Replying to @wmclaxton, @dsearls and @linuxjournal

I’m hoping we can find some acceptable semi-biometric solutions to the second category. Biometrics are dangerous. The way that the iPhone does it is acceptable—it is only used as one possible authenticator to the phone, that unlocks a non-metric authenticator to services. Not ID!

Fri Dec 01 19:54:12 +0000 2017

RT @JamieXML: The Roku Number of the Beast: one more rock on that stony path of #privacy, reidentification, and “opaque” identifiers (UUID…

Fri Dec 01 23:19:07 +0000 2017

RT @PCI_Initiative: Aadhaar: Digital Identity Writ Large in India / By @JoeAndrieu @meilinfung @moniquejmorrow @chi…

Fri Dec 01 23:55:12 +0000 2017

I’ve always enjoyed the Koans in @Appelcline’s series “The Dao of Board Gaming”, but all three this week made me laugh out loud:

Sat Dec 02 16:47:09 +0000 2017

“The growth of documents generally reflects the lack of trust in a society. No paper trail can make someone accountable. Only self-assumption can. Too many societies had used paper as a substitute for accountability” from “Adiamante” by L.E. Modisett Jr.

Sat Dec 02 23:05:32 +0000 2017

RT @Truthcoin: Should Bitcoin take sidechain R&D more seriously?

Sun Dec 03 23:45:38 +0000 2017

RT @NakamotoInst: JUST ADDED: “The Case for Privacy” by David D. Friedman

Sun Dec 03 23:56:29 +0000 2017

RT @nuclearleb: @zeynep @FiloSottile I heard funny theory/fairy tale, that historically magic existed because it was just buffer overflows…

Sun Dec 03 23:59:27 +0000 2017

Replying to @Beautyon_

Also: “Everyone has the right to freedom of opinion and expression; this right includes freedom to hold opinions without interference and to seek, receive and impart information and ideas through any media and regardless of frontiers.”

Mon Dec 04 00:34:09 +0000 2017

RT @ChristopherA: @Beautyon_ Also: “Everyone has the right to freedom of opinion and expression; this right includes freedom to hold opinio…

Mon Dec 04 00:47:31 +0000 2017

RT @zooko: Newsflash! Chip Morningstar just coined the phrase for the Zcash Ceremony 1-out-of-N security property: “Single Point of Success”

Mon Dec 04 00:55:30 +0000 2017

I am more than willing to pay a premium for computers with Intel’s EME replaced with open source and/or permanently disabled. I would also like to know the status of Intel chips on Mac hardware & if applicable remove it from them as well.

Mon Dec 04 01:41:56 +0000 2017

RT @abhijitmajumder: A problem coming up with Aadhaar is that fingerprints, especially of senior citizens, sometimes don’t match as their s…

Mon Dec 04 05:33:31 +0000 2017

RT @EFF: One reason to embrace digital security is to protect your freedom of expression. If you’re taking action in the streets, learn how…

Mon Dec 04 05:47:21 +0000 2017

A fully functional Mac Plus with working display and mouse. Photo is to scale and no Photoshop. #hackaday

Tue Dec 05 01:24:02 +0000 2017

RT @wmclaxton: I just learned that @Humana blocks all non-US IP addresses. Policy holders will NOT be able to reach their insurer when tra…

Tue Dec 05 01:42:39 +0000 2017

RT @perrymetzger: C++17 is officially out. I am reminded of an old quote:

“Perfection is achieved, not when there is nothing more to add,…

Tue Dec 05 01:54:27 +0000 2017

RT @realjeffq: Today I’m publishing a paper on the linkability of certain types of #Zcash transactions: Found that…

Tue Dec 05 05:54:03 +0000 2017

RT @bitstein: I admittedly know little about RSK, but my beef with the hype is that it has the wrong framing of the situation.

Bitcoin doe…

Tue Dec 05 15:43:13 +0000 2017

RT @petertoddbtc: @robep00 @giacomozucco The federation is ultimately just a multisig, where the people controlling the multisig can collec…

Tue Dec 05 15:50:29 +0000 2017

RT @SatoshiLite: Andrew Poelstra posted an update on Confidential Transaction efficiency:

tl;dr Verification of Bu…

Tue Dec 05 18:59:56 +0000 2017

RT @torproject: Privacy is a human right, as stated in Article 12 of the Universal Declaration of Human Rights.

A backdoor to your device…

Tue Dec 05 19:04:45 +0000 2017

I don’t know personally any of the candidates for the W3Cs TAG (Technical Architecture Group) but it is an important (and challenging) role. @lukOlejnik is the only candidate running on a platform focusing on web privacy — I’d prefer that ALL did.

Tue Dec 05 19:11:32 +0000 2017

Replying to @J0hnnyXm4s and @Kyle_DH

They also are not static. Elderly in India are experiencing exclusion in #aadhaar due to age related skin changes. Certain iris recognition changes can happen with LASIK & other eye related surgery.

Tue Dec 05 19:21:12 +0000 2017

Good start on the problem & solution space between stopping “bad” content on the internet & the human rights perils of censorship. A difficult challenge with many possible unintended consequences.

Tue Dec 05 19:31:31 +0000 2017

RT @Blockstream: We have lift-off: Lightning protocol tested on #Bitcoin mainnet: #LightningNetwork

Wed Dec 06 18:53:22 +0000 2017

RT @Snyke: Good news everyone :-p

Wed Dec 06 18:55:19 +0000 2017

RT @Snyke: A giant leap towards the moon: first main-chain test of #lightning buys coffee from #starblocks and an article from yalls in mil…

Wed Dec 06 18:56:18 +0000 2017

Replying to @TuurDemeester and @AriDavidPaul

An interesting point about Zcash is that unlike Bitcoin you can spend from a shielded address multiple times, and probably should always do so. Never spend the full amount or same amounts. However current wallets don’t make coin control easy.

Wed Dec 06 19:06:46 +0000 2017

Replying to @nic__carter

Have a “fake” wallet to give up with less Bitcoin in it?

Thu Dec 07 17:01:21 +0000 2017

“I don’t think these skills are being taught, generally, or at least not in any sort of systematic way.“—@stoweboyd. I agree that this is one of the failures of our current education system. I also believe this to be broader than higher ed—teach ‘em young!

Thu Dec 07 18:42:11 +0000 2017

RT @EFF: Even experienced trainers will find useful information in this series of articles on “Things We Wish We Knew Before We Started Tea…

Thu Dec 07 18:51:47 +0000 2017

RT @Spacekatgal: As I’m running for Congress, I think about the introverts I’ve worked with in tech and how invaluable they’ve been.


Thu Dec 07 19:03:46 +0000 2017

RT @trbouma: Two questions for #SelfSovereignIdentity @darrello

Fri Dec 08 01:38:22 +0000 2017

Replying to @datarade, @NelsonMRosario, @ummjackson, @adam3us, @lopp, @AriMNazir, @el33th4xor, @saifedean, @_Kevin_Pham, @aantonop, @Steven_McKie, @AriDavidPaul and @devilscompiler

That is a pretty high standard. Not sure that even I’d qualify without a lot of effort. What I’d like to see in a lawyer that they can bring THE LAW to first principles—most can’t. Then we can compare principles and design together. @NickSzabo4 went to law school to learn this.

Fri Dec 08 02:08:31 +0000 2017

RT @_Kevin_Pham: @AriDavidPaul @FrederickMunawa @ChristopherA @datarade @NelsonMRosario @ummjackson @adam3us @lopp @AriMNazir @el33th4xor @…

Fri Dec 08 17:40:36 +0000 2017

RT @acinq_co: To celebrate the end of this crazy week, we are finally releasing our ⚡️ Lightning Network Explorer! Enjoy! 🎉…

Sat Dec 09 01:27:49 +0000 2017

Replying to @aniltj, @drummondreed and @manusporny

It my own distinction but I consider the merkle tree technique you are describing to be Data Minimization, not Selective Disclosure. Example:

Sat Dec 09 02:19:18 +0000 2017

Replying to @aniltj, @drummondreed and @manusporny

We have a work item in W3C-CCG to more formalize naming on these, draft of which was done at #RebootingWebOfTrust at

Sat Dec 09 02:20:59 +0000 2017

Replying to @aniltj, @drummondreed and @manusporny

Actually a better example a data minimizing signature is

Sat Dec 09 02:23:26 +0000 2017

RT @roasbeef: @herzmeisterderw @alansilbert @KyleSamani @starkness But yeh hierarchical multi-party channel constructions combined with coo…

Sat Dec 09 17:06:35 +0000 2017

Replying to @datarade, @devilscompiler and @markjeffrey

Answers: A) A quantum strategy for Bitcoin is reasonably well understood—it is somewhat resistant now. B) Constant vigilance against centralization is required—51% is only one attack surface. C) Censorship is a current risk—however at some point Bitcoin becomes too big to censor.

Mon Dec 11 00:06:06 +0000 2017

Replying to @datarade, @devilscompiler and @markjeffrey

Answers: 1/ It all depends on survival rates of forking coins. Pump & dump may always be around just like Nigerian Prince scams. Annoying but not dominant. 2/ Manipulation only is possible because of centralization of holders— see B).

Mon Dec 11 00:10:37 +0000 2017

RT @FiloSottile: My favorite conference of the year, Real World Crypto, is coming up, and it’s in Zurich!

If you (broadly speaking) study…

Mon Dec 11 03:45:59 +0000 2017

Replying to @CharlieThomps0n, @datarade, @devilscompiler and @markjeffrey

However, since addresses it Bitcoin are hashes, they are not subject to Shor’s algorithm until spent. Thus Bitcoin P2PKH and P2SH is less vulnerable. Only the very old P2PK which exposes public keys are. Bitcoin should have more time to respond to quantum attacks.

Mon Dec 11 07:14:12 +0000 2017

Replying to @CharlieThomps0n, @datarade, @devilscompiler and @markjeffrey

P2PKH “Pay to Public Key Hash” most popular kind of Bitcoin address, which is to a hash of a public key. P2SH “Pay to Script Hash” multisig addresses. Quantum does not improve much on breaking hashes. Thus a quantum must break public key <60m between when it is spent & confirmed.

Mon Dec 11 07:27:13 +0000 2017

Replying to @CharlieThomps0n, @datarade, @devilscompiler and @markjeffrey

A warning to folk taking advantage of coin drops. When you spend the coin drop coins you are revealing your public keys on the new chain. Someday a quantum computer may be able to break those in a few days time. Thus you need to move cold coins on main chain to fresh addresses.

Mon Dec 11 07:31:34 +0000 2017

RT @ChristopherA: @CharlieThomps0n @datarade @devilscompiler @markjeffrey A warning to folk taking advantage of coin drops. When you spend…

Mon Dec 11 07:59:35 +0000 2017

Replying to @dizzy_raj, @Marsmensch, @CharlieThomps0n, @datarade, @devilscompiler and @markjeffrey


Mon Dec 11 15:02:41 +0000 2017

Replying to @beatnik_tussler, @CharlieThomps0n, @datarade, @devilscompiler and @markjeffrey

No, Bitcoin will have plenty of warning and will adapt. We already have a pretty good idea what is required. What we don’t need to do is rush — quantum computing, like general purpose AI and fusion may always just another decade away.

Mon Dec 11 15:05:57 +0000 2017

Replying to @midmagic, @BashCo_, @CharlieThomps0n, @datarade, @devilscompiler and @markjeffrey

No, every airdrop requires you to reveal your public keys that are on the main chain. With proper design this may be safe for short term, but not for long-term cold storage. Thus the need to move Bitcoin funds to newly generated root key after taking advantage of drop.

Mon Dec 11 15:10:48 +0000 2017

In board game design, the greatest innovation this decade is in “legacy” games, the first of which took the venerable 1957 Risk war game and gave it new life as “Risk Legacy”. @Appelcline explores this design space in a series of articles, the latest at

Mon Dec 11 21:25:36 +0000 2017

Replying to @TenaciousBTC, @midmagic, @BashCo_, @CharlieThomps0n, @datarade, @devilscompiler and @markjeffrey

Yes, after splitting coin drop but before spending new coins, create a new seed phrase and move your Bitcoin to it. If it is short-term Bitcoin, aka “hot”, you don’t need to do this. But anything that you expect to hold long term, aka “cold” this is the best practice. Be careful!

Mon Dec 11 23:35:41 +0000 2017

RT @propelforward: Repeatedly saying “utility” will not keep the regulator away, or excuse an issuer from compliance. From today’s #SEC Or…

Mon Dec 11 23:42:48 +0000 2017

RT @msantoriESQ: BREAKING: SEC Halts prefunctional token sale

Mon Dec 11 23:46:36 +0000 2017

RT @starkness: @petertoddbtc Tl;dr a whole lot of people should be freaking out right now about their empty “utility token, I swear it’s no…

Mon Dec 11 23:47:46 +0000 2017

Replying to @writergeekrhw

Another challenge of writing in someone else’s IP is they may have unshared plans. Recently did a TV treatment only to find former minor character chosen to be protagonist was being planned to be used in future unannounced movie property.

Tue Dec 12 00:05:39 +0000 2017

RT @HcashOfficial: @QRLedger @nipungupta @CharlieThomps0n @datarade @ChristopherA @devilscompiler @markjeffrey We have a short update on ou…

Tue Dec 12 00:08:34 +0000 2017

Replying to @AlexBenay and @trbouma

Do you want any contributions on the topic of decentralized identity?

Tue Dec 12 00:15:02 +0000 2017

Replying to @KantaraNews and @katrynadow

Link to 1.1? Only 1.0 is listed on website.

Tue Dec 12 00:20:49 +0000 2017

RT @msantoriESQ: 1/ OK HERE WE GO. Today, the SEC today confirmed some of our suspicions about utility tokens. I’ll summarize here in this…

Tue Dec 12 00:31:18 +0000 2017

RT @VitalikButerin: IMO the #1 user experience need for crypto continues to be secure key management solutions. Multisig, scorched earth va…

Tue Dec 12 15:22:25 +0000 2017

Replying to @TenaciousBTC, @midmagic, @BashCo_, @CharlieThomps0n, @datarade, @devilscompiler and @markjeffrey

Yes, you have sold the new coins on exchange. Thus the old coins public keys are now exposed. This is safe for short term, but before cold storage you should move your original funds to a brand new set of keys. Be careful!

Tue Dec 12 15:35:14 +0000 2017

RT @chrismessina: 😢

Tue Dec 12 15:42:49 +0000 2017

RT @francispouliot_: Fundemental ICO flaws that won’t get fixed with “maturity”:

There is no reason for your fundraising token to have uti…

Tue Dec 12 16:05:43 +0000 2017

RT @francispouliot_: There’s a big market need for consulting/devops services to optimize Bitcoin infrastructure. Particularly fees, privac…

Tue Dec 12 19:09:00 +0000 2017

Replying to @francispouliot_

I’ve been thinking about forming a Blockchain Guild, with apprenticeship, journeymen, masters, all paid by bounties in Bitcoin and transparent to funders through xpub and git voting.

Tue Dec 12 19:11:10 +0000 2017

Replying to @francispouliot_

I don’t want us to repeat the mistake of Heartbleed — SSL/TLS had most of the top cryptographers & protocol engineers in the late 90s. But by 2012 a bug crept in 60% of all servers, maintained by 1/4 FTE engineer. Not discovered until 2014! Long term support of commons required!

Tue Dec 12 19:16:12 +0000 2017

Replying to @Omittence, @francispouliot_ and @theonevortex

Tue Dec 12 19:17:45 +0000 2017

Replying to @jimmysong and @francispouliot_

I have the domain, been thinking on how to to create transparent & participatory governance. See, and in particular my terminology summary at top.

Tue Dec 12 19:20:29 +0000 2017

Replying to @jimmysong and @francispouliot_

I have also have a few Bitcoin donations already

Tue Dec 12 19:22:18 +0000 2017

RT @jimmysong: @ChristopherA @francispouliot_ If you form one, please let me know. I have lots of potential apprentices to send your way.

Tue Dec 12 19:22:33 +0000 2017

RT @ChristopherA: @francispouliot_ I don’t want us to repeat the mistake of Heartbleed — SSL/TLS had most of the top cryptographers & proto…

Tue Dec 12 19:24:01 +0000 2017

Replying to @jimmysong and @francispouliot_

I’m willing to commit to pay out 0.5 BTC in bounties for pull requests to from apprentices conforming sections & updating to 15.1, and another 0.5 Bitcoin to a Journeyman to propose and write a simple RPC app that also libwally to add to tutorial.

Tue Dec 12 19:34:57 +0000 2017

Replying to @bswen and @francispouliot_

I would think there is a role for that. Part of the governance questions.

Tue Dec 12 19:36:03 +0000 2017

Replying to @francispouliot_

For now, I’ve created a github community

Tue Dec 12 20:06:33 +0000 2017

RT @ChristopherA: @francispouliot_ For now, I’ve created a github community

Tue Dec 12 20:10:31 +0000 2017

Replying to @jimmysong and @francispouliot_

For now, if you’d like to participate in establishing this Blockchain Guild, write an introduction to yourself, what your skills are, and what you are interested in, and then fork repo and create a Pull Request to — consider this the first apprentice test.

Tue Dec 12 20:29:06 +0000 2017

RT @ChristopherA: @jimmysong @francispouliot_ For now, if you’d like to participate in establishing this Blockchain Guild, write an introdu…

Tue Dec 12 20:30:05 +0000 2017

Replying to @brunocvcunha, @jimmysong and @francispouliot_

Tue Dec 12 20:30:38 +0000 2017

Replying to @Carsten71071425, @francispouliot_ and @giacomozucco

Tue Dec 12 20:31:02 +0000 2017

Replying to @jtarre and @francispouliot_

Tue Dec 12 20:31:16 +0000 2017

Replying to @rafaplas, @Kevin_Pham, @jimmysong and @francispouliot

Tue Dec 12 20:31:28 +0000 2017

Replying to @MatthewZipkin, @jimmysong and @francispouliot_

I’m am seeking more examples like that, but you’ll see at the bottom of my tutorial doing in it C. We need more C, C++, and other language examples of using bitcoind with best library practices.

Tue Dec 12 20:32:30 +0000 2017

Replying to @BitcoinAlley, @jimmysong and @francispouliot_

My Bitcoin command-line tutorial is a good start. Then

Tue Dec 12 20:33:01 +0000 2017

Replying to @AmeerRosic, @bradmillscan, @TuurDemeester, @jimmysong, @francispouliot_ and @Blockgks

Tue Dec 12 20:33:29 +0000 2017

Replying to @RobMRivera, @theonevortex and @francispouliot_

Tue Dec 12 20:33:45 +0000 2017

Replying to @redbeardCrypto, @theonevortex and @francispouliot_

Tue Dec 12 20:33:56 +0000 2017

Replying to @theonevortex

Tue Dec 12 20:39:08 +0000 2017

Replying to @bswen and @francispouliot_

Can you do github basics? You don’t have to be an engineer to fork and do pull requests.

Tue Dec 12 20:39:55 +0000 2017

I’ve started a GitHub community for a participatory & transparent Blockchain Guild where members can participate in learning & supporting needed technical infrastructure, earning through bounties:

Tue Dec 12 21:08:37 +0000 2017

I’ve added the first three bounties, totaling 1.5 BTC, suitable for apprentice or journeyman class coders:

Tue Dec 12 21:30:49 +0000 2017

RT @ChristopherA: I’ve added the first three bounties, totaling 1.5 BTC, suitable for apprentice or journeyman class coders:…

Tue Dec 12 21:37:01 +0000 2017

If there others that would like to offer bitcoin bounties for some initial experimental Blockchain Guild projects, I’m willing to set up a donation addresses that are transparent to the patrons through xpub keys. Longer term the community will need to evolve escrow practices.

Tue Dec 12 21:39:24 +0000 2017

RT @ChristopherA: If there others that would like to offer bitcoin bounties for some initial experimental Blockchain Guild projects, I’m wi…

Tue Dec 12 21:39:44 +0000 2017

Replying to @brunocvcunha, @jimmysong and @francispouliot_

This sounds great—@Appelcline & I never quite got to the point where we were comfortable with exactly what needed to be taught here. @kallewoof chose to start his course with regtest, but he had forked bitcoin and had students recompile to simulate early POW. Open to ideas!

Tue Dec 12 22:42:15 +0000 2017

Replying to @SatoshiLite

Do you want to post a bounty for better atomic cross-chain swap code? Some test code? A security review? A merge?

Tue Dec 12 23:07:26 +0000 2017

Replying to @zooko

Do you have any bounties that you’d like to post that works on multiple chains?

Tue Dec 12 23:08:04 +0000 2017

Replying to @JoukoSalonen and @inlandDesign

Yes, I would like Guild to be able to take on these type of things. For instance I know that there was some talk at last #RebootingWebOfTrust on how to fund developing BTC version of DIDs (Ethereum version is funded by Consensys) and w/o ICO.

Wed Dec 13 06:05:34 +0000 2017

Replying to @komhar_ and @francispouliot_

I personally am not interested in 99.9% of ICOs, coin drops, etc. Someday we may have a way to have ECO “Ecosystem Coin Offering” without the centralization of ICOs, more interested then.

Wed Dec 13 06:09:30 +0000 2017

RT @yesmagazine: Has callout culture gone too far?

Wed Dec 13 06:14:53 +0000 2017

RT @Snyke: Very good video about #Lightning I’ll refer all new users to:

Wed Dec 13 16:38:46 +0000 2017

RT @davetfields: @NelsonMRosario @pierre_rochard @eric_lombrozo @aantonop @ChristopherA Right. If money is speech than the adoption of bit…

Wed Dec 13 17:08:42 +0000 2017

Replying to @JoukoSalonen and @inlandDesign

uPort is part of the community building international standards in the W3C for this kind of thing. This includes decentralized Identifiers (DIDs), verifiable credentials, and more. See We meet Tuesdays & virtual hackathon week of Jan 15

Wed Dec 13 17:13:58 +0000 2017

Replying to @JoukoSalonen and @inlandDesign

Some of our members are advisors to the Estonian IDs, British Columbia, United Nations, and more.

Wed Dec 13 17:15:18 +0000 2017

RT @ljxie: Remember the people who helped you learn about bitcoin and cryptocurrencies when you first started. There’s a lot of new people…

Wed Dec 13 17:16:17 +0000 2017

RT @VitalikButerin: So total cryptocoin market cap just hit $0.5T today. But have we earned it?

Wed Dec 13 17:19:53 +0000 2017

RT @VitalikButerin: How many unbanked people have we banked?

Wed Dec 13 17:20:35 +0000 2017

RT @VitalikButerin: How much censorship-resistant commerce for the common people have we enabled?

Wed Dec 13 17:20:37 +0000 2017

RT @VitalikButerin: How many Venezuelans have actually been protected by us from hyperinflation?

Wed Dec 13 17:20:46 +0000 2017

Replying to @sonnybyrd and @pierre_rochard

Start just learning how to use bitcoind properly from command line:

Wed Dec 13 19:49:17 +0000 2017

Replying to @sonnybyrd and @pierre_rochard

From there apply your skills to learn and improve tools for Bitcoin-Core. Consider taking on a small project — There is still need for better JavaScript libraries as JavaScript security is difficult.

Wed Dec 13 19:51:59 +0000 2017

Two Ledger Wallets, a CryptoSteel, a fast USB HD, a fireproof home safe & a safe deposit box is what I recommend in my personal procedures for safest cold storage of cryptographic currencies.

Wed Dec 13 20:26:55 +0000 2017

Replying to @real_or_random

I have been working on a technique random cryptographic seed to scientifically designed memorable iambic pentameter poem. But doesn’t solve problem for your heirs.

Wed Dec 13 20:39:58 +0000 2017

Replying to @real_or_random

For instance: “the hazards of bliss are pleasing the lounge
unfair was cinnamon to search and scrounge
the stained vibrant lasers give us lectures
prayer saves the valley from conjectures”

Wed Dec 13 20:41:30 +0000 2017

Replying to @SLOTR and @TuurDemeester

Yep. Home fireproof safes are designed for paper and smaller fires at best. Thus my procedure recommends you put CrypoSteel in safe deposit box. With melting point of 1200C, in an fireproof liner, in a vault, it should survive.

Wed Dec 13 20:56:58 +0000 2017

Replying to @udiWertheimer

To make a fresh bootable copy of your OS, Chrome, and Ledger plug-in. Helps address issue of bitrot and certain kinds of systemic or active attacks.

Wed Dec 13 20:59:05 +0000 2017

Replying to @udiWertheimer

I’m working on a series of procedures for different scenarios and skill levels. The Ledger & Cryptosteel version is the simplest.

Wed Dec 13 21:30:12 +0000 2017

Replying to @JohnYossarian11 and @TuurDemeester

This particular procedure is for significant (say >5% of liquid net worth), and long term assets for cold storage, not trading. For you, an encrypted recovery phrase stored on Dropbox, and maybe unencrypted waterproof paper & a permanent marker could make sense.

Wed Dec 13 21:34:40 +0000 2017

Replying to @SethZero1, @SLOTR and @TuurDemeester

I should have said just a home safe. Home safe holds only encrypted or pin protected recovery phrase and helps against casual theft & minor fires. For real disaster resistance is the safe deposit & Cryptosteel

Wed Dec 13 21:37:44 +0000 2017

Replying to @nirvanadev and @udiWertheimer

Part of reason I’m not currently recommending Electrum for the simple scenario is that it is too new and has approaches that are unique & non-standard to it (so far).

Wed Dec 13 21:39:56 +0000 2017

Replying to @nirvanadev and @udiWertheimer

Consider contributing a bounty to BlockchainGuild to gather some requirements, seek a starting consensus, and write up some BIPS?

Wed Dec 13 22:36:25 +0000 2017

Replying to @BTCHillbilly and @aantonop

I’m not a big fan of paper wallets due to sources of random. In my procedure, the master key is generated strongly & never resides on your computer. But I have no problem with using a Ledger w/o network to create & engrave a private key & address in steel and then reset Ledger.

Wed Dec 13 22:41:36 +0000 2017

Replying to @petertoddbtc and @benjaminjwhitby

I’ve been writing up some procedures for this type of stuff, including a sample letter to loved ones about what to do. Hope to open source it soon.

Thu Dec 14 00:31:54 +0000 2017

Replying to @tupotch and @petertoddbtc

I’d love some opinions on various state laws on safe deposit boxes. I know the differ hugely. Goal is to share some best practices.

Thu Dec 14 00:33:47 +0000 2017

Replying to @KamesCG and @petertoddbtc

Multisig & time locks and other techniques for digital asset management I call #SmartCustody. Working on a course to teach about it Q1.

Thu Dec 14 00:39:05 +0000 2017

Replying to @therealtoktok and @petertoddbtc

The simplest #SmartCustody is to give your executor a Cryptosteel. Have your Bitcoin assets in a single key but with CLTV timelock to the executor’s key a year from today. Just move the Bitcoin to a new address <1 year and their key can’t be used until you don’t move funds.

Thu Dec 14 00:43:40 +0000 2017

Replying to @KamesCG and @petertoddbtc

I hold the domain.

Thu Dec 14 00:45:04 +0000 2017

RT @NISTcyber: Gone away is the password,
Multi-factor is the new word!
Secure your accounts, easy as it sounds,
Walking in a multi-factor…

Thu Dec 14 01:21:29 +0000 2017

RT @ChristopherA: @therealtoktok @petertoddbtc The simplest #SmartCustody is to give your executor a Cryptosteel. Have your Bitcoin assets…

Thu Dec 14 01:42:29 +0000 2017

RT @kallewoof: Stand-alone Bitcoin Script Debugger.

Thu Dec 14 01:43:23 +0000 2017

RT @kallewoof: @MandelDuck Yeah, I failed to reply so it got detached:

Thu Dec 14 01:43:57 +0000 2017

I’m preparing some advice & procedures on some best practices for storage of digital assets like Bitcoin. However, I need a good disclaimer at the top. Has anyone spotted a good disclaimer for this type of advice?

Thu Dec 14 01:49:54 +0000 2017

This is a nice find! Some recovery phrases are < 24 characters (in particular @GreenAddress encrypted master seed) so I’ve been recommending engraving on these a steel tile. A titanium tile may be superior. I also recommend this battery-operated engraver:

Thu Dec 14 03:33:29 +0000 2017

Replying to @johnnyhondak20

This is also carefully detailed in my recommended digital asset backup process. It can also be useful to not put all your cold coins on one address, but be careful of Process Fatigue. You should also test a transaction OUT at least once before transferring significant value.

Thu Dec 14 03:36:28 +0000 2017

Replying to @iam_chrisfranz

I keep one in both locations (home safe and in safe deposit box with unencrypted master seed). If 1st lost, I can still remove 2nd from box and use it before going all the way back to seed. Also, my unsophisticated heir knows my PIN, and can use it to get help to recover.

Thu Dec 14 03:41:11 +0000 2017

Replying to @SnuffyJoesnuffy and @TuurDemeester

Maybe. I don’t disclaim in most cases. But someone could put a significant amount of coins using my advice and I don’t want to be an easy target. The advice is free so “use at own risk”.

Thu Dec 14 03:43:48 +0000 2017

RT @manusporny: Credentials CG discusses DID Hackathon, DID Spec Changes, planning for next year: #w3c #ccg

Thu Dec 14 05:49:11 +0000 2017

Replying to @ianc and @johnnyhondak20

The best practices should not reuse addresses, nothing about reusing wallets. Most modern wallet software and hardware will give you multiple addresses. Send your wallet some funds, see that it has arrived, send it back out, see that it sends. See that both are confirmed.

Thu Dec 14 23:15:19 +0000 2017

Replying to @benjaminjwhitby, @bitcoinmom, @pamelawjd, @_drgo and @petertoddbtc

It is called the Google Inactive Account manager:

Thu Dec 14 23:16:41 +0000 2017

Replying to @canadense and @stile65

Overly sharing the mnemonic means each of your friends could have a casual thief steal your money. Are they using the same care and due diligence you are for that envelope as you do?

Thu Dec 14 23:18:16 +0000 2017

Replying to @ianc and @johnnyhondak20

Technically when you test an output transaction of a paper wallet address, you can send the change back to the original address. This is, however, a bad practice for long term cold storage as you have now revealed your public key.

Fri Dec 15 06:28:30 +0000 2017

RT @janeygak: @ChristopherA FYI- your Learning Bitcoin from the CLI instructions for setting up a testnet bitcoin node worked perfectly on…

Fri Dec 15 22:25:40 +0000 2017

Replying to @bascule and @moxie

They want to use Intel’s SGX, which scares me. Big honeypot & questionable history.

Fri Dec 15 23:16:19 +0000 2017

RT @IdentityWoman: These are great questions for us and our work on the Amira use case and all Self-Sovereign identity work. @digitalsista…

Sat Dec 16 06:17:13 +0000 2017

Replying to @AnthonyKarrick, @Blockstream and @notgrubles

The current deployment is focused on downloading transactions to be able to run a validating full node. Uplink of transactions to satellites is on roadmap. Outgoing transactions are small, so today you can send a transaction via SMS. @NickSzabo4 is working on ham radio equivalent

Sat Dec 16 18:20:47 +0000 2017

👍👍 A compressive report on lessons from India’s #aadhaar national digital identity system. “The core essays offer broad and complementary perspectives on the practices, persistent vulnerabilities, and implications for design of digital identity systems.”

Sat Dec 16 23:20:44 +0000 2017

RT @kate_sills: To solve these problems, some tech people have rallied behind self-sovereign identity - the idea that each individual has c…

Sun Dec 17 03:06:50 +0000 2017

RT @kate_sills: If a person consistently treats people badly, I think it’s fair for the mistreated parties to warn other people. The questi…

Sun Dec 17 03:06:54 +0000 2017

r/compressive/comprehensive/ —<grumble>auto-correction</grumble>

Sun Dec 17 05:19:20 +0000 2017

RT @JewelStaite: Disney buying Fox has resurged the whole people asking me if there will be a season 2 of Firefly, but all I’m thinking is…

Mon Dec 18 03:21:43 +0000 2017

RT @lukOlejnik: Are all web browsers in breach of #GDPR? @W3C specification not supporting specifying a purpose when asking for access to g…

Mon Dec 18 03:26:19 +0000 2017

Replying to @BitcoinErrorLog, @francispouliot_, @Beautyon_ and @NotGoxed

I’m very tired of “sage on stage” conferences, especially when the audience is often smarter than sage. There are other formats: I have had great results with design workshops—create something together! Open space can be useful. Pechu Kucha. Book sprint. Facilitate inquiry. More!

Mon Dec 18 16:33:07 +0000 2017

RT @ChristopherA: @BitcoinErrorLog @francispouliot_ @Beautyon_ @NotGoxed I’m very tired of “sage on stage” conferences, especially when the…

Mon Dec 18 16:33:32 +0000 2017

RT @iam_preethi: I agree w/ this for most products, but I’d argue that for crypto projects aimed at building entirely new systems/protocols…

Tue Dec 19 08:16:06 +0000 2017

RT @seikatsu: “We’re planning to launch estcoin — and that’s only the start” by @kasparkorjus

Tue Dec 19 08:34:46 +0000 2017

Replying to @windley

This was my first microcomputer, an IMSAI 8080 in 77. We could not afford a ROM so loaded machine-language bootloader via front switches, which loaded paper tape reader driver, which loaded Altair BASIC by Gates & Allen—it was a big deal when we could save BASIC to cassette tape.

Tue Dec 19 21:57:33 +0000 2017

RT @Rainmaker1973: #Today in 1974, the pioneering Altair 8800 was first put on sale in the U.S. as a DIY computer kit for $397…

Tue Dec 19 21:58:09 +0000 2017

RT @ChristopherA: @windley This was my first microcomputer, an IMSAI 8080 in 77. We could not afford a ROM so loaded machine-language bootl…

Tue Dec 19 21:58:29 +0000 2017

Replying to @windley

Same year Star Wars came out. Both huge influences on a 16 year old.

Tue Dec 19 21:59:37 +0000 2017

On @TheLTBNetwork podcast, South African @_shaunconway discusses Unicef blockchain ideas & how to use this tech to offer more transparent humanitarian projects. Shaun has been active in #RebootingWebOfTrust.

Tue Dec 19 22:20:10 +0000 2017

RT @pwuille: Does anyone have a registration left for RWC2018 Zürich? It seems I’m too late…

Tue Dec 19 23:51:13 +0000 2017

Replying to @FredWeigel, @johnnyhondak20, @SLOTR and @TuurDemeester

Unfortunately the ColdTI Kickstarter failed, the website appears to be down, and doesn’t have a copy as robots.txt has been set on the website as of November 25 2017. I suspect they are out of business.

Wed Dec 20 20:07:03 +0000 2017

Replying to @timpastoor


Sun Dec 24 23:00:08 +0000 2017

RT @Blockstream: O Merkle tree, O Merkle tree,
How verifiable are thy branches!
Your proofs are computationally easy and fast,
Sending mini…

Tue Dec 26 16:52:07 +0000 2017

RT @ProductHunt: Me: you shouldn’t tweet that

Inner Me: Do it anyway

Tue Dec 26 18:17:43 +0000 2017

Replying to @tqbf

I disagree. I was trying to license the Merkle Tree patents in 2000-01 for microcurrency project at Certicom, and POW was certainly on the agenda. I also tried to license Schnorr. It was largely patents & prior failures of digital currency startups that stopped many of us.

Tue Dec 26 19:24:47 +0000 2017

Replying to @tqbf

I tried to raise some startup money in 2004 for a smart contracts & DAC startup. See Solution #3 in VCs were not interested because of failures in Digicash & other cryptographic microcurrency startups.

Tue Dec 26 19:30:51 +0000 2017

Replying to @tqbf

The key innovation of Satoshi was not code — all existed before. Its success was due to a combination of putting it all together into a well balanced package, a brilliant incentive & meme design, and great timing post 2008 crash & expiring patents.

Tue Dec 26 19:34:26 +0000 2017

RT @ChristopherA: @tqbf I disagree. I was trying to license the Merkle Tree patents in 2000-01 for microcurrency project at Certicom, and P…

Tue Dec 26 22:32:20 +0000 2017

RT @ChristopherA: @tqbf I tried to raise some startup money in 2004 for a smart contracts & DAC startup. See Solution #3 in…

Tue Dec 26 22:32:25 +0000 2017

RT @ChristopherA: @tqbf The key innovation of Satoshi was not code — all existed before. Its success was due to a combination of putting it…

Tue Dec 26 22:32:30 +0000 2017

RT @kyletorpey: Interesting blog post from @adam3us where he recommends engineers at Bitcoin companies request the amount saved in fees for…

Tue Dec 26 22:33:48 +0000 2017

RT @kwerb: Ain’t it always the truth?

Timing is the factor entrepreneurs universally under-estimate, because they can’t control it. https…

Tue Dec 26 22:43:44 +0000 2017

Replying to @DennisPortoMD and @tqbf

Memes are ideas that propogate themselves—it is possible to design memes to do this more effectively. Bitcoin fit well into the memes of early adopter cypherpunks which encouraged its development. Satoshi exemplified HODL which gave Bitcoin its first value. Occupy fit well in ‘11

Tue Dec 26 22:51:58 +0000 2017

Replying to @NelsonMRosario and @tqbf

Mostly the Merkle patents, the first expired 2002 but other related over next few years. We all wanted to use Schnorr which expired in 08 but ultimately Bitcoin didn’t use it as didn’t have as solidly reviewed code due to patent. Bitcoin will hopefully be moving to Schnorr soon.

Tue Dec 26 22:59:09 +0000 2017

Replying to @DennisPortoMD and @tqbf

I have an old slideshare on the topic of memes, memeplexes, and memetics at

Tue Dec 26 23:14:46 +0000 2017

Replying to @DennisPortoMD and @tqbf

I definitely believe that Bitcoin was carefully memetically designed. Beyond the obvious incentive design of mining, the choice of wording and the manifesto to fit existing cypherpunk memes, the genesis block message, the mysterious anonymous inventor, etc. were perfect for 2008.

Tue Dec 26 23:19:07 +0000 2017

Replying to @loftexperience and @tqbf

I don’t think any of us predicted how fast ASIC hardware based PoW would take off.

Tue Dec 26 23:46:02 +0000 2017

Replying to @amyjokim

I prefer @Michele_Pax’s “Six Enduring Desires”, as these are things that people will sacrifice Maslow’s comforts to have: meaning, purpose, value, connection, resilience and transcendence.

Wed Dec 27 00:01:15 +0000 2017

RT @adam3us: @ChristopherA @loftexperience @tqbf it is a truism that “hardware wins” (over software), and Bitcoin amplifies that by being a…

Wed Dec 27 00:02:04 +0000 2017

RT @adam3us: @ChristopherA @loftexperience @tqbf considering hashcash design variants, including artificial complexity to make ASICs harder…

Wed Dec 27 00:02:07 +0000 2017

RT @frandallfarmer: I worked on this proposal - if it applies to you, please support it: #mmo #virtualworlds #aband…

Wed Dec 27 00:44:27 +0000 2017

I have high hopes for this movie. My 3rd grade teacher (Miss Hudson) read “A Wrinkle in Time” to us in class, and I have been hooked on science fiction ever since. I can remember shivering when I heard her narrating the Witches announcing “We are here!”

Wed Dec 27 00:56:36 +0000 2017

Replying to @SailingDigital, @tqbf and @timberners_lee

The patent holders were using it exclusively for time signatures, and were not interested in other uses. They made Merkle Trees uneconomical for anyone else to use them. Which is why no one did until they all finished expiring in 2008.

Wed Dec 27 01:02:13 +0000 2017

RT @NickSzabo4: @ChristopherA @loftexperience @tqbf That said, although we certainly did think about scalability, you are right that we sel…

Wed Dec 27 06:53:10 +0000 2017

RT @NickSzabo4: @ChristopherA @loftexperience @tqbf Dunno who read this back in the day, but “unless the opponent has a very low budget and…

Wed Dec 27 06:53:16 +0000 2017

Replying to @jwindawi, @SailingDigital, @tqbf and @timberners_lee

The base Merkle Tree patent was filed in ‘78, published in ‘82, expired in ‘02, but there were several other associated patents, the last of which I believe expired in 2007 or 2008.

Wed Dec 27 18:44:31 +0000 2017

Replying to @PLT_cheater, @NelsonMRosario and @tqbf

I wrote a bit about Schnorr Signatures a few years ago as a pre-reading to the first #RebootingWebOfTrust:– — Since then add recent work on aggregated signatures by Wuille and see Andrew Poelstra’s work on Scriptless Scripts.

Wed Dec 27 19:21:26 +0000 2017

Replying to @AnthonyKarrick, @Blockstream, @notgrubles and @NickSzabo4

For @eiaine & @NickSzabo4’s efforts see

Wed Dec 27 19:23:39 +0000 2017

RT @mikejcasey: We can and should update our identity systems for the digital age. But as @ChristopherA repeatedly reminds us, whatever des…

Wed Dec 27 21:18:52 +0000 2017

RT @cloud_concepts: @mikejcasey @ChristopherA @jordanbpeterson Basically a society will excel when as many individuals as possible all do t…

Wed Dec 27 21:58:29 +0000 2017

RT @TuurDemeester: As a student in ‘09 and ‘10, I spent a lot of time researching fraud and fraud cycles. Glad I have that background becau…

Thu Dec 28 03:06:28 +0000 2017

RT @TuurDemeester: @ClairWholeanAIA @NickSzabo4 I’ve described this in my follow-up paper as the “acceleration theorem”:…

Thu Dec 28 03:06:33 +0000 2017

RT @trentmc0: We will sometime look to the past and recognize borders, passports and visas as the unjust practice they are. Why should I ha…

Thu Dec 28 03:48:27 +0000 2017

RT @aniltj: “Trusted Digital Identity — Implementation Approaches” by @trbouma

Sat Dec 30 00:03:50 +0000 2017

RT @Steve_Lockstep: @aniltj @trbouma For completeness, I’d add that the adequacy of claims, and of the verification of claims, is a decisio…

Sat Dec 30 00:03:53 +0000 2017

RT @Steve_Lockstep: @aniltj @trbouma Consider payment cards, especially PIN-less contactless. The merchant is never 100% sure the customer…

Sat Dec 30 00:04:00 +0000 2017

RT @scalzi: If you were needing a new year’s resolution for 2018, I have three for you:

  1. Register to vote if you have not;

  2. Check you…

Sat Dec 30 03:16:46 +0000 2017

RT @jlppfeffer: I just published the latest version of “An (Institutional) Investor’s Take on Cryptoassets”

Sat Dec 30 08:38:07 +0000 2017

RT @YBhutwala: I just finished reading @aantonop’s Mastering Bitcoin. Next up: @jimmysong’s programming blockchain seminar and @Christopher…

Sun Dec 31 01:20:05 +0000 2017

I concur: 👍 “At best, in voting, Blockchain can be a ledger that helps us track the voting metadata. …it’s questionable whether you need a full Blockchain. …We just need Merkle trees and hash chains. And we’ve had those for 30 years.”

Sun Dec 31 04:45:04 +0000 2017

RT @benadida: … my thoughts on this aren’t novel, discovering prior work as the discussion unfolds, notably by @random_walker –

Sun Dec 31 04:45:39 +0000 2017

RT @udiWertheimer: @LukeDashjr There’s a lot of new/updated wallet software coming out all the time (mostly because new shitforks/shitcoins…

Sun Dec 31 06:05:41 +0000 2017

RT @rmhrisk: @ChristopherA “Blockchain” and the associated consensus models have value but people often fall prey to the old adage of “when…

Sun Dec 31 17:30:11 +0000 2017