Here is a short 56s video about my Vision for the Future of #SmartContracts (excerpt from my @blockchainU lecture):

Fri Apr 01 21:30:58 +0000 2016

@VitalikButerin Are you available for another #RebootingTheWebOfTrust style event weekend after the in NY? 5/21 & 22

Fri Apr 01 21:39:40 +0000 2016

RT @antony_btc: What do people mean when they say “Blockchains are immutable”? #bitcoin #blockchain…

Sat Apr 02 00:42:29 +0000 2016

“we can either follow a regulatory path that burdens…or…to encourage…investment & innovation. I favor the latter”

Sat Apr 02 00:49:25 +0000 2016

I like the creative risks these dancers took, and I appreciate them sharing this powerful message:

Sat Apr 02 04:40:54 +0000 2016

Hmm, writing DNA using Verilog to create AND & OR gates. When do we start doing crypto?

Sat Apr 02 07:06:42 +0000 2016

AI first wins Tic-Tac-Toe, then Checkers, Chess, and most recently Go. And now Rock Paper Scissors!

Sat Apr 02 07:13:19 +0000 2016

An important long read that connects ideas from sustainability about power dynamics and applies them to blockchain

Sat Apr 02 07:35:50 +0000 2016

Maybe we need to change our language from censorship-resistance and permissionless to power-resistant (or balancing) & inequality-resistant.

Sat Apr 02 07:37:21 +0000 2016

RT @browningphilip1: @ChristopherA trustless is also a misnomer! We should be seeking to build trustful systems (that comprise on and off b…

Sat Apr 02 17:26:57 +0000 2016

Replying to @cartazio

I’ve heard of hopper recently but not sure where. Tell more?

Sun Apr 03 04:32:16 +0000 2016

Does Dunbar’s Number apply to non-human herd animals (e.g. baboons, chimpanzees, etc)? by @ChristopherA

Sun Apr 03 21:58:07 +0000 2016

The official announcement of my joining Blockstream is starting to be picked up by the press…

Tue Apr 05 22:33:32 +0000 2016

Replying to @coindesk

Thanks for the headline ;-)

Tue Apr 05 22:34:12 +0000 2016

RT @Melt_Dem: i love this announcement! @ChristopherA joining @Blockstream to create standards to “grow the pie, not slice it”


Tue Apr 05 22:34:48 +0000 2016

RT @Blockstream: Welcome @ChristopherA! Glad to have your expertise on future cross-industry collaborations & standardization efforts https…

Tue Apr 05 22:34:55 +0000 2016


.@1cyrilblanc1 @coindesk I write about public good & commons some in my blog post:

Wed Apr 06 00:14:40 +0000 2016

RT @drummondreed: Congrats to @ChristopherA — this is big news for the growth of the blockchain ecosystem.

Wed Apr 06 13:51:52 +0000 2016

“The Panama Papers show how vital encryption is…”

Wed Apr 06 14:00:50 +0000 2016

New post: “What I like about the kinds of collaboration that are possible even inside a competitive industry”

Wed Apr 06 14:14:06 +0000 2016

RT @ARKblockchain: Woah - #Blockstream hired the dev who helped #Netscape develop SSL! Congrats @ChristopherA https…

Wed Apr 06 14:55:55 +0000 2016

Regarding the #PanamaLeaks: As a society we need a balance between transparency and privacy. ZK & #blockchain tech can potentially do both.

Wed Apr 06 16:46:18 +0000 2016

@dsearls can you come to at UN on May 2Oth or support technical design workshop after? Decentralized Identity focus.

Wed Apr 06 17:21:59 +0000 2016

Hmm, look who Twitter is recommending that I follow:

Wed Apr 06 18:08:34 +0000 2016

RT @profjasonpotts: Participatory ecosystem - nice post by @ChristopherA

Wed Apr 06 20:25:30 +0000 2016

RT @veorq: new release of Argon2, the password hash winner of PHC
thanks to all the contributors!

Wed Apr 06 20:37:01 +0000 2016

RT @halindrome: Cooperation is good, but growing the pie through coopetition (and Open Standards) is good too! @ChristopherA…

Wed Apr 06 21:28:40 +0000 2016

RT @zooko: @ChristopherA I like it. Congrats on joining Blockstream! I hope you-all and we will collaborate productively in the near future…

Thu Apr 07 04:37:46 +0000 2016

RT @austinhill: Explaining 2w pegged sidechains to VCs:Like a BTC frozen in carbonite:revived by Leia w/ ZeroKnowledge blind proof https://…

Fri Apr 08 17:27:31 +0000 2016

I will be in Portland tomorrow evening (Sunday) at the Benson, gathering a few friends to talk intersection of B-Corps and Smart Contracts.

Sat Apr 09 17:40:25 +0000 2016

RT @koeppelmann: How to sue a DAO? Lets first appreciate why NOT to sue a DAO: Because it would by definition never break a promise/contrac…

Sat Apr 09 17:42:55 +0000 2016

So if you want to move your CA US banking accounts to a more progressive local firm and away from giants, how do you evaluate them? Links?

Sat Apr 09 19:59:54 +0000 2016

.@stattenf Know of any good credit unions in East Bay I might qualify for? And I’d love to hear about your bias :-)

Sat Apr 09 20:06:22 +0000 2016

RT @zmanian: @ChristopherA @stattenf The infosec practices are credit unions terrify me. At least the evil banks have competent teams and b…

Sat Apr 09 20:42:48 +0000 2016

Replying to @zmanian and @stattenf

I come back to my original question—where can we find quality evaluations of small banks practices, local & fiscal.

Sat Apr 09 20:54:13 +0000 2016

#qotd “Art celebrates beauty & the glory of mankind’s role in it—science’s job is to make us humble.”—Christopher Allen, @radiolab inspired

Sat Apr 09 21:51:21 +0000 2016

+1 “To be a key strategic ally…clarity matters…But you should also be clear about what you’re committing to.”

Sun Apr 10 00:16:42 +0000 2016

.@reidhoffman I found @StanLeopard’s articulation of difference between a mentor & a strategic advisor also useful:

Sun Apr 10 00:21:21 +0000 2016

I have been suspicious about the emotional interpretation of some emoji for some time. This confirms it: 😁

Sun Apr 10 00:43:08 +0000 2016

RT @austinhill: Bitcoin and the Rise of the Cypherpunks by @lopp Great overview of cypherpunk evolution

Sun Apr 10 14:45:39 +0000 2016

RT @austinhill: Exponential tech requires massive education: incremental changes are easy,exponential changes require time (bitcoin) https:…

Mon Apr 11 22:33:26 +0000 2016

RT @futureidentity: The Certificate Transparency Internet Draft is out, from the #IETF: Goal is to make bad PKI beh…

Mon Apr 11 22:56:42 +0000 2016

RT @BernieRihn: @petertoddbtc not if linked with identities… i can’t tell if this is huge or vaporware… i’m frustrated at the lack of i…

Mon Apr 11 23:37:14 +0000 2016

Replying to @BernieRihn and @petertoddbtc

PoET does assume trusted nodes, the CreateTimer message is signed by the TEE. Permissionless side of permissioned.

Mon Apr 11 23:37:45 +0000 2016

Replying to @BernieRihn and @petertoddbtc

…also, interestingly, signed means that you could use a non-SGX TEE, provided that the validators accept signature

Mon Apr 11 23:40:54 +0000 2016

At Intel today, looking deeper at IntelLedger. PoET is subtler than I thought—some permissionless-like properties for a permissioned system.

Mon Apr 11 23:47:29 +0000 2016

Replying to @BernieRihn and @petertoddbtc

Talked to the PoET team today, they had some good answers. Needs deep review but worthy of investigation.

Mon Apr 11 23:49:17 +0000 2016

Replying to @BernieRihn and @petertoddbtc

Key thing is PoET is not a replacement for PoW in a permissionless system. It offers ~O(N) to permissioned.

Mon Apr 11 23:53:14 +0000 2016

RT @rusty_twit: Finally, my #lightning prototype uses SegWit for anchor txs!

Tue Apr 12 16:12:47 +0000 2016

Ikigai 生き甲斐 is a Japanese concept meaning “a reason for being”. Everyone, according to the Japanese, has an ikigai.

Wed Apr 13 04:49:09 +0000 2016

A top-notch illustration and animation by my friend @kelvy_bird — I would like to see blockchain concepts this way!

Wed Apr 13 05:29:52 +0000 2016

It is both a human and computational consensus problem. It is why we make such a big deal about marriage & divorce.

Wed Apr 13 19:21:30 +0000 2016

RT @sustainableMBA: Business doesn’t seem to value long term vision and instinct anymore. We incentivize the opposite: short term gains and…

Wed Apr 13 20:35:42 +0000 2016

RT @BitcoinMagazine: #Bitcoins Are Not Tied Up on the #Lightning Network, Say Creators @jcp and @tdryja https://t.c…

Wed Apr 13 20:36:29 +0000 2016

RT @anca: A financial reason to use ad blockers. Ads could be better, but instead we get chum.

Wed Apr 13 20:40:32 +0000 2016

RT @bentnib: Authenticated Data Structures, as a Library, for Free!
By Me
For Thee

Thu Apr 14 02:35:00 +0000 2016

One of my favorite lessons to teach in both an intro drum workshop or an MBA classroom — mistakes are not failure:

Thu Apr 14 13:44:17 +0000 2016

I have many foodie & sustainable ag friends. I try to support local. Unfortunately no way to validate the claims!

Thu Apr 14 16:01:04 +0000 2016

I’m a big fan of design patterns & methods. I just backed the City Design Method Cards on @Kickstarter Join me?

Thu Apr 14 17:23:56 +0000 2016

RT @paule: TODO list for the digital reputation by @ChristopherA. Long way from current online identity management…

Fri Apr 15 07:24:26 +0000 2016

Replying to @paule

We are getting ready for our next #RebootingWebOfTrust event. See

Fri Apr 15 07:24:51 +0000 2016

RT @BitcoinMagazine: #Bitcoin Core 0.12.1 Released, Major Step Forward for Scalability and Lightning Network https:…

Sat Apr 16 00:40:39 +0000 2016

RT @Truthcoin: BTC community now full Schrodinger’s Troll – cant distinguish “troll or not troll”, all comments/media exist in both states…

Sat Apr 16 00:44:50 +0000 2016

There are huge reasons why to create more constructions using Schnorr — always was superior but delayed by patents.

Sat Apr 16 00:57:41 +0000 2016

The #RebootingWebOfTrust Design Workshop will be held on May 21st & 22nd in NYC after the UN ID2020 Summit. Info at

Sat Apr 16 14:52:53 +0000 2016

The #ID2020DesignWorkshop is bringing together tech leaders to progress identity tech & support the needs of the UN

Sat Apr 16 15:17:03 +0000 2016

I prefer to call what Ethereum & IBM’s OBC does as “chain code” or “open execution” rather than “smart contract”.

Sat Apr 16 17:22:00 +0000 2016

Replying to @brianchoffman

I didn’t call it chain code, IBM does. And I’m less concerned about collision with a crypto detail than something Forbes uses

Sat Apr 16 18:50:11 +0000 2016

@jgarzik you interested in coming to #ID2020DesignSummit?

Sun Apr 17 05:06:47 +0000 2016

RT @timoncc: Testing is just real-world confirmation that you are limiting yourself in the ways you planned to intend: can’t do anything w…

Sun Apr 17 16:41:44 +0000 2016

#ID2020DesignWorkshop: How do we give the 1.8 billion w/o legal identity self-sovereignty over their personal data?

Mon Apr 18 14:12:25 +0000 2016

There are those that claim that privacy is a 1st-world problem, not a requirement for 1.8B w/o legal identity. Wrong! #ID2020DesignWorkshop

Mon Apr 18 14:16:58 +0000 2016

Replying to @prestonjbyrne

I agree, but how? Many are illiterate—how do you do give them a password? You can’t revoke or rotate a fingerprint or iris!

Mon Apr 18 14:21:47 +0000 2016

Replying to @prestonjbyrne

How do you give a refugee from Burma an identity in a world of centrally controlled CAs? Not solved that in 1st-World!

Mon Apr 18 14:28:38 +0000 2016

Can the #WebOfTrust help #RefugeeCrisis? A use case in the advance readings for May 21st-22nd #ID2020DesignWorkshop

Mon Apr 18 16:58:01 +0000 2016

This is interesting—@manusporny you should look & maybe we should discuss signing+PoE at #ID2020DesignWorkshop

Mon Apr 18 18:47:46 +0000 2016

RT @hillary: Department of Homeland Security is on the record stating that #opensource will make the nation safer. o/…

Mon Apr 18 18:55:30 +0000 2016

.@juanbenet @manusporny I support adding Proof of Publication (first) and Proof of Existence (over time) to JSON-LD signing & submit to W3C

Mon Apr 18 18:58:39 +0000 2016

An overview of IPFS data @manusporny @juanbenet @drummondreed @peacekeeper

Mon Apr 18 19:03:20 +0000 2016

Most of the arguments in these myths are Bitcoin centric, however, in principle most are correct for blockchain tech

Mon Apr 18 19:09:22 +0000 2016

Replying to @juanbenet and @manusporny

probably should bring in @drummondreed and @peacekeeper. I’d love a solution across IPFS, W3C & XDI for interop.

Mon Apr 18 19:11:40 +0000 2016

ILPD is very interesting beyond just IPFS.…

Mon Apr 18 19:34:10 +0000 2016

RT @juanbenet: . @ChristopherA precisely! :) btw, IPFS is just “IPLD support + libp2p”. IPFS is not about “unix files”, it’s about merkle l…

Mon Apr 18 20:44:48 +0000 2016

Reply to my Facebook post sharing my of concern for privacy even in 3rd-world identity offered this too-true cartoon

Mon Apr 18 21:04:32 +0000 2016

“My keys have been compromised—I’d like revoke my brain print… Oops! What is my name?” </ sarcasm>

Mon Apr 18 22:46:52 +0000 2016

In 2005 I wrote about the “wiki editing dichotomy” as a paragraph inside a larger post. Searching on it today surprised how well it spread.

Tue Apr 19 04:36:47 +0000 2016

This is so true, and I’ve been on both sides of the problem. Takes me a day or two sometimes to switch modalities:

Tue Apr 19 14:46:06 +0000 2016

Replying to @trentmc0

I’m not sure I agree how low cost it can be. Heartbleed is an example of lack of human eyes on the project.

Tue Apr 19 14:49:28 +0000 2016

RT @schneierblog: Details about Juniper’s Firewall Backdoor: Last year, we learned about a backdoor in Juniper firewalls, one th… https:/…

Tue Apr 19 14:53:14 +0000 2016

A barrier to digital identity for the unenfranchised are the rules are all country specific: UN #ID2020Summit

Tue Apr 19 18:27:11 +0000 2016

“we need an identity scheme…home for open standards and legal frameworks” @EmLindley see #ID2020DesignWorkshop

Tue Apr 19 18:35:45 +0000 2016

@mikebutcher @Techfugees I’m part of #ID2020Summit at UN May 20th, and hosting #ID2020DesignWorkshop after. Chat?

Tue Apr 19 19:19:13 +0000 2016

Replying to @EmLindley

No, use cases are more than children, especially with follow on #ID2020DesignWorkshop. See for last years

Tue Apr 19 19:39:01 +0000 2016

Asked about my commitment to collaboration, privacy & security for my entire career, my answer was “I don’t want today to be ‘Peak Human’”

Tue Apr 19 21:00:21 +0000 2016

.@trentmc0 Heartbleed due huge amount of Internet was using OpenSSL with 1/4 FTE looking at it. Failure of Cathedral & Bazaar “many eyes”.

Tue Apr 19 22:28:44 +0000 2016

RT @TuurDemeester: Veteran Dev John Ratcliff on BTC scalability: “Sidechains + Lightning is killer combination” htt…

Wed Apr 20 00:01:56 +0000 2016

RT @peacekeeper: @drummondreed @ChristopherA @juanbenet @manusporny yes let’s look into it.. i’ve done some early experiments to store XDI…

Wed Apr 20 01:43:41 +0000 2016

I’ve been concerned about the state-of-the-art of smart contracts. Domain specific languages are one possible answer

Wed Apr 20 15:02:03 +0000 2016

Challenges of popular smart contract approaches that DAML is trying to address is when confidentiality is an issue:

Wed Apr 20 15:13:37 +0000 2016

RT @timpastoor: Issuing your own (crypto-)identity == Issuing your own privkey.

This is key (pun intended) in any >>>user-centric<<< ID sy…

Wed Apr 20 15:17:27 +0000 2016

I agree—wish there were some code examples though. @NickSzabo4 do you agree w/ some of my recent statements on this?

Wed Apr 20 16:02:55 +0000 2016

Replying to @tek_fin and @NinaKilbride

Especially given lack of ability for partnership firms to offer meaningful equity.

Wed Apr 20 17:13:26 +0000 2016

Replying to @trentmc0

Yes & more—it may depend on code needing support of the commons. It will need to adapt. I’m not saying smart contracts can’t help.

Wed Apr 20 17:16:17 +0000 2016

Another comic re: code mode and interrupting programmers. Not as funny, but a better explanation for non-coders:

Wed Apr 20 17:25:26 +0000 2016

#QotD (Quote of the Day) “Tell me and I forget. Teach me and I remember. Involve me and I learn.” —Benjamin Franklin

Wed Apr 20 20:30:30 +0000 2016

I want to support decentralized registries, but only if they are available across many architectures and protocols.

Wed Apr 20 21:09:34 +0000 2016

+1 to Kevin Werbach’s @kwerb tweetstorm rant on hidden economics, loss of faith in our ecosystem and transparency:

Wed Apr 20 21:32:40 +0000 2016

Part of why I believe in transparency and accountability for groups & the powerful, and privacy for the individual:

Wed Apr 20 21:37:31 +0000 2016

Replying to @trentmc0


Wed Apr 20 21:52:08 +0000 2016

“a successful miner receives a further additional payment for…permissioned-transactions.” Ouch! Breaks fungibility:

Wed Apr 20 23:55:58 +0000 2016

RT @kevinmarks: #indieweb @IdentityWoman: Christopher Allen @christophera is organising Web of Trust 2 in NY on May 21-22…

Thu Apr 21 03:19:28 +0000 2016

Can digital IDs be enabler for Asia-Pacific developing countries? Topic at #UNESCAP now & May 20th at #ID2020Summit

Thu Apr 21 16:18:35 +0000 2016

This will be also be topic at the UN #ID2020Summit on 5/20 & the following technical #ID2020DesignWorkshop @Data2x

Thu Apr 21 16:22:36 +0000 2016

RT @Will1Winter: Simple legal identity for all.. @Enactus_UNE wins National recognition again with @MinimbahProject - @UNESCAP #crvs http…

Thu Apr 21 16:24:25 +0000 2016

A lot of confirmation of interest in privacy issues at 1st mtg of #Hyperledger Identity WG last week. @kyletorpey

Thu Apr 21 16:39:18 +0000 2016

RT @Blockstream: The Federated Peg in Elements Alpha via @n1ckler :

Thu Apr 21 17:02:46 +0000 2016

UN ESCAP Dep. Exec. Sec. Murata says “providing every man, woman, girl and boy a legal identity…is critical”

Thu Apr 21 17:39:29 +0000 2016

How do we do this technically, and with sufficient privacy protection & security? Topic of #ID2020DesignSummit

Thu Apr 21 17:41:45 +0000 2016

Pleased that @Evernym “building an open-source sovereign identity platform” is a sponsor of #ID2020DesignWorkshop

Thu Apr 21 17:45:36 +0000 2016

Seeking sponsors to fund expenses for increased international, gender and racial diversity at #ID2020DesignWorkshop

Thu Apr 21 17:49:36 +0000 2016

When power controls what you see, it also controls what you can do. Great analysis of new #Facebook algorithm:

Thu Apr 21 18:28:16 +0000 2016

I used to be able to have more control of information filtering & curation—some great Google Reader tools, Delicious scripts, etc. Now gone!

Thu Apr 21 18:32:58 +0000 2016

I know that ChainAnchor is controversial, but some of the zero-knowledge approaches are interesting.

Fri Apr 22 14:40:55 +0000 2016

“it is taboo for women to step out of their doors unattended, Bitcoin allows them to fully participate in the world”

Fri Apr 22 15:00:28 +0000 2016

RT @brainpicker: What makes a person—the 7 layers of identity, in literature and life

Fri Apr 22 15:05:41 +0000 2016

RT @KantaraColin: At #UNCITRAL colloquium on IDM Jeff Nigriny @CertiPath reminds us that ‘no-one knows you’re a dog’ is 23 years old https:…

Fri Apr 22 15:07:26 +0000 2016

Replying to @KantaraColin

I’d love a link to the paper. I’m part of team doing next month’s #ID2020Summit at UN & hosting following #ID2020DesignWorshop

Fri Apr 22 15:10:07 +0000 2016

Interesting #UNICTRAL presentation on legal and liability issues of Digital Identity by @smedinghoff via @JamieXML

Fri Apr 22 15:14:44 +0000 2016

MIT’s ChainAnchor is a risk to fungibility in permissionless blockchains, however, enhances privacy in permissioned:

Fri Apr 22 15:36:41 +0000 2016

Replying to @petertoddbtc

reading the paper it is clear the intent is for permissioned blockchains—I’d prefer to see it than alternatives at Hyperledger

Fri Apr 22 15:38:56 +0000 2016

Anonymous verifiable identities & access control to permissioned blockchains & unlinkable—useful for #Hyperledger?

Fri Apr 22 15:45:28 +0000 2016

To protect identity we need more experiments in blinding & zero-knowledge approaches like range proofs, ChainAnchor, uProve & Identity Mixer

Fri Apr 22 15:57:42 +0000 2016

RT @petertoddbtc: @ChristopherA Yeah, they’ve obviously shifted focus quite a bit from their earlier work.

Fri Apr 22 16:36:16 +0000 2016

Some interesting thoughts about VCs vs. startup investing using DACs and smart contracts: @PullNews

Sun Apr 24 18:25:27 +0000 2016

Excellent starting template for your open source community’s contributor guidelines. Collected by @nayafia:

Mon Apr 25 16:02:35 +0000 2016

A presentation by @nayafia on why good contributor guildelines for open source are important:

Mon Apr 25 16:45:43 +0000 2016

My long read article “The Path to Self-Sovereign Identity” shares a vision and a draft of some principles. Comments?

Tue Apr 26 00:17:20 +0000 2016

A version of my Self-Sovereign Identity vision & principles are in Github—I welcome issues & pull requests there:

Tue Apr 26 00:30:02 +0000 2016

RT @cguida6: “self-sovereign identity” sounds like something @youbaseio could enable. Using HD bitcoin wallets to store pvt data https://t.…

Tue Apr 26 05:44:32 +0000 2016

RT @DanReus: @ChristopherA “The Path to Self-Sovereign Identity” makes clear to me that network efficiencies are dependent on personal iden…

Tue Apr 26 15:09:49 +0000 2016

RT @TuurDemeester: Fantastic overview of the history of digital identity and its future: self-sovereign identity.

Tue Apr 26 15:09:52 +0000 2016

I’m at #IIW where discussions about the Self-Sovereign Identity long read are already percolating.

Tue Apr 26 16:38:03 +0000 2016

At #IIW where @Kim_Cameron is sharing the origin of “7 Laws of Identity” over a decade ago.

Tue Apr 26 16:43:55 +0000 2016

At #IIW @Kim_Cameron shares story of military use of SSN for soldiers breaks at least 6 identity laws, resulted in huge theft of gov secrets

Tue Apr 26 17:11:56 +0000 2016

RT @JBFintech: @Kim_Cameron “building the Internet without a identity concept is like building a house and not adding plumbing until after…

Tue Apr 26 17:24:18 +0000 2016

RT @kevinmarks: #iiw @Kim_Cameron: hopefully these systems will be content-free - not using their concntration to prevent innovation

Tue Apr 26 17:24:28 +0000 2016

Phil @Windley offers: “Descartes didn’t say ‘I have a birth certificate, therefore, I am.’ “

Tue Apr 26 17:28:04 +0000 2016

Replying to @Steve_Lockstep and @JohnFontana

I’ve started a discussion about this today at

Tue Apr 26 17:53:10 +0000 2016

If you liked my long read on self-sovereign identity, you may like @leashless’s long read on it’s perils & promise:

Tue Apr 26 18:19:22 +0000 2016

RT @marcedavis: #iiw @drummondreed @ChristopherA I suggest look at how “self-sovereign” identities relate to rights/duties of natural and l…

Tue Apr 26 22:00:11 +0000 2016

“We need services to be separate from content—just operate the electrons, not determine the content of people’s identity.” @Kim_Cameron #IIW

Tue Apr 26 23:15:42 +0000 2016

“insist on seeing an original doc as proof of identity, but…no such requirement under law…just a process habit”

Wed Apr 27 00:25:06 +0000 2016

“Self Sovereign Identity deals with personal authority. Where does personal authority originate?” #ID2020

Wed Apr 27 00:37:33 +0000 2016

RT @paulmadsen: ‘Sovereign’ identity is sooooo Tuesday. Next big thing at #IIW is going to be ‘potentate’ identity. (ignore the ‘suzerain’…

Wed Apr 27 02:22:05 +0000 2016

RT @IdentityHutch: This #IIW session discussing refugee lives is making me feel really small about corporate reasons for researching #sover…

Wed Apr 27 02:22:32 +0000 2016

RT @Steve_Lockstep: How does separation of services and content jive with #blockchain? @Kim_Cameron #IIW

Wed Apr 27 14:29:01 +0000 2016

Good explanation of real reasons why I’ve been user or host of #coworking spaces for last decade:

Thu Apr 28 02:54:31 +0000 2016

Tara Hunt @missrogue & @ChrisMessina — thank you for inviting me to Citizen Space so many years ago! Read @profjasonpotts paper for why.

Thu Apr 28 03:01:18 +0000 2016

I appreciate the coworking spaces I’ve been a member of: Citizen Space ‘05?, co-founder Berkeley Coworking ‘07, Impact Hub(s), and Runway.

Thu Apr 28 03:16:40 +0000 2016

Is it possible to revoke a biometric based identity key? A discussion at #IIW. I’m skeptical, but great if we could.

Thu Apr 28 19:09:35 +0000 2016

Many problems in our discussion is biometric’s use for auth vs privacy risks of using them for identification.

Thu Apr 28 19:22:05 +0000 2016

Replying to @kumavis_

click on the photo and it will take you to source

Thu Apr 28 20:03:11 +0000 2016

“Standard efforts don’t run out of money or time, they just run out of patience.” — @Justin__Richer

Thu Apr 28 21:48:38 +0000 2016

Replying to @kumavis_

No, I search carefully on the web for imagery that can help make my point, that is also CC. In this case a duet is a team of two.

Thu Apr 28 21:51:44 +0000 2016

Replying to @kumavis_

Some are at

Thu Apr 28 21:53:27 +0000 2016

Replying to @kumavis_

also Cryptographic Voting Protocols: A Systems Perspective

Thu Apr 28 21:56:42 +0000 2016

RT @Steve_Lockstep: .@ChristopherA Is #biometrics a bit of a case of making a deal with the devil? Great convenience, for the price of irre…

Fri Apr 29 02:29:31 +0000 2016

RT @BryanJustinPon: Great posts on self-sovereign digital identity by @ChristopherA ( and @whitley (…

Fri Apr 29 13:32:51 +0000 2016

Excellent article explaining @NickSzabo4’s original vision for #SmartContracts that he described 20 years ago:

Sat Apr 30 02:01:18 +0000 2016

“#SmartContracts would improve 4 basic contract objectives: observability, verifiability, privity & enforceability.”

Sat Apr 30 02:04:14 +0000 2016

Centralization always tries to find some way to creep in: “these overreaching norms centralize influence”

Sat Apr 30 05:05:07 +0000 2016

@RaineyReitman any chance you could make it to first UN mtg on Digital Identity or workshop

Sat Apr 30 17:12:20 +0000 2016

RT @marcedavis: It seems to me that in “self-sovereign” identity I become my own Identity Provider (IdP) #IIW.

Sat Apr 30 17:18:21 +0000 2016

RT @marcedavis: As a “self-sovereign” IdP you can issue unique anonymous identifiers (even per request/session) and only you have the key t…

Sat Apr 30 17:18:25 +0000 2016

RT @xmlgrrl: In the #selfsovereign session at #IIW. Q: Is this about permissionless blockchain? A: It’s more about a system that’s resist…

Sat Apr 30 17:19:21 +0000 2016

RT @marcedavis: @drummondreed talking about “self-sovereign” identity as “identifiers and identity that cannot be taken away from you [ever…

Sat Apr 30 17:19:40 +0000 2016

RT @zooko: @marcedavis That’s one of the vertexes of Zooko’s Triangle (fixed version). @drummondreed @ChristopherA

Sat Apr 30 19:47:50 +0000 2016