niftynei

head of instruction @npub1vmpf90hq56wzyxht6teg3llpa74rzcepw9suj5unxl3tph24zd4qgtxhm7

Public Key

npub1e0z776cpe0gllgktjk54fuzv8pdfxmq6smsmh8xd7t8s7n474n9smk0txy

NIP-57 Address

nifty@chain.fail

Profile Code

nprofile1qqsvh300dvquh50l5t9et2257pxrsk5ndsdgdcdmnnxl9nc0f6l2ejcpz3mhxue69uhhyetvv9ujuerpd46hxtnfduqs6amnwvaz7tmwdaejumr0dsdmufjw

Publishing to

relay.damus.io

nos.lol

relay.snort.social

Author Public Key

npub1e0z776cpe0gllgktjk54fuzv8pdfxmq6smsmh8xd7t8s7n474n9smk0txy

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Last Notes

2024-11-11 19:46:43

my friend @jc4p is building a fun new experience for a dating app: one where you journal 📝 to yourself instead of answering questions
check out how it graded me based on just a 2-3 different resources 😮 I’m extremely impressed!!
you can see the whole profile it built for me here: https://claude.site/artifacts/cc72bb3f-c546-4e62-b263-5774cb066f00
want to help beta test? signups are here https://video-speed-dating.vercel.app/ https://image.nostr.build/1ac32940f40cf967d84b8a3840f082d5d66bdea6b9bae2ae5aed64f75f147e5e.jpg https://image.nostr.build/1476f52c0338d6314caf2bb8796b764d3f321f2b00ec2c453a2418fa2b9942ad.jpg https://image.nostr.build/8411f6d344f80d7887cdd57df7a7172f820c515f95530698bd6e52f3f9a1a14a.jpg https://image.nostr.build/7d6c7412e730554f709c23fb8aeb0bae0e4718e2bb576af70c3f25d076049393.jpg

2024-10-29 22:13:07

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in brazil this February!! https://btcpp.dev/conf/floripa

2024-10-29 21:42:01

excited to finally be releasing videos from the *May* edition of bitcoin++ all about scripts. this first one is all about @npub148j…xhgp's TXHASH proposal
h/t @npub1s8d…jalq for getting these moving! #note1upm…vje6

2024-10-29 14:53:46

gm welcome to day 1 in buenos aires, we’re going to hang out with some bitcoiners 👌
https://m.primal.net/Llzr.mov

2024-10-24 22:27:32

brb writing a book called “the early adapters”

2024-10-23 22:34:56

when @npub1yxp…399s goes places, he always stays for 21 days

2024-10-23 12:07:31

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it’s choose your own adventure time 😏

2024-10-23 09:46:39

renaming the time btw 4.30a + 6a the “nifty hours” 😆

2024-10-23 09:45:52

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what makes it extreme?

2024-10-22 18:13:40

had so much fun in Berlin, i wanna go backkkk

2024-10-22 18:08:31

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entp’s are famous for their love for debate

2024-10-22 16:05:48

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oh definitely! though i’d bet globally you’re more of a T than most F’s

2024-10-22 16:04:49

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intuitive thinker who spends more time understanding the world than passing judgement on it; works best in teams and with deadlines. easily nerd sniped by a novel gadget

2024-10-22 12:45:46

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oh you smart smart

2024-10-22 12:34:46

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i think this is why introversion is hard to pin down, it’s really the shadow universe of what living without that external magnet is like

2024-10-22 12:27:43

high extroverts experience a feeling of desire to interact with the external environment that i’ve best heard described as “greediness”; introverts otoh are way more satisfied with *not interacting*, there’s no strong magnet of emotion pulling you into interaction with your environment in the same way

2024-10-22 12:04:33

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what’s your most romantic ideal, princess?

2024-10-22 11:46:28

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ok rarity, hit me with your most controversial theory

2024-10-22 11:45:59

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what are you daydreaming about right now??

2024-10-22 11:40:27

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they’re asking for how you experience and decide things in your default state. are you more into exploring or making decisions? are you a systematic decision maker or someone who feels it out? do you like seeing the matrix or are you more into the sensory experience of living?

2024-10-22 11:37:25

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what’s your latest big theory about the universe ?

2024-10-22 11:36:45

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this is now a safe space for you to shill your accomplishments

2024-10-22 05:02:30

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intp!

2024-10-22 05:01:44

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💯

2024-10-22 05:01:33

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this is a calculated answer, isn’t it? 😉

2024-10-22 05:01:02

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we’re all going to be outsmarted by you, someday 😳

2024-10-22 03:28:26

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find an entj to sidekick if you want more sats

2024-10-22 03:16:45

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what have you been envisioning lately dreamer?

2024-10-22 03:15:48

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what’s the last debate you won tiger

2024-10-22 03:04:42

no day in the life vid from yesterday instead i bring you a video explaining how myers briggs letters work. what’s your type?? #myersbriggs #typetheory #carljung #mbti #jungian
https://m.primal.net/LdyZ.mov

2024-10-21 23:58:56

“a community that trades” ❤️ #note19xq…czwx

2024-10-21 23:58:29

sometimes i get anxiety about there being some neglected “extrovert” task i should be doing but it’s escaped my attention b/c i’ve introverting too hard

2024-10-21 14:36:47

looks like nifty’s traveltok is on break for yesterday due to me forgetting to film 🎥

2024-10-21 14:35:57

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oh i just meant they’re so jammed packed with stuff! no wonder i’m tired haha

2024-10-20 22:13:05

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i really love his book “11 minutes”!

2024-10-20 21:56:59

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💯

2024-10-20 13:50:51

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first bit of this post:
“I truly have built my ads on there [instagram] brick by brick”
“probably 50% of the dresses you see my try on on here, were served to me as instagram ads”
https://youtube.com/shorts/tNCRvhw8d7U?si=f3vmbYapUvHnx68z

2024-10-20 03:17:29

Day 4 in austin was no #moving just unpacking and setting things up. got the #wifi online and a cozy seating nook sorted; ordered ikea furniture + amazon storage shelves that should arrive in 2 days 👌
https://m.primal.net/Lbfj.mov

2024-10-20 02:35:19

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it’s the sort of thing i wont really understand until i experience it but the amount of work it takes to get there is rough

2024-10-20 02:34:33

i haven’t studied german enough to know what about it people find hard and it’s annoying me to no end, the not knowing exactly the shape of the challenge

2024-10-20 02:32:20

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mein gott

2024-10-20 02:31:22

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thereabouts. it was too expensive last time i was in the market for a move :/

2024-10-20 02:04:33

i wanna retire to the ozarks 🌲🚤🏍️🌲

2024-10-19 19:30:22

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yoooo 🙌

2024-10-19 14:56:24

what award would you be most excited to win?

2024-10-19 12:30:59

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information is only as decentralized as its sources; people can only follow so many accounts

2024-10-19 12:29:57

short video for day 3 in #atx unloading yet more boxes from storage this time; finally got my books 📚 out after 18mos trapped in storage 💕 also found the brochure that got me to go to takayama on my japan trip last month 🇯🇵 https://video.nostr.build/554ad956f1b8dff114205af1d0af723d7dea86d972ad1bac9bdff708d3ce8da7.mp4

2024-10-18 09:40:51

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the newest thing is it’s expensiver too 😔

2024-10-18 09:25:51

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all of the above!!

2024-10-17 23:17:25

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*more expensive than

2024-10-17 23:17:13

also why is food in the US worse than europe? this is a new thing and i hate it

2024-10-17 07:48:11

gm it’s the first day back in Austin and today we are getting ready for a move of the @npub1vmp…xhm7 / @npub1dwa…7c52 HQ #niftytravels #atx #moving
https://m.primal.net/LYUx.mov

2024-10-16 11:03:34

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disappointed the covenants chat didn’t even merit a mention

2024-10-15 07:13:03

gm; just closed out my last day in #berlin with the nap to end all naps #btcpp #traveltok #niftytravels
https://m.primal.net/LWWm.mov

2024-10-14 16:58:03

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it would appear so 😂

2024-10-14 16:56:42

my dad sent me an old photo of himself, not sure where from but would bet it’s from a refinery job ❤️ https://image.nostr.build/12953345deb4e7543b03576453e6fd04ac04bd3b5b672898ef487aca4cea1dc5.jpg

2024-10-14 15:37:41

this btcplusplus was exhausting, my journal video from today is just gonna be shots of my hotel room 😂

2024-10-14 01:26:16

day 6 in Berlin was an action packed one of day 2 of running @npub1dwa…7c52 ecash edition in #berlin
https://m.primal.net/LVRt.mov

2024-10-13 01:09:36

day 5 in #berlin was a whirlwind of talks and workshops at the first day at @btcplusplus #ecash edition
https://m.primal.net/LUHw.mov

2024-10-11 13:07:33

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yes! eventually, we haven’t posted almost any talks for this year yet 😭

2024-10-11 12:33:30

gm day 4 in #berlin is the day before @npub1dwa…7c52 #ecash edition, we’re getting ready at #w3 and hanging out at @raspiblitz day ahead of the speakers dinner 👌
https://m.primal.net/LSSm.mov

2024-10-11 11:05:12

livestreams for bitcoin++ ecash edition are live on zap.stream (and also youtube)
#note1m0j…m8c4
talks stage: https://youtube.com/live/E81VNB3CRsY?feature=share
workshops stage: https://youtube.com/live/7j1cH25CYKY?feature=share

2024-10-11 11:03:56

livestreams for bitcoin++ ecash edition are live on zap.stream (and also youtube)
#note1m0j…m8c4

2024-10-11 00:03:21

a look at yesterday in #berlin; went on a jog, visited #w3hub and #cbase
https://m.primal.net/LRme.mov

2024-10-10 07:13:32

i spent way too long trying to pay an online merchant using a credit card yesterday 😭 (german vendor wouldn’t take an American card)

2024-10-10 06:29:18

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some things a tactical vest can protect you from. for everything else, there’s the CO2 monitor 👌

2024-10-10 06:27:00

this one hits 👌 #note13wv…ggll

2024-10-09 23:59:14

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*whispers*: bolt12 recurring payments are coming

2024-10-09 19:39:29

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we’re walking through a random list of links for new projects and updates to bitcoin and the number of projects that just so happen to have someone in the room that can talk about it, or was involved with it is 🤯

2024-10-09 19:19:11

this year’s @npub1dwa…7c52 berlin hasn’t even started yet, but looking around at the bitdevs crowd at cbase tonight, im getting the feeling we’re going to have another really amazing event again this year 🚀
not too late to fomo in!!!!

2024-10-09 12:35:47

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I think at 17 that’s a bit old for the island no??

2024-10-09 07:49:06

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sparked by flipping thru YouTube looking for a talk only to find this 😩 https://image.nostr.build/9b28a0d03b87e4087e1457083d771a276708da511aedb2d61104ccd4176be96b.jpg

2024-10-09 07:47:42

sometimes i wonder how my life would have turned out if i had gone to model school at 17 and learned how to be photogenic (went to one day and then mom said no)

2024-10-09 04:49:24

hi gm welcome to day 2 in #berlin had a pretty quiet day ahead of @npub1dwa…7c52 number 7, ecash edition 👌
https://m.primal.net/LPZe.mov

2024-10-08 09:46:56

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actually i did think about moving them to Keet but haven’t 🤷

2024-10-08 09:45:58

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i have not

2024-10-08 09:40:14

i wrote the emailing/ticketing system for @npub1dwa…7c52 and it gives me no end of joy when i see someone join the telegram group for a conference (because i know they successfully got their ticket email with the link to the telegram!)

2024-10-08 09:29:09

i love protocols and i love cryptography ❤️

2024-10-08 09:25:53

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missing photo 📸
https://m.primal.net/LOgg.jpg

2024-10-08 09:25:03

what if we brought a little piece of japan to the rest of the world??

2024-10-08 07:48:29

the biggest genius of lightning imo is using bitcoin transactions to hold the state of balances in the channel

2024-10-08 06:35:38

gm day 1 in #berlin we did some shopping and lots of sleeping (not pictured) #traveltok #btcpp incoming 📨
https://m.primal.net/LOal.mov

2024-10-08 02:12:44

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Lightning channels exist and lightning payments are sometimes preferred by people, so this scenario you describe already exists even without a change to bitcoin

2024-10-07 16:33:17

just fixed my zaps (switched to my alby account lol), so if you missed out on zapping me the last few months, now’s your chance 🤣 ⚡️

2024-10-07 09:55:14

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i really understand bitcoin transactions because, ironically, that’s the part of lightning i’ve spent a lot of time on

2024-10-07 09:50:08

one funny aspect of being a contributor to lightning is that i best understand the part where the funds get locked into bitcoin transactions and the accounting parts; the onion routing and path finding and gossip bits are all things i don’t have deep info about the details of in the same way

2024-10-07 07:53:21

gm day 3 in #prague sees us hanging at #hcpp for a few hours before catching the evening train to #berlin ahead of @npub1dwa…7c52 . not pictured is the mad scramble for the train in prague 😂 #traveltok
https://m.primal.net/LNdf.mov

2024-10-07 07:27:06

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the next post is here: #nevent1q…gy2u

2024-10-07 07:26:13

in the last post we talked about how we need introspection to make more restrictive statements about where bitcoin is allowed to be spent. for example, to only let the bitcoin be spent in a transaction that pays nifty 500k of the sats.
how do we make introspection happen in bitcoin scripts? there’s a couple of proposals, each one a bit more involved than the last. we’ll start with the simplest proposal, and work our way to the most complex.
the simplest is probably the least well known: op-tx. this opcode will take a flagset as its input. the flagset “flags” which parts of the tx should be added onto the stack. the interpreter will look at the flags, find that data in the tx, and then pull it in by putting it on the stack.
once the data is pushed onto the stack, you can make assertions about that data. for example, you could flag to op-tx to push the first output amount and script onto the stack. this would then let you check that the tx is sending at least 500k sats to nifty’s address.
op-tx is very simple, but powerful. there’s open questions about how to design the flags that refer to different parts of a transaction, as well as how expensive it can be to do operations on the data. could you maybe make a script that has too long of a run time because of having access to so much transaction data? there’s also issues with limited amounts of data being allowed onto the stack, which you might run into if the tx info is too big.
to try to alleviate concerns about access to too much data, op-txhash has been proposed.
txhash works similarly, in that it lets you define a flagset which points to different parts of the transaction. instead of pushing the data directly onto the stack, however, it instead hashes the data and pushes the resulting *hash* onto the stack.
so if i wanted to check that the first output of the transaction paid me 500k sats, i’d have to figure out the hash of that when writing the locking script. i’d then use op-txhash to push the hash of the first output onto the stack, and them compare that to the one i calculated when i first locked the coins up. instead of looking at data directly, we’re looking at hashes of data.
there are some downsides to using hashes. for example, this makes it impossible to do comparisons like “at least” 500k sats sent to nifty. you’d have to only accept txs that send exactly 500k sats.
using hashes has definite upsides though. you can verify a lot more information in a single check. for example instead of checking the amount and address separately, you’d check a single hash value that compares them both. this also saves space, and reduces the number of checks that need to be done.
which brings us to op-ctv. op-ctv is an opinionated version of op-txhash. instead of allowing you to choose what set of fields from a tx you want to hash and check against, it picks a fixed set of data from the tx that goes into the hash. this means you need a better understanding of exactly what the tx your bitcoin will be spent in to use ctv. you can’t just compare the first output’s hash, for example.
op-ctv stands for “check template verify”; the “template” in this case is the fixed set of fields in a tx that will be hashed together.
one downside to using op-ctv is that you can’t change the amounts or outputs in the spending tx, which makes it more difficult to add fees later to ensure the tx can be mined.
ok that’s a good stopping point for the “simple” hash and direct access proposals for introspection opcodes in bitcoin scripting.
in the next post we’ll look at the craziest way that introspection can be added to bitcoin: op-cat 🐱
enjoying this series about covenant proposals? learn more about how txs work with @npub1vmp…xhm7 online classes 👌
Read more about TXHASH and how it relates to CTV/TX here: https://delvingbitcoin.org/t/draft-bip-for-op-txhash-and-op-checktxhashverify/121
Original proposal for op-tx is here: https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2022-May/020450.html
Op-ctv you can find out more about on the Bip119: https://github.com/bitcoin/bips/blob/master/bip-0119.mediawiki

2024-10-07 06:55:54

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😭

2024-10-07 06:54:53

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it’s easy to spot this kind of behavior— if you’re providing the bitcoin address to send funds to you can have confidence that your funds are unencumbered
the usual argument is that you can do what you describe today merely by making all funds require a signature from another party (you can’t spend them w/o the other party’s explicit sign off). this idea is used extensively in lightning to ensure funds end up in agreed upon places

2024-10-06 16:46:55

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planning to spin up some study clubs next month! will keep you posted 👍

2024-10-06 16:36:10

it’s weird how “taking the train to berlin from prague” has become a non-exotic behavior
i don’t feel like a foreigner or a tourist. i feel more endemic, like a person with connection to the place and business being here

2024-10-06 16:26:43

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@walletsardine and @anchorwatch are building/have timelock capabilities, but theyre the only ones i know of. the reasons for this are a bit complex

2024-10-06 15:34:51

there’s a lot of talk about “covenants” but not a lot of understanding what that entails. lets do a little dive into how i think about the opcode proposals and how they relate to “enabling covenants on bitcoin”
what is a covenant?
great question. a covenant is the ability to specify what the transaction that spends your bitcoin must look like. for example, you could say “the transaction that spends this bitcoin must pay 500k sats to this address” or “the transaction that spends this bitcoin must have a locktime set to block 880,000”
in order to make these kinds of assertions in bitcoin transactions, you need the ability to find out what information is in the transaction that is spending an output. this information needs to be accessible when the script is running.
bitcoin script is a limited programming language that you use to write locks for bitcoin. one of the limitations is what data you have access to while the program is running.
so in order to write more “expressive” bitcoin scripts, which can say “one output must be to my address and pay 500k sats”, for example, you need to be able to look at the outputs on a transaction.
this ability to look at the info on a transaction is called “introspection”. being able to introspect a transaction is a big missing piece in bitcoin. adding introspection enables you to write covenants.
so how do you get introspection in bitcoin script?
you have to add a new opcode for it. in fact, we’ve added two opcodes to bitcoin that enable introspection already: op-checklocktimeverify (op-cltv) and op-checksequenceverify (op-csv)
these look at the locktime/sequence of a transaction and require a certain value to be set in order to be valid. they were added in order to enable lightning, which uses both op-cltv and op-csv to make “primitive” covenants. these were added to enable LN, to help scale bitcoin.
today you could write a bitcoin script that asserts “the transaction that spends this bitcoin must have a locktime set to block 880,000”. you’d use op-cltv to make that script, and any coins locked to that script wouldn’t be spendable til block 880,000.
there’s no way to look at the output fields in a transaction though. you cant write a script that requires funds to go somewhere, you’d have to use presigned txs (like how lightning does) to make that kind of assertion.
ok so the goal of introspection is to let you look at what information is in a transaction that’s spending a bitcoin output. we can do this already with op-cltv and op-csv. but this is limited just to timelocks, and doesn’t let us make assertions about outputs, or other inputs.
in the next post i’ll talk about how the current opcode proposals (op-ctv, op-txhash, op-tx, op-cat) work and how they enable more broad tx introspection !
if you found this interesting, check out @npub1vmp…xhm7 and our classes on bitcoin transactions!

2024-10-06 15:02:41

thought my train left at 5p; got to the station at 4.12p. couldn’t find my train on the board, no luck finding my ticket in my email.
checked the train ticketing app, next train is at 4.28p. yep, i can definitely see that train on the board. it’s now 4.16p.
i smash buy a ticket on the app and start looking for the track but cant find it. head to the information desk, ask where the track is. turns out it’s all the way at the end if the station on the second floor. it’s now 4.21p.
i run. make it to the platform, there’s a big flight of stairs up. I have 100lbs of luggage, there’s no time to look for an elevator so i start dragging.
I make it to the platform. it’s now 4.26p. the train is still there. I head to the nearest door and climb on.
ive been on this route before and know that the regular fare cars always get overbooked. you end up spending the 4 and a half hour ride sitting in the aisle. i paid extra for a first class ticket so i could avoid this fate (and tried to arrive forty minutes early rip)
problem is, i have no idea where the first class car is. im stuck in the middle of the train. the aisles are crowded. I’m dragging two oversize suitcases.
i start walking towards the front of the train but it’s ugly. the aisles are strewn with people who are hunkering down for a long ride. they are very much unhappy about me pushing past them. i feel bad but at this point i have paid for not one but two tickets on this train. i am getting to the first class car, preferably before we get to the next station and more people board.
it’s insane to me that the tickets are sold without reservations, this whole situation feels extremely chaotic. sure it’s partly my fault, it’s also completely nuts to me how oversold trains here are.
i only have to walk through three cars to get to the first class car. it’s also packed but there’s no one in the aisle and there is one empty seat next to a sleeping lady. i wake her up to so she’ll move her stuff off the unoccupied seat. there’s even a luggage rack on this car, what a luxury.
luggage stowed, seat acquired,
and we’re on the way to Berlin 🙌 🇨🇿 🚆🇩🇪

2024-10-06 03:46:02

gm day 2 in #prague was another day with the hacker community at #paralelnípolis #hcpp #traveltok
https://m.primal.net/LMdz.mov

2024-10-05 18:36:04

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i remember watching rachel work on it at tabconf two years ago 👌

2024-10-05 18:35:09

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too real 😢

2024-10-05 18:34:47

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wow thats so cool!!