RT @sfbitcoindevs: A video of the talk by @Blockstream’s @pwuille on Key Tree Signatures is now available https://youtu.be/gcQLWeFmpYg

Wed Sep 02 02:22:41 +0000 2015


Walk through on how #bitcoin’s forth-like transaction script language works. Can we have this generalized for certs? https://bitcoinmagazine.com/9447/thinking-transactions/

Wed Sep 02 16:50:33 +0000 2015


RT @joncallas: .@csoghoian We have done a good job of teaching people that crypto is hard, but cryptographers think that UX is easy.

Wed Sep 02 17:10:21 +0000 2015


Verifying myself: I am christophera on Keybase.io. pfnQ2OlxlYdoy_6EE5jmDRf8qp6TyNX7AE9I / https://keybase.io/christophera/sigs/pfnQ2OlxlYdoy_6EE5jmDRf8qp6TyNX7AE9I

Wed Sep 02 17:42:15 +0000 2015


I’m an infovore, guilting of too many open browser tabs, causing poor performance and even crashes. Solution—OneTab: https://www.one-tab.com/

Wed Sep 02 19:31:51 +0000 2015


RT @NickSzabo4: Best way to destroy your investment in Bitcoin: gather an Internet mob to go redesign Bitcoin.

Sat Sep 05 01:58:45 +0000 2015


RT @ageis: draft forward secrecy extensions for OpenPGP: https://tools.ietf.org/id/draft-brown-pgp-pfs-03.txt by @IanBrownOII @adam3us @BenLaurie (h/t @headhntr)

Sat Sep 05 01:59:46 +0000 2015


RT @NickSzabo4: Decentralization is what allows Bitcoin to substitute an army of computers for an army of accountants, investigators, and l…

Sat Sep 05 02:15:37 +0000 2015


RT @timpastoor: @ChristopherA Ps: Think you’re approaching it from the right angle, by combining ID, reputation, and WoT. Imo best option f…

Sat Sep 05 22:52:52 +0000 2015


Sensible idea—the problem is broad and it needs a lobby: “We call for the establishment of a Chamber of Commons” http://blog.p2pfoundation.net/call-for-a-chamber-of-commons/2015/09/01

Sun Sep 06 16:44:09 +0000 2015


RT @AlpacaSW: @Calem_Smith @adam3us @petertoddbtc @Visa @MasterCard if you compromise to match visa you will end up with visa.

Mon Sep 07 17:55:52 +0000 2015


RT @taoeffect: Bitcoin’s decentralization is a function of users, miners, nodes, devs. @ScalingBitcoin must devise method to optimize that …

Mon Sep 07 18:21:53 +0000 2015


.@taoeffect @okTurtles @ScalingBitcoin Not just this list of stakeholders—there are greater circles of those affected. Society as whole!

Mon Sep 07 18:22:36 +0000 2015


.@taoeffect @ScalingBitcoin @adam3us I might add that a single dominant code base is another form of centralization—remember Heartbleed.

Mon Sep 07 19:19:57 +0000 2015


.@taoeffect @ScalingBitcoin @adam3us Or a more heretical thought—a single token and a single protocol is another form of centralization.

Mon Sep 07 19:22:49 +0000 2015


.@taoeffect @ScalingBitcoin @adam3us I appreciate #bitcoin as I appreciate TLS & PGP, but there are real risks to “bitcoin über alles”.

Mon Sep 07 19:24:40 +0000 2015


.@taoeffect @ScalingBitcoin @adam3us Despite being a co-author of TLS, I’m not particularly happy with trend of “TLS and X.509 über alles”.

Mon Sep 07 19:28:17 +0000 2015


.@lightcoin @taoeffect @ScalingBitcoin @adam3us I’m not arguing that other code bases don’t exist, but that #bitcoin core is too dominant.

Mon Sep 07 19:32:59 +0000 2015


.@lightcoin @taoeffect @ScalingBitcoin @adam3us Bitcoin-core is too dominant as OpenSSL is too dominant.

Mon Sep 07 19:33:53 +0000 2015


Quoting @taoeffect “(#bitcoin implementations) have to reproduce Core’s behavior & bugs.” Exactly the problem!

Mon Sep 07 20:16:42 +0000 2015


1999 TLS 1.0 spec finalized⇉2013 ½ FTE support for OpenSSL⇉2014 Heartbleed 17% internet vulnerable. Thus, 2009 Bitcoin Core released ⇉ 2024?

Mon Sep 07 20:27:43 +0000 2015


RT @BlockstackOrg: Find out how the #blockchain can be used as a shared registry for creative works during @ChristopherA’s talk @ http://t.…

Mon Sep 07 20:53:05 +0000 2015


I appreciate the @etherscan comments feature for #ethereum #smartcontracts. I will have to search for more comments. https://twitter.com/kristovatlas/status/641023389281325056

Mon Sep 07 23:47:46 +0000 2015


As a warning I found myself quoting @JonCallas today “You cannot create trust with cryptography, no matter how much cryptography you use.”

Tue Sep 08 00:12:21 +0000 2015


Future of Audit & #Blockchain: @digifinancegirl “It is difficult to properly convey the size of this opportunity” https://www.linkedin.com/pulse/blockchain-technology-future-audit-shannon-steele

Tue Sep 08 00:36:59 +0000 2015


I don’t agree—IETF ideal is multiple heterogeneous implementations @TheBlueMatt “don’t make it impossible by adding several implementations”

Tue Sep 08 02:35:03 +0000 2015


RT @NickSzabo4: I comment on smart contracts + the advantages of permissionless blockchains and small block sizes:
http://www.ibtimes.co.uk/nick-szabo-if-banks-want-benefits-blockchains-they-must-go-permissionless-1518874

Tue Sep 08 18:48:43 +0000 2015


20 Thoughts on the #FutureOfWork, by @TheBif: https://medium.com/bif-speak/the-future-of-work-9fa8ed5b449e Time to create #SmartContracts to enable them!

Tue Sep 08 18:56:35 +0000 2015


I care! I keep trying new tools but they either don’t grok curation or don’t grok collective. #curation #reputation https://twitter.com/jerrymichalski/status/641318340644995073

Tue Sep 08 19:01:45 +0000 2015


I revisit words from 2004 “We need to leave the whole business of fear behind…enable rather than to prevent harm.” http://www.lifewithalacrity.com/2015/09/speaking-at-consensus-2015.html

Tue Sep 08 19:09:46 +0000 2015


Replying to @jerrymichalski

There is no shortage of tools, they each just miss something very important. So many tools it is hard to market quality.

Tue Sep 08 19:30:38 +0000 2015


Replying to @CommonAccord, @rickcolosimo and @PeterMahlerEsq

I have a parallel effort started at https://github.com/ParticipatoryOrgs/

Tue Sep 08 19:33:46 +0000 2015


RT @jerrymichalski: No shortage of tools, but the ones that make context are mostly crap. Very few worth using. Mostly shiny objects. https…

Tue Sep 08 20:08:38 +0000 2015


RT @adam3us: .@gavinandresen which are all discussion worthy ideas; but first should collect in one place and admit motives, argue, justify…

Tue Sep 08 20:14:31 +0000 2015


Fascinating to be a witness to this intersection of computational consensus and human consensus of @ScalingBitcoin: https://twitter.com/adam3us/status/641041519147917312

Tue Sep 08 20:27:13 +0000 2015


RT @anguschampion: Difference between a computer network and blockchain? End of the day, lower IT cost: Suresh Ramamurthi, Chairman/CTO of …

Tue Sep 08 20:38:58 +0000 2015


Dark side — “Governments would very much like such ledgers to exist (for…) assessment of all taxable activities.” http://www.zerohedge.com/news/2015-09-06/life-cashless-world-how-cash-became-policy-tool-%E2%80%93-interview-dr-harald-malmgren

Tue Sep 08 23:38:09 +0000 2015


RT @adam3us: .@drwasho cant design crypto protocol on twitter/reddit. if NIST did this with SHA3 would fail. workshop about return to scien…

Wed Sep 09 00:23:22 +0000 2015


I realized recently that my earliest digital currency thoughts were when I was thinking about Star Trek economics: https://twitter.com/timeline_now/status/641353821642362881

Wed Sep 09 03:35:33 +0000 2015


RT @juanbenet: You can read @kyledrake’s post via the HTTP gateway here: https://ipfs.io/ipfs/QmNhFJjGcMPqpuYfxL62VVB9528NXqDNMFXiqN5bgFYiZ1/its-time-for-the-permanent-web.html – though 100% hosted by IPFS. (2/2)

Wed Sep 09 14:17:00 +0000 2015


The #bitcoin community is defining for itself what “consent” and “consensus” are. “A Spectrum of Consent” helps me: http://www.lifewithalacrity.com/2015/09/a-spectrum-of-consent.html

Wed Sep 09 16:32:04 +0000 2015


RT @pete_rizzo_: #Consensus2015 mentor @ChristopherA workshops ideas with makeathon participants

Wed Sep 09 17:04:47 +0000 2015


RT @dawnmnewton: Phenomenal speakers @ #Consensus2015: @wences @jerrybrito @copernicc @ChristopherA @hernanabotbol @thescottrob Join: http:…

Wed Sep 09 17:05:11 +0000 2015


it is particularly poignant that the #bitcoin community is facing these questions. Consent & consensus is hard! http://www.lifewithalacrity.com/2015/09/a-spectrum-of-consent.html

Wed Sep 09 17:08:45 +0000 2015


“The public Bitcoin blockchain versus a private permissioned ledger is somewhat like VHS versus Betamax” @forbes http://onforb.es/1L1uryu

Wed Sep 09 19:08:57 +0000 2015


Speaking tomorrow at #Consensus “Bitcoin and its Antecedents: A Look at the History and Evolution of Digital Cash”

Wed Sep 09 19:37:48 +0000 2015


RT @chain: Chain has raised $30M from Visa, Nasdaq, Citi, Capital One, Fiserv and Orange https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0CCAQqQIwAGoVChMIntPYjN_qxwIVxDI-Ch2HAQDy&url=http%3A%2F%2Fwww.wsj.com%2Farticles%2Fvisa-nasdaq-others-invest-30-million-in-bitcoin-related-startup-1441827120&usg=AFQjCNFM7loK047QvFxxblp4s6hIJYtCfg

Wed Sep 09 20:09:58 +0000 2015


A depression-era “local script” good for $1 exchangeable for goods & service near Carmel-by-the-Sea, California:

Wed Sep 09 22:42:01 +0000 2015


Solid gold Monopoly game set at the Museum of American Finance:

Wed Sep 09 23:01:18 +0000 2015


Amazing shot of Twin Tower lights shooting the moon!

Thu Sep 10 00:16:42 +0000 2015


RT @ofnumbers: Hanging out with big brains: @emim @adamludwin @VitalikButerin @ChristopherA at #Consensus2015 #bitcoin http://t.co/ATYQ0sPT…

Thu Sep 10 17:09:35 +0000 2015


There appears to be a lot of interest here at #Consensus2015 for a design workshop on Nov 2nd on the topic of Rebooting the Web-of-Trust.

Thu Sep 10 18:44:25 +0000 2015


RT @schwentker: 1/2 @medialab students working on distributed computing project Enigma:
Data shard in 1000s of pieces of data across nodes

Thu Sep 10 18:48:26 +0000 2015


RT @schwentker: 2/2 where address of each piece of data is on blockchain & be reassembled after each piece of data is processed @chels_bar …

Thu Sep 10 18:48:28 +0000 2015


RT @BankInnovation: .@ChristopherA traces the beginnings of cryptocurrency to the science fiction of the 60s and 70s. #Consensus2015

Thu Sep 10 22:38:32 +0000 2015


RT @jeremybonney: We often hear about the future, but nice to hear about history of digital cash @nathanielpopper @ChristopherA @GarrickHil…

Thu Sep 10 22:39:23 +0000 2015


RT @Hitfin: Awesome panel on the history of #bitcoin with @ChristopherA and @nathanielpopper #Consensus2015 #blockchain http://t.co/ji3HyJ…

Thu Sep 10 22:41:57 +0000 2015


#BlockStackSummit @OneName reports that NameCoin has been mined >51% for weeks and no one noticed. No security!

Sat Sep 12 14:38:11 +0000 2015


RT @ofnumbers: .@muneeb: “Namecoin is not secure” due in part 2 one mining pool having 60%+ of hashrate so @onename moving 2 Bitcoin http:/…

Sat Sep 12 14:48:01 +0000 2015


I named my old company “Consensus Development” in 1988 inspired by this quote. I wrote then I wanted this by 2015:

Sat Sep 12 14:48:15 +0000 2015


RT @pete_rizzo_: “Privacy is not the main goal for bitcoin or Ethereum, it’s enforcing consensus.” - @vranjit27 at #ScalingBitcoin

Sat Sep 12 14:53:35 +0000 2015


Unfortunate that #BlockStackSummit and @ScalingBitcoin scheduled at same time. I want to be at both, had already committed to first.

Sat Sep 12 14:59:17 +0000 2015


My #BlockStackSummit lightning talk slides on supporting creative works with proof of existence and signatures are at http://slides.com/christophera/creativeworkinfo

Sat Sep 12 15:33:41 +0000 2015


RT @jony_levin: Creative attribution is hard. Hashes are not good enough, use bip32, parallel versions, derivatives etc. @ChristopherA #blo…

Sat Sep 12 15:34:02 +0000 2015


RT @ofnumbers: .@ChristopherA discussing: shared registry of creative works including http://DOI.org & copyright #Blockstack http:/…

Sat Sep 12 15:34:08 +0000 2015


.@ChrisPacia I have a long series of articles on Rating Systems starting at http://www.lifewithalacrity.com/2005/12/collective_choi.html that might help @openbazaar

Sat Sep 12 15:44:55 +0000 2015


Great to meet the thoughtful folk at @coindesk’s #Consensus2015 & @BlockstackOrg’s Summit! Here is my contact card:

Sat Sep 12 20:32:39 +0000 2015


RT @kristovatlas: #blockstack discussion on bip32 tech lead by @ChristopherA

Sat Sep 12 21:00:25 +0000 2015


RT @adam3us: .@petertoddbtc @pwuille @NickSzabo4 Best article yet on what Bitcoin is & why decentralisation is necessary http://t.co/3Sg5…

Sun Sep 13 12:51:43 +0000 2015


RT @BlockstackOrg: Lots of potential with #art / #content attribution on the #blockchain! https://twitter.com/ChristopherA/status/642722758879744001

Sun Sep 13 19:50:54 +0000 2015


RT @saveinventors: How to determine boundaries & context? @christophera [Allen] has an excellent perspective http://www.lifewithalacrity.com/2015/09/a-spectrum-of-consent.html https:…

Mon Sep 14 21:42:06 +0000 2015


A New DARPA Privacy program: “Naming it Brandeis suggests a recognition that tech will be only a part of the answer” http://bits.blogs.nytimes.com/2015/09/14/with-brandeis-project-darpa-seeks-to-advance-privacy-technology/

Tue Sep 15 01:15:21 +0000 2015


RT @drwasho: @ChristopherA @ChrisPacia @openbazaar Great suggestion!

Tue Sep 15 01:16:14 +0000 2015


RT @ryaneshea: Lots of workin group topics @ #Blockstack Summit.. “None about the block size!”-@JudeCNelson #ScalingBitcoin @onename http:/…

Tue Sep 15 04:51:04 +0000 2015


I am skeptical about yet another altcoin, but I do like the ideas around self-sustainable decentralized governance: https://www.dashpay.io/news/self-sustainable-decentralized-governance-by-blockchain/

Tue Sep 15 21:04:45 +0000 2015


RT @guylepage3: Wow! Absolute beast 😂 #id; #OP_RETURN transactions on #bitcoinblockchain @JudeCNelson @onename http://opreturn-976.appspot.com/ http:…

Wed Sep 16 22:17:07 +0000 2015


RT @kristovatlas: I wrote a new blog post containing a few thoughts about conflicts of interest and Bitcoin development. http://t.co/Tc6yux…

Thu Sep 17 06:02:14 +0000 2015


+1 “People who are not honest with how their vision for Bitcoin impacts their technical opinions are playing a dangerous game” @kristovatlas

Thu Sep 17 06:03:45 +0000 2015


+1 “Exploration of motivations behind technical arguments should be a routine act initiated by the makers of the arguments.” @kristovatlas

Thu Sep 17 06:06:04 +0000 2015


.@maraoz @BlockCypher When you do I’d love to use your code when teaching at @BlockchainU. #1 request to teach is node.js based PoE

Thu Sep 17 06:11:37 +0000 2015


RT @jgarzik: Summary of #ScalingBitcoin #bitcoin block size core devs etc. hallway chat http://lists.linuxfoundation.org/pipermail/bitcoin-dev/2015-September/011031.html

Thu Sep 17 06:13:34 +0000 2015


.@jgarzik As usual, the real work gets done in the hallways :-)

Thu Sep 17 06:15:40 +0000 2015


Had productive conversations with @taoeffect, @petertoddbtc & @joncallas planning Nov 2-3rd’s “Rebooting the Web-ofTrust” design shop event.

Tue Sep 22 00:43:27 +0000 2015


RT @lightcoin: My @BlockstackOrg Summit review - TL;DR great event for #blockchain devs: https://letstalkbitcoin.com/blog/post/blockstack-summit-2015-review-part-1 HT @kristovatlas @Christop…

Tue Sep 22 23:39:35 +0000 2015


Replying to @drwasho and @openbazaar

My advice elsewhere is to avoid 5-star rating systems if you can, as they typically have ui/ux problems.

Mon Sep 28 01:55:48 +0000 2015


Replying to @drwasho and @openbazaar

See my first article on rating systems: http://www.lifewithalacrity.com/2005/12/collective_choi.html

Mon Sep 28 01:56:11 +0000 2015


Replying to @drwasho and @openbazaar

Also, lessons from applying those ourselves a year later at http://www.lifewithalacrity.com/2007/01/collective_choi.html & http://www.skotos.net/articles/TTnT_/TTnT_198.phtml

Mon Sep 28 02:05:11 +0000 2015


Replying to @drwasho and @openbazaar

Top bad 5-star has become a norm. A bad design. I personally either recommend either only thumbs-up, or distinct 1-10.

Mon Sep 28 02:07:09 +0000 2015


Posted 5 initial advance readings on #crypto #identity for participants of #DesignShop on #RebootingWebOfTrust: https://github.com/WebOfTrustInfo/rebooting-the-web-of-trust/blob/master/topics-and-advance-readings/

Wed Sep 30 20:23:08 +0000 2015

Updated: