payjoin, snowmobile trails, and armchair 漢學

Public Key

npub1yevrvtp3xl42sq06usztudhleq8pdfsugw5frgaqg6lvfdewfx9q6zqrkl

NIP-05 Address

bitgould@bitgould.com

NIP-57 Address

bitgould@stacker.news

Profile Code

nprofile1qqszvkpk9scn064gq8awgp97xmlusrsk5cwy82y35wsyd0kykuhynzspp4mhxue69uhkummn9ekx7mqppemhxue69uhkummn9ekx7mp0ysjx8u

Publishing to

nos.lol

relay.noswhere.com

Author Public Key

npub1yevrvtp3xl42sq06usztudhleq8pdfsugw5frgaqg6lvfdewfx9q6zqrkl

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Last Notes

2024-10-09 15:52:53

has generative ai given rise to a new type of software worker who is neither a developer nor applies engineering principles yet produces results as a product mainly of extracting results from software?

2024-08-21 15:31:54

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How did you find Erik?

2024-08-12 16:00:44

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https://bitcoindevkit.org/blog/_2024-q2-update/ percent-encoding gone rogue

2024-08-11 16:25:01

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I think they do with a bit of additional kyc and manual in-app bitcoin purchase https://help.venmo.com/hc/en-us/articles/16145303480595-Crypto-Transfers

2024-08-10 14:38:40

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I’m glad twitter broke away from the mainstream and at the same time recognize the incentives are broken

2024-08-06 13:26:20

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curious if you’d have luck asking them to send bitcoin from venmo

2024-08-02 23:23:50

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Cool vape

2024-07-22 18:15:30

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I’ve seen no kyc regulated financial services are viable for small amounts (i.e. less than $1k). Could an institution offer a mint and somehow cap amounts with range proofs?

2024-07-18 18:51:28

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Using Payjoin for better batching of all sorts of activity is the goal. Sounds like you just get it 🔥
Any major snags or changes to propose?

2024-07-18 18:31:31

Putting the reps in with Payjoin Dev Kit I see 🫡 #note1x74…pr6a

2024-07-18 16:27:50

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The BIP recommends Tor or VPN for private DNS querying. Was ODoH considered? I assume it was avoided because it tries to avoid HTTP, but in web clients of course HTTP is available

2024-07-17 20:52:24

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The OHTTP relay doesn’t terminate TLS and instead depends on a reverse proxy to do so. nginx-full configuration can terminate the TCP stream but e.g caddy can only terminate at the HTTP layer. Not sure how start9 handles TLS termination for those who want it to be reachable by domain.

2024-07-17 18:03:41

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probably. getting tls termination right on a raw tcp stream is the tricky part

2024-07-17 17:48:52

Had some new blood deploy an OHTTP Relay yesterday. Access to many resources Bitcoin and beyond are about to level up privacy.

2024-07-14 21:13:08

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Congratulations to you

2024-06-30 01:28:37

Prediction markets should be sats denominated. What’s blocking this?

2024-06-27 16:09:11

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I think I confused MASQUE requirements with OHTTP requirements. Big if true.

2024-06-27 15:11:11

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afaiu WebSocket unfortunately isn’t actually HTTP, but a hack to get TCP communication working that breaks out of HTTP semantics. MASQUE requires data to be sent in HTTP.

2024-06-26 03:09:13

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The difficulty with proxying arbitrary traffic like Apple does is that an attacker can flood DoS traffic behind protection. That’s why OHTTP specs 1:1 relay server to gateway server. OHTTP could even work for general Nostr if it were available over WebTransport instead of WebSocket.

2024-06-21 18:24:44

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https://youtu.be/FzJTvAwg_is?si=CbN3vjfmZEh33QrU

2024-06-20 15:42:46

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OP_CAT is proposed taproot stuff.
Concatenating makes it possible to transform data to be used by both mathops and sigops within taproot script. I’m aware of no other deployed opcode that bridges these two worlds.

2024-06-20 14:56:59

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There is no deployed opcode that bridges math opcodes (32 bits input) with signature opcodes (>32 bits input). OP_CAT is the simplest proposal I know of that makes this, and thus simple transaction introspection, possible.

2024-06-20 14:41:49

Why doesn’t Nostr have encrypted messaging on par with Signal yet? @npub1jy2…9p6d explains https://blog.yonson.dev/log/2024-06-vol2/

2024-06-13 18:58:25

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There’s such a vast creative opportunity for style between a hoodie and and a dark suit with oxfords that’s slept on. Few.

2024-06-12 13:32:13

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sorry Yegor

2024-06-11 01:19:34

Apple is relying on Oblivious HTTP for IP address protection too, not just Payjoin #note18ha…zwkk

2024-05-26 14:17:15

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BIP 78 is Payjoin v1
BIP 77 is Payjoin V2 (an open draft PR)

2024-05-26 04:13:48

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Neither up- nor downgrade, just another flavor. Payjoin keeps details of an actual payment private from third parties. Old school equal-amount CoinJoin (including Wasabi 2) keeps earlier history private from a second party, but payments thereafter leak details.
Payjoin is an incremental change to boost the privacy of the whole network, not just for an individual.

2024-05-26 04:10:41

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Silent payments and payjoin can already work together. Payjoin fixes common imput ownership heuristic and silent payments fixes address reuse. ¿Porqué no los dos?

2024-05-23 05:37:14

The simplest way to break the sole privacy problem Satoshi left in the whitepaper 🫱 #note1zyq…f0yu

2024-05-09 13:47:34

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“If you can’t be first in a category set up a new category you can be first in” — 22 Immutable Laws of Marketing

2024-05-09 13:26:53

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What’s mutiny’s category of one? The social features haven’t appealed to me.

2024-05-05 15:42:39

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That’s exactly what OHTTP lets you do. Clients can bake in that they only connect to relays over OHTTP and relays can be unreachable without it. And it doesn’t take 30s to start like Tor.

2024-05-05 15:37:44

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It is a requirement since WebSocket is not really HTTP, but a hack that breaks out of HTTP to keep a TCP socket open. WebTransport lets you do the same kind of streaming split into genuine HTTP packets.

2024-05-05 15:36:01

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Yes WebTransport is how you stream data inside HTTP

2024-05-03 15:43:53

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Everything Nostr is WebSockets now, tunneling is a bit more complex/slow, WebTransport is relatively new and not super widely supported

2024-05-03 05:00:23

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🫡

2024-05-03 04:56:24

If nostr used WebTransport instead of WebSockets traffic could tunnel through an Oblivious HTTP relay since it could be wrapped in HTTP/3. Then your IP could be protected. #note1a34…0xea

2024-05-03 04:49:10

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Was this BIP ever part of a PR in the github.com/bitcoin/bips repo? Probably would be assigned a number in no time if it were today

2024-04-12 03:37:38

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The title & cover triggered some lefty friends who couldn’t cool down before reading but I found it insightful.

2024-04-10 18:27:58

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yes

2024-04-02 16:42:17

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oh wait *paying a person*, (not “in person”) makes all the sense in the world

2024-04-02 16:40:40

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Congrats on the release
🚅 nothing stops this train
I am surprised most Mutiny users are trying to make payments in person

2024-03-30 14:16:32

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Still in the idea stage

2024-03-29 21:00:06

I just posted Payjoin-in-Potentiam to fund LSPs to open channels on your behalf in one atomic transaction. This is an optimization of Swap-in-Potentiam that posts only half of the bytes to the blockchain to achieve the same outcome.
Check it out on Delving Bitcoin:
https://delvingbitcoin.org/t/payjoin-in-potentiam-externally-fund-an-lsp-channel-open-with-one-transaction/749

2024-03-13 20:09:59

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Have you ever spoken with small business owners? Most I know complain about CC fees. Especially those whose customers used to pay by check.

2024-03-04 01:02:40

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A new version could replace WebSocket with WebTransport which is an http protocol and not just a hack

2024-02-15 16:21:53

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I’m super interested in this topic. But the audio from Alex is borderline unlistenable :/

2024-02-09 16:43:15

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Looks like hardware interface for payjoins has been nonsensical. Thanks for fixing it and making the work public.
What a beautiful design exploration.

2024-02-03 03:16:12

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I’m not sure of any UI that yet enables this fine grained queueing and batching you’re describing but it’s certainly possible. sender would propose their batch, receiver would respond with theirs, combined and signed, and the sender would take a final sign off if all looks good. Should be the same flow you’re used to for any other tx in terms of signing, but both would set up queues or batches in their respective wallets beforehand to consolidate or otherwise batch funds beforehand. @npub1yas…adnu might have some design input

2024-02-02 19:19:35

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Payjoin is coordinated by end to end encrypted messages transmitted over the internet between sender and receiver. The protocol is specified in BIP 78 and BIP 77. Neither sparrow nor Mutiny support receiving payjoin yet (but stay tuned)
Payjoin enables exactly what you’ve described, multiple inputs and outputs from each user may be batched into a single transaction. Input selection depends on the wallet implementation but is not limited by the payjoin protocol itself. What selection do you have in mind?

2024-02-02 14:29:26

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Let me know what you think of https://payjoin.org so that it addresses your exact questions

2024-01-28 03:36:25

this makes sense https://dev.37signals.com/the-radiating-programmer/

2024-01-17 20:10:44

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Thanks for the very kind words Yegor 🫡

2024-01-15 15:43:56

Swab your teeth with probiotic once and prevent cavities forever? The treatment will be available for the first time in Próspera, Honduras this week.
https://www.astralcodexten.com/p/defying-cavity-lantern-bioworks-faq

2024-01-12 22:02:08

Your typical payment + consolidation has to pay for 51% more block weight compared to a payjoin batching them together together.
Your typical P2TR Payjoin: 211.75 vBytes
A separate payment and consolidation costs ❗️ 320.75 vB combined.
152.25 vB P2TR payment:
https://mutinynet.com/tx/2c45dc6fef9feb32b9741cc3e6197eda94e1b0c45675e18818bfadce9fa94e20
168.5 vB P2TR consolidation:
https://mutinynet.com/tx/ef9263ed05c07f7ba933389eee7bfd62372e3dc4d1e697f96b7c66a215cc9b46

2024-01-10 03:40:19

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the lmstudio.ai site says 16GB minimum but your experience differs?

2024-01-10 02:23:19

Any LLMs that write decent .nix ? Chat GPT 4 is borderline useless vs reading raw docs

2024-01-08 03:17:08

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hearing Matt say “he’s taken Square to more of a crypto direction” demonstrates an unsatisfactory narrative ignorance. so close

2024-01-08 03:10:30

Love hearing the word “Nostr” come out of Matt Mullenweg’s mouth on the Tim Ferris Show this new year
https://tim.blog/2024/01/02/matt-mullenweg-2-transcript/

2024-01-03 18:44:24

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fee revenue* can’t forget the block reward

2023-12-27 19:07:13

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consensus does take time

2023-12-27 18:22:05

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The best way I’ve found for multiple implementations to agree on a spec is the BIP process
implementation did come before BIP spec however

2023-12-27 17:13:15

Payjoin V2 BIP has been assigned BIP 77
https://github.com/bitcoin/bips/pull/1483

2023-12-21 22:39:40

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does the feerate specified include coordinator fees?

2023-12-21 22:11:29

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I think it’s actually a lot more trivial than we’ve considered when you look at tx morphology in a graph vs isolation.
Looking at the graph as a whole, if it’s not too costly to pay for receiver input during time of payment you always prefer payjoin. Maybe some diagrams would help explain.
The two extremes should be ignored because they’re far outside of reality.

2023-12-21 17:55:37

A payjoin with mixed script types is often better than the same payment done with basic transactions and later script mixing. It's an opportunity to save fees in consolidation. It's an opportunity to save with transaction cut-through. It's an opportunity to open lightning channels ASAP. A mixed input script payjoin offers still more ambiguous interpretations than the alternative chain of basic payment transactions.
When both sender and receiver to any transaction match input scripts then of course chain surveillance can't tell input sources apart by script type. However perfect should not be the enemy of good. Wallets can use different scripts. Payjoins with mixed input scripts make a more ambiguous blockchain and opportunities to save money bigtime.

2023-12-21 04:47:00

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I too embrace sanity

2023-12-20 19:01:34

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😑

2023-12-20 18:38:54

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wowowowowowowwoowowowowo

2023-12-17 17:37:25

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Congrats 🫡⚡️

2023-12-15 23:34:02

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exactly, or having e.g a more firmly moderated space show approved only

2023-12-15 23:31:46

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they could easily moderate from the substack client side

2023-12-15 23:27:42

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just released into production this week ^^

2023-12-15 23:26:41

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wow @npub1mut…23vg fedimint will land at just the right time

2023-12-15 17:36:24

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what happened to building in layers

2023-12-15 03:23:36

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good luck deleting from here

2023-12-13 21:55:34

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I was also thinking Electrum Server not wallet. This is absolutely feasible in Electrum wallet if you’d like to voice your support politely here https://github.com/spesmilo/electrum/issues/6585

2023-12-13 18:14:36

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Electrum only handles sync, this requires PSBT signing.
If sparrow were to expose expose a psbt rpc yes. If not, time to ask Craig to consider the Payjoin v2 protocol integration.

2023-12-13 16:15:29

Yes, many times daily
But I may have helped write it #note1csz…3luf

2023-12-13 02:22:39

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Looks like @npub1r0p…6zy4 is where

2023-12-13 02:22:07

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Looks lke @npub1r0p…6zy4 is where

2023-12-13 02:15:50

Where does one get “Central Bank Digital Currencies enslave” merch?
asking for a friend

2023-12-10 23:39:29

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have you tried shutting it off and turning it on again

2023-12-09 20:51:56

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bitdevs.sv and bitdevs.org.sv ccTLDs both available!

2023-11-30 22:07:24

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https://crates.io/crates/payjoin-cli

2023-11-30 22:06:06

🚀 Exciting News for Payjoin Tinkerers 🛠️
Introducing payjoin-cli alpha 🌐 A game-changer for those using Bitcoin Core.
✨ Seamlessly integrate payjoin
🔐 Batching & privacy by default
🧪 Welcome independent testing. Your feedback shapes the future
🔗 https://crates.io/crates/payjoin
⚠️ i.e. New science project just dropped 🚧

2023-11-30 00:16:10

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❤️❤️❤️

2023-11-29 04:56:24

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Good enough tech is good enough.

2023-11-29 04:48:50

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Is there a btcpayserver setting to show taproot addresses / Does your payjoin-enabled wallet contain taproot utxos?

2023-11-26 03:58:58

@npub1uzd…t23m 很耐心地給我機會用中文講比特幣。這是我第一次用中文錄播客。多謝 @npub1uul…fxy3 ，大家好好享受。
https://youtu.be/CMTlvotczDg?si=9DZ0i0r94Bz8qF_v

2023-11-26 02:59:14

I’ll take 5 please. Take my sats. Can’t come soon enough. #note15ue…uv7s

2023-11-25 03:53:48

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this is it ⚡️

2023-11-19 02:31:25

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legends

2023-11-17 16:57:42

Use GPT-4 Vision to get a working prototype from a wireframe in seconds
https://arstechnica.com/information-technology/2023/11/ai-powered-drawing-app-stuns-developers-by-turning-sketches-into-functional-games/

2023-11-17 15:55:33

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❤️

2023-11-17 15:53:25

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Payjoin V2 protects IPs without Tor

2023-11-17 15:52:29

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Tor takes forever to start up and make circuits, has its own consensus, and will likely never be packaged in the most popular consumer apps. Think Cash App.
OHTTP has browser and native OS support. It’s just crypto sprinkled on HTTP. Client complexity trades with this manual infrastructure set up by wallets & services which is the right one for payjoin where clients’ barriers have been too high.

2023-11-17 15:43:36

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V1 tried and failed. This works without the complexity

2023-11-17 15:02:37

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yes