create account

What is Blockchain Architecture? by biophil

View this thread on: hive.blogpeakd.comecency.com
· @biophil ·
$5.27
What is Blockchain Architecture?
One of the central research themes in my study of [theory for Distributed Ledger Technology](https://steemit.com/theory/@biophil/what-is-theory) (DLT, or blockchains and cryptocurrencies and the like) is that of **Ledger Architecture.** But what do I mean by Ledger Architecture?

<center>![](https://cdn.steemitimages.com/DQmekPUJh1m5pxYbBEbv3ugajFXJSMcdN5wqMRJuvWNVRQJ/image.png)</center>

## What is Architecture?

In my parlance, I take "architecture" to mean the high-level details surrounding the following things:

1. Who is allowed to add things to the ledger?
2. If two people simultaneously try to add conflicting things to the ledger, how do you decide which one belongs?
3. How do we know that a bad guy can't re-write the ledger?

In Bitcoin and other similar proof-of-work blockchain-based cryptocurrencies, the answers are simple and relatively well-understood. I call this the "architecture" of bitcoin:

1. If you solve a proof-of-work, you're allowed to add any valid transactions you want to the ledger all bundled together in a block.
2. In deciding between two blockchains, the longer one is considered valid. That is, if two miners try to add blocks simultaneously, then the chain temporarily "forks" -- this fork is not resolved until a future miner builds on one of the forks. As soon as this happens, the longer fork wins.
3. If a bad guy has less than 50% of the hash power of the mining network, then the probability that the attacker can reverse a transaction decays exponentially with time. That is, the longer we wait, the safer the transaction is.


<center>![](https://cdn.steemitimages.com/DQmbHswcvhAfbWF464sjRz5aKwTQ8NtiqCrB8KkFN9aQ2Wb/image.png)</center>

## What other architectures are there?

Not everybody believes that Bitcoin has the best architecture, and many people are actively searching for something better. I started to piece together my thoughts on this topic recently when [I started looking into the IOTA cryptocurrency.](https://steemit.com/iota/@biophil/questions-for-the-iota-foundation) Without going into a great deal of detail, IOTA is a cryptocurrency that works somewhat differently than Bitcoin (or Steem). In particular, IOTA has no blockchain. The IOTA Foundation claims that this allows IOTA to do things that Bitcoin can't. Because I'm a curious kind of a person, as soon as I started reading this I set out to try to understand whether this is actually true.

<center>![](https://cdn.steemitimages.com/0x0/https://iotasupport.com/images/iotatransformed.jpg)</center>

How might we answer the above questions for IOTA?

1. Anybody, anywhere is allowed to add a transaction to the ledger -- the only rules are that you have to do a small proof-of-work, and your transaction has to reference two other valid transactions that are already in the ledger.
2. Just like in Bitcoin, we wait to see which of the conflicting things "wins" in the long run. Unlike Bitcoin, there is no sharp rule for deciding which of the conflicting transactions wins; we just do it probabilistically based on some formulas.
3. The IOTA Foundation claims that if a bad guy has less than 33% of the hash power of the network, then the probability that the bad guy can reverse a transaction decays with time. I am not aware of any formal proof of this.

So it's all quite a bit different in IOTA from how it works in Bitcoin, but if we can model both using the same mathematical tools (that is, by formally answering each of the above 3 questions), then we can actually compare the two systems in a formal way. We might then notice things like this:

In IOTA, security is determined by hash power, and hash power is provided by users. **It seems reasonable to conclude that total security is proportional to transaction volume.** This is *fundamentally* different from Bitcoin; in which the hash power is somewhat more independent of the transaction volume on the network. **In IOTA, if the transaction volume suddenly drops, it appears that the network instantly becomes more vulnerable to attacks. In Bitcoin, a decrease in transaction volume would likely have a much smaller effect.**

## So what questions will I ask with this framework?

1. Does a cryptocurrency need a blockchain, or is IOTA's "Tangle" just fine?
2. What are the consequences of separating users from block producers? Does Bitcoin 
3. What are the fundamental limitations to secure transaction rates?
4. Are the IOTA Foundation's claims that "the network gets faster the more it is used" correct?
5. Why do Graphene-based DPOS chains apparently perform so much better than PoW mining chains? Has something important been lost, or are they just better?

## Stay tuned for more of my quick thoughts on DLT Theory!

If you want to partner with me to define the questions, find the answers, or fund those of us who do, please reply here and join the conversation. I'm beginning as a tenure-track professor of Computer Science at the University of Colorado, Colorado Springs in August, so I'm always on the lookout for motivated graduate students **(get paid to get a PhD in computer science in beautiful Colorado Springs!)** and funding partners.
👍  , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,
properties (23)
authorbiophil
permlinkwhat-is-blockchain-architecture
categoryresearch
json_metadata{"tags":["research","theory","cryptocurrency","blockchain","steemstem"],"image":["https://cdn.steemitimages.com/DQmekPUJh1m5pxYbBEbv3ugajFXJSMcdN5wqMRJuvWNVRQJ/image.png","https://cdn.steemitimages.com/DQmbHswcvhAfbWF464sjRz5aKwTQ8NtiqCrB8KkFN9aQ2Wb/image.png","https://cdn.steemitimages.com/0x0/https://iotasupport.com/images/iotatransformed.jpg"],"links":["https://steemit.com/theory/@biophil/what-is-theory","https://steemit.com/iota/@biophil/questions-for-the-iota-foundation"],"app":"steemit/0.1","format":"markdown"}
created2018-05-25 07:54:51
last_update2018-05-25 07:54:51
depth0
children53
last_payout2018-06-01 07:54:51
cashout_time1969-12-31 23:59:59
total_payout_value4.313 HBD
curator_payout_value0.958 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length5,152
author_reputation45,223,914,794,461
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id57,595,188
net_rshares1,390,647,234,686
author_curate_reward""
vote details (63)
@adeyemoy2 ·
Intresting,i can't wait to make happen
properties (22)
authoradeyemoy2
permlinkre-biophil-what-is-blockchain-architecture-20180529t172223772z
categoryresearch
json_metadata{"tags":["research"],"app":"steemit/0.1"}
created2018-05-29 17:22:21
last_update2018-05-29 17:22:21
depth1
children0
last_payout2018-06-05 17:22:21
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length38
author_reputation-35,055,821,825
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id58,309,377
net_rshares0
@azzuhra ·
Artikel very exelen @biophil
properties (22)
authorazzuhra
permlinkre-biophil-2018528t5466512z
categoryresearch
json_metadata{"tags":["research","theory","cryptocurrency","blockchain","steemstem"],"app":"esteem/1.6.0","format":"markdown+html","community":"esteem"}
created2018-05-27 22:46:09
last_update2018-05-27 22:46:09
depth1
children0
last_payout2018-06-03 22:46:09
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length28
author_reputation31,723,753,140
root_title"What is Blockchain Architecture?"
beneficiaries
0.
accountesteemapp
weight1,000
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id58,016,705
net_rshares0
@beatking13 ·
$0.11
Great post!!   Very informative! I'm going to show this to my family member who is having a hard time grasping the concept. I learned a lot, I know he will too!  (^_^)
👍  
properties (23)
authorbeatking13
permlinkre-biophil-what-is-blockchain-architecture-20180614t172055716z
categoryresearch
json_metadata{"tags":["research"],"app":"steemit/0.1"}
created2018-06-14 17:20:57
last_update2018-06-14 17:20:57
depth1
children0
last_payout2018-06-21 17:20:57
cashout_time1969-12-31 23:59:59
total_payout_value0.087 HBD
curator_payout_value0.027 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length167
author_reputation10,655,000,460,522
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id60,750,312
net_rshares45,474,113,683
author_curate_reward""
vote details (1)
@caspersteem ·
@biophil really a very informative article and also enlightenment for us beginners in this steemit, hopefully the more glorious and more knowledge we get in each post posting
properties (22)
authorcaspersteem
permlinkre-biophil-2018527t23534284z
categoryresearch
json_metadata{"tags":["research","theory","cryptocurrency","blockchain","steemstem"],"app":"esteem/1.6.0","format":"markdown+html","community":"esteem"}
created2018-05-27 16:05:42
last_update2018-05-27 16:05:42
depth1
children0
last_payout2018-06-03 16:05:42
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length174
author_reputation140,829,822,350
root_title"What is Blockchain Architecture?"
beneficiaries
0.
accountesteemapp
weight1,000
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id57,967,337
net_rshares0
@coin.info ·
**Coins mentioned in post:**

Coin | | Price (USD) | 📉 24h | 📉 7d
- | - | - | - | -
**BTC** | Bitcoin | 7555.900$ | _1.31%_ | _-8.66%_
**DLT** | Agrello | 0.188$ | _-1.53%_ | _-26.5%_
**MIOTA** | IOTA | 1.525$ | _0.13%_ | _-13.46%_
**STEEM** | Steem | 2.680$ | _-3.04%_ | _-12.91%_
properties (22)
authorcoin.info
permlinkre-biophil-what-is-blockchain-architecture-20180526t103240320z
categoryresearch
json_metadata{"app":"coininfo/1.0.0","format":"markdown"}
created2018-05-26 10:32:39
last_update2018-05-26 10:32:39
depth1
children0
last_payout2018-06-02 10:32:39
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length281
author_reputation133,144,230,969
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id57,780,854
net_rshares0
@cosmophobia ·
I just have one thing to say in regard to this excellent material work.
" "👍""👍" Great post I very much enjoyed it "👍""👍"
properties (22)
authorcosmophobia
permlinkre-biophil-what-is-blockchain-architecture-20180616t011800357z
categoryresearch
json_metadata{"tags":["research"],"app":"steemit/0.1"}
created2018-06-16 01:18:03
last_update2018-06-16 01:18:03
depth1
children0
last_payout2018-06-23 01:18:03
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length121
author_reputation53,337,322,068,101
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd0
post_id60,923,106
net_rshares0
@devrajsinghrawat ·
nice writeup @biophil yes there is alot of innovation going around and DTL and Block chain has just started with the baby steps and there is a way forward.. 

apart from bitcoin, iota there is something called hashgraph technology exploring the way to make thing more interesting !
properties (22)
authordevrajsinghrawat
permlinkre-biophil-what-is-blockchain-architecture-20180529t170603058z
categoryresearch
json_metadata{"tags":["research"],"users":["biophil"],"app":"steemit/0.1"}
created2018-05-29 17:06:09
last_update2018-05-29 17:06:09
depth1
children0
last_payout2018-06-05 17:06:09
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length281
author_reputation2,616,899,923,169
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd0
post_id58,307,097
net_rshares0
@enajo ·
$0.07
Simple put Blockchain Architecture has to do with planning for the possible action and outcomes that can happen on the blockchain and it can be handled.
👍  
properties (23)
authorenajo
permlinkre-biophil-what-is-blockchain-architecture-20180525t075927878z
categoryresearch
json_metadata{"tags":["research"],"app":"steemit/0.1"}
created2018-05-25 07:59:33
last_update2018-05-25 07:59:33
depth1
children0
last_payout2018-06-01 07:59:33
cashout_time1969-12-31 23:59:59
total_payout_value0.055 HBD
curator_payout_value0.018 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length152
author_reputation1,039,883,065,869
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id57,595,686
net_rshares20,398,922,161
author_curate_reward""
vote details (1)
@husana ·
a very valuable post. it is very nice friends
properties (22)
authorhusana
permlinkre-biophil-2018526t14248670z
categoryresearch
json_metadata{"tags":["research","theory","cryptocurrency","blockchain","steemstem"],"app":"esteem/1.5.1","format":"markdown+html","community":"esteem"}
created2018-05-26 07:24:15
last_update2018-05-26 07:24:15
depth1
children0
last_payout2018-06-02 07:24:15
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length45
author_reputation338,705,120,185
root_title"What is Blockchain Architecture?"
beneficiaries
0.
accountesteemapp
weight1,000
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id57,762,171
net_rshares0
@iamstan ·
$0.04
@biophil we are finding that @gentlebot is upvoting many spam and copy/paste comments. Could you please come by our discord to chat with us?  
https://discord.gg/fwyW7V
👍  ,
properties (23)
authoriamstan
permlinkre-biophil-what-is-blockchain-architecture-20180601t195806196z
categoryresearch
json_metadata{"tags":["research"],"users":["biophil","gentlebot"],"links":["https://discord.gg/fwyW7V"],"app":"steemit/0.1"}
created2018-06-01 19:58:06
last_update2018-06-01 19:58:06
depth1
children1
last_payout2018-06-08 19:58:06
cashout_time1969-12-31 23:59:59
total_payout_value0.037 HBD
curator_payout_value0.007 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length168
author_reputation16,376,108,300,630
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id58,808,391
net_rshares12,042,428,486
author_curate_reward""
vote details (2)
@biophil ·
Maybe I let your invite expire, but it's not letting me through.

I've seen a lot of that spam and stuff that gentlebot is voting on. There are some more foundational issues that I need to address with his algorithm, but for now I've put in some basic protections that should hopefully shut some of it down.
👍  
properties (23)
authorbiophil
permlinkre-iamstan-re-biophil-what-is-blockchain-architecture-20180605t224348896z
categoryresearch
json_metadata{"tags":["research"],"app":"steemit/0.1"}
created2018-06-05 22:43:48
last_update2018-06-05 22:43:48
depth2
children0
last_payout2018-06-12 22:43:48
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length307
author_reputation45,223,914,794,461
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id59,440,600
net_rshares1,740,576,544
author_curate_reward""
vote details (1)
@ikemsamuel ·
@biophil this architecture photography is so awesome, for me since you're this good in your own research by your self, then i know you gonna be good and confidence to invest either... I love that! You're as a Team™ and you're Original® to your search and research© thanks!...
properties (22)
authorikemsamuel
permlinkre-biophil-what-is-blockchain-architecture-20180602t060930593z
categoryresearch
json_metadata{"tags":["research"],"users":["biophil"],"app":"steemit/0.1"}
created2018-06-02 06:09:42
last_update2018-06-02 06:09:42
depth1
children0
last_payout2018-06-09 06:09:42
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length275
author_reputation457,813,101,938
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id58,865,252
net_rshares0
@ikemsamuel ·
@biophil if i where you am gonna be rich by now, well i know that sniper cannot shut your money, here is your dow£$:...![IMG-20171114-WA0012.jpg](https://cdn.steemitimages.com/DQmRQDMgwJHwEkweCYD2h4ecsrRBGGSUXTCbcnEmxMt3Q7U/IMG-20171114-WA0012.jpg)
properties (22)
authorikemsamuel
permlinkre-biophil-what-is-blockchain-architecture-20180602t061242174z
categoryresearch
json_metadata{"tags":["research"],"users":["biophil"],"image":["https://cdn.steemitimages.com/DQmRQDMgwJHwEkweCYD2h4ecsrRBGGSUXTCbcnEmxMt3Q7U/IMG-20171114-WA0012.jpg"],"app":"steemit/0.1"}
created2018-06-02 06:12:51
last_update2018-06-02 06:12:51
depth1
children0
last_payout2018-06-09 06:12:51
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length248
author_reputation457,813,101,938
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id58,865,551
net_rshares0
@ipoelkip ·
ping....
properties (22)
authoripoelkip
permlinkre-biophil-what-is-blockchain-architecture-20180529t172111509z
categoryresearch
json_metadata{"tags":["research"],"app":"steemit/0.1"}
created2018-05-29 17:21:15
last_update2018-05-29 17:21:15
depth1
children0
last_payout2018-06-05 17:21:15
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length8
author_reputation41,655,562,990
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id58,309,216
net_rshares0
@jidgabol ·
computer science in beautiful
👍  , , , , , , , , , , , , , , , , , , , , ,
properties (23)
authorjidgabol
permlinkre-biophil-what-is-blockchain-architecture-20180903t122128996z
categoryresearch
json_metadata{"tags":["research"],"app":"steemit/0.1"}
created2018-09-04 06:06:36
last_update2018-09-04 06:06:36
depth1
children0
last_payout2018-09-11 06:06:36
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length29
author_reputation24,654,739,566
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id70,257,672
net_rshares2,674,327,847
author_curate_reward""
vote details (22)
@kaleem345 ·
I like your program for comment upvote is owsam idea
properties (22)
authorkaleem345
permlinkre-biophil-what-is-blockchain-architecture-20181017t050339886z
categoryresearch
json_metadata{"tags":["research"],"app":"steemit/0.1"}
created2018-10-17 05:04:00
last_update2018-10-17 05:04:00
depth1
children0
last_payout2018-10-24 05:04:00
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length52
author_reputation9,849,577,612,331
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id73,456,796
net_rshares0
@lelek ·
Very good article you, good work in the article hopefully there is the oldest progress in steemit.
properties (22)
authorlelek
permlinkre-biophil-2018526t222816968z
categoryresearch
json_metadata{"tags":["research","theory","cryptocurrency","blockchain","steemstem"],"app":"esteem/1.5.1","format":"markdown+html","community":"esteem"}
created2018-05-26 15:28:18
last_update2018-05-26 15:28:18
depth1
children0
last_payout2018-06-02 15:28:18
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length98
author_reputation1,057,108,764,541
root_title"What is Blockchain Architecture?"
beneficiaries
0.
accountesteemapp
weight1,000
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id57,815,699
net_rshares0
@leomesi ·
Good luck @biophil
properties (22)
authorleomesi
permlinkre-biophil-2018528t143659940z
categoryresearch
json_metadata{"tags":["research","theory","cryptocurrency","blockchain","steemstem"],"app":"esteem/1.6.0","format":"markdown+html","community":"esteem"}
created2018-05-28 07:37:03
last_update2018-05-28 07:37:03
depth1
children0
last_payout2018-06-04 07:37:03
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length18
author_reputation55,670,016,967
root_title"What is Blockchain Architecture?"
beneficiaries
0.
accountesteemapp
weight1,000
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id58,069,128
net_rshares0
@mafi001 ·
i am mechanical engr,i like your design.actually it is so difficult ..
properties (22)
authormafi001
permlinkre-biophil-what-is-blockchain-architecture-20180525t083328921z
categoryresearch
json_metadata{"tags":["research"],"app":"steemit/0.1"}
created2018-05-25 08:33:33
last_update2018-05-25 08:33:33
depth1
children0
last_payout2018-06-01 08:33:33
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length70
author_reputation125,101,813,059
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id57,599,611
net_rshares0
@mahmoodkhan ·
upvote for upvote @biophil
👎  
properties (23)
authormahmoodkhan
permlinkre-biophil-what-is-blockchain-architecture-20180709t112526344z
categoryresearch
json_metadata{"tags":["research"],"users":["biophil"],"app":"steemit/0.1"}
created2018-07-09 11:25:27
last_update2018-07-09 11:25:27
depth1
children0
last_payout2018-07-16 11:25:27
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length26
author_reputation9,683,031,771
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id64,016,789
net_rshares-22,472,493,238
author_curate_reward""
vote details (1)
@mghufroncholid31 ·
An argumentative writing has been done and brought into our midst and it is a supplement to our knowledge. thank you for publishing this list which is an additional resource of science for us
properties (22)
authormghufroncholid31
permlinkre-biophil-what-is-blockchain-architecture-20180612t093603136z
categoryresearch
json_metadata{"tags":["research"],"app":"steemit/0.1"}
created2018-06-12 09:36:12
last_update2018-06-12 09:36:12
depth1
children0
last_payout2018-06-19 09:36:12
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length191
author_reputation169,159,211,062
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id60,421,857
net_rshares0
@monira71 ·
Just a side comment... I never understood why people have these tendencies of creating new acronyms for everything. As an example, "DLT, the International Conference on Developments in Language Theory is an academic conference in the field of computer science held annually under the auspices of the European Association for Theoretical Computer Science"
👎  
properties (23)
authormonira71
permlinkre-biophil-what-is-blockchain-architecture-20180604t093655032z
categoryresearch
json_metadata{"tags":["research"],"app":"steemit/0.1"}
created2018-06-04 09:37:00
last_update2018-06-04 09:37:00
depth1
children1
last_payout2018-06-11 09:37:00
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length354
author_reputation21,544,888,006
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id59,177,517
net_rshares-20,147,083,616
author_curate_reward""
vote details (1)
@biophil ·
bl
properties (22)
authorbiophil
permlinkre-monira71-re-biophil-what-is-blockchain-architecture-20180604t140459944z
categoryresearch
json_metadata{"tags":["research"],"app":"steemit/0.1"}
created2018-06-04 14:05:03
last_update2018-06-04 14:05:03
depth2
children0
last_payout2018-06-11 14:05:03
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length2
author_reputation45,223,914,794,461
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id59,210,124
net_rshares0
@mountrock ·
$0.09
I wish I had that math skill to join your PHD program lol. Thanks for explanation about IOTA, I hope you will also talk about Cloud Coin. 
👍  
properties (23)
authormountrock
permlinkre-biophil-what-is-blockchain-architecture-20180525t144024615z
categoryresearch
json_metadata{"tags":["research"],"community":"busy","app":"busy/2.4.0"}
created2018-05-25 14:40:39
last_update2018-05-25 14:40:39
depth1
children4
last_payout2018-06-01 14:40:39
cashout_time1969-12-31 23:59:59
total_payout_value0.084 HBD
curator_payout_value0.002 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length138
author_reputation10,118,100,819,203
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id57,648,260
net_rshares23,420,984,703
author_curate_reward""
vote details (1)
@biophil ·
I haven't heard of cloud coin. Is it another of these blockchainless ones?
👍  
properties (23)
authorbiophil
permlinkre-mountrock-re-biophil-what-is-blockchain-architecture-20180525t144528337z
categoryresearch
json_metadata{"tags":["research"],"app":"steemit/0.1"}
created2018-05-25 14:45:33
last_update2018-05-25 14:45:33
depth2
children3
last_payout2018-06-01 14:45:33
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length74
author_reputation45,223,914,794,461
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id57,648,977
net_rshares2,011,437,789
author_curate_reward""
vote details (1)
@mountrock ·
Yea, kind of, here is founder interviewed by Connie:
https://www.youtube.com/watch?v=DE7eXUiSg7U
properties (22)
authormountrock
permlinkre-biophil-re-mountrock-re-biophil-what-is-blockchain-architecture-20180525t145352132z
categoryresearch
json_metadata{"tags":["research"],"community":"busy","app":"busy/2.4.0"}
created2018-05-25 14:54:06
last_update2018-05-25 14:54:06
depth3
children2
last_payout2018-06-01 14:54:06
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length96
author_reputation10,118,100,819,203
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id57,650,297
net_rshares0
@mountrock ·
$0.09
Hi. Now we have new platform: Steem Monsters. https://steemmonsters.com  I would say it is interesting enough, many people are addicted. Kindly give some review please. Thx
👍  
properties (23)
authormountrock
permlinkre-biophil-what-is-blockchain-architecture-20180603t204449647z
categoryresearch
json_metadata{"tags":["research"],"community":"busy","app":"busy/2.4.0"}
created2018-06-03 20:45:03
last_update2018-06-03 20:45:03
depth1
children2
last_payout2018-06-10 20:45:03
cashout_time1969-12-31 23:59:59
total_payout_value0.065 HBD
curator_payout_value0.020 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length172
author_reputation10,118,100,819,203
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id59,099,839
net_rshares23,924,661,794
author_curate_reward""
vote details (1)
@biophil ·
Yeah, I came across that the other day. I certainly like the look of it! When I looked at it a couple weeks ago it didn't seem like there was much to review yet. Have they started doing anything other than just selling cards?
👍  
properties (23)
authorbiophil
permlinkre-mountrock-re-biophil-what-is-blockchain-architecture-20180603t223207170z
categoryresearch
json_metadata{"tags":["research"],"app":"steemit/0.1"}
created2018-06-03 22:32:09
last_update2018-06-03 22:32:09
depth2
children1
last_payout2018-06-10 22:32:09
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length225
author_reputation45,223,914,794,461
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id59,111,779
net_rshares2,050,063,483
author_curate_reward""
vote details (1)
@mountrock ·
No they haven't :)
properties (22)
authormountrock
permlinkre-biophil-re-mountrock-re-biophil-what-is-blockchain-architecture-20180604t145515404z
categoryresearch
json_metadata{"tags":["research"],"community":"busy","app":"busy/2.4.0"}
created2018-06-04 14:55:30
last_update2018-06-04 14:55:30
depth3
children0
last_payout2018-06-11 14:55:30
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length18
author_reputation10,118,100,819,203
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id59,217,269
net_rshares0
@moyse ·
Nice post
properties (22)
authormoyse
permlinkre-biophil-what-is-blockchain-architecture-20180528t153810647z
categoryresearch
json_metadata{"tags":["research"],"app":"steemit/0.1"}
created2018-05-28 15:38:12
last_update2018-05-28 15:38:12
depth1
children0
last_payout2018-06-04 15:38:12
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length9
author_reputation5,860,270,290,556
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id58,129,911
net_rshares0
@nathanmars ·
Out of curiosity, Are you invested in IOTA ? Because few of your blog kind of promoting IOTA..

I’m not judging you or IOTA, but I wanted to ask you directly.

Thanks and Happy Steeming:)
properties (22)
authornathanmars
permlinkre-biophil-what-is-blockchain-architecture-20180525t080450056z
categoryresearch
json_metadata{"tags":["research"],"app":"steemit/0.1"}
created2018-05-25 08:04:51
last_update2018-05-25 08:04:51
depth1
children2
last_payout2018-06-01 08:04:51
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length187
author_reputation336,354,946,115,368
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id57,596,259
net_rshares0
@biophil ·
No, I'm not invested in IOTA -- and my blogs are actually fairly critical of IOTA, certainly not promoting it. I wouldn't mind having some, but it's a fairly complex and bizarre system that I haven't taken the effort yet to figure out how to invest securely.
properties (22)
authorbiophil
permlinkre-nathanmars-re-biophil-what-is-blockchain-architecture-20180525t080747127z
categoryresearch
json_metadata{"tags":["research"],"app":"steemit/0.1"}
created2018-05-25 08:07:48
last_update2018-05-25 08:07:48
depth2
children1
last_payout2018-06-01 08:07:48
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length258
author_reputation45,223,914,794,461
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id57,596,581
net_rshares0
@nathanmars ·
$0.18
Thanks for responding! 

You’re capable of figuring out how to share you research on Steemit by yourself. I’m sure you’ll figure out how to invest too. Everything can be learned and we can figure everything out if we really wanted to. lol

Look forward to your next blog and happy Steeming:)
👍  
properties (23)
authornathanmars
permlinkre-biophil-re-nathanmars-re-biophil-what-is-blockchain-architecture-20180525t082547017z
categoryresearch
json_metadata{"tags":["research"],"app":"steemit/0.1"}
created2018-05-25 08:25:48
last_update2018-05-25 08:25:48
depth3
children0
last_payout2018-06-01 08:25:48
cashout_time1969-12-31 23:59:59
total_payout_value0.140 HBD
curator_payout_value0.044 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length291
author_reputation336,354,946,115,368
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id57,598,647
net_rshares49,360,354,859
author_curate_reward""
vote details (1)
@nathen007 · (edited)
$0.12
I've just had a couple of really welcome @ gentlebot comments in 2 days. I had no idea who @ gentlebot was so I read up and here I am. 
I simply wanted to say thank you :-)
👍  
properties (23)
authornathen007
permlinkre-biophil-what-is-blockchain-architecture-20180610t045059490z
categoryresearch
json_metadata{"tags":["research"],"app":"steemit/0.1"}
created2018-06-10 04:50:57
last_update2018-06-10 04:51:54
depth1
children1
last_payout2018-06-17 04:50:57
cashout_time1969-12-31 23:59:59
total_payout_value0.090 HBD
curator_payout_value0.030 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length172
author_reputation258,644,665,601,059
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id60,091,486
net_rshares45,582,776,681
author_curate_reward""
vote details (1)
@biophil ·
You're very welcome!
👍  
properties (23)
authorbiophil
permlinkre-nathen007-re-biophil-what-is-blockchain-architecture-20180611t133122736z
categoryresearch
json_metadata{"tags":["research"],"app":"steemit/0.1"}
created2018-06-11 13:31:27
last_update2018-06-11 13:31:27
depth2
children0
last_payout2018-06-18 13:31:27
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length20
author_reputation45,223,914,794,461
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id60,296,354
net_rshares4,352,792,038
author_curate_reward""
vote details (1)
@netizens ·
Nice post, thank you for the information.
👍  
properties (23)
authornetizens
permlinkre-biophil-what-is-blockchain-architecture-20180602t172726033z
categoryresearch
json_metadata{"tags":["research"],"app":"steemit/0.1"}
created2018-06-02 17:27:27
last_update2018-06-02 17:27:27
depth1
children0
last_payout2018-06-09 17:27:27
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length41
author_reputation91,474,556,537
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id58,936,360
net_rshares235,967,600
author_curate_reward""
vote details (1)
@quochuy ·
Looks like there are only @pocketjs @pocket-pi and maybe @pocket-node left on the network.
👍  
properties (23)
authorquochuy
permlinkre-biophil-what-is-blockchain-architecture-20190327t092744310z
categoryresearch
json_metadata{"tags":["research"],"users":["pocketjs","pocket-pi","pocket-node"],"app":"steemit/0.1"}
created2019-03-27 09:28:09
last_update2019-03-27 09:28:09
depth1
children2
last_payout2019-04-03 09:28:09
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length90
author_reputation758,372,221,814,367
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id82,031,865
net_rshares20,036,019,287
author_curate_reward""
vote details (1)
@biophil ·
Is @pocketjs yours?
properties (22)
authorbiophil
permlinkre-quochuy-re-biophil-what-is-blockchain-architecture-20190330t182529302z
categoryresearch
json_metadata{"tags":["research"],"users":["pocketjs"],"app":"steemit/0.1"}
created2019-03-30 18:25:30
last_update2019-03-30 18:25:30
depth2
children1
last_payout2019-04-06 18:25:30
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length19
author_reputation45,223,914,794,461
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id82,213,414
net_rshares0
@quochuy ·
Yes it is. I’ve just resumed development for it and completed the replay from genesis /zero.
properties (22)
authorquochuy
permlinkre-biophil-re-quochuy-re-biophil-what-is-blockchain-architecture-20190330t231658787z
categoryresearch
json_metadata{"tags":["research"],"app":"steemit/0.1"}
created2019-03-30 23:17:00
last_update2019-03-30 23:17:00
depth3
children0
last_payout2019-04-06 23:17:00
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length92
author_reputation758,372,221,814,367
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id82,225,439
net_rshares0
@sayemsonai ·
I am new on your post. You have details information on cryptocurrency. I in no way understood why humans have these tendencies of making new acronyms for the entirety. You’re capable of identifying the way to percentage your research on steemit via yourself. I certain you’ll determine out a way to make investments too
properties (22)
authorsayemsonai
permlinkre-biophil-what-is-blockchain-architecture-20180607t072716736z
categoryresearch
json_metadata{"tags":["research"],"app":"steemit/0.1"}
created2018-06-07 07:26:48
last_update2018-06-07 07:26:48
depth1
children1
last_payout2018-06-14 07:26:48
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length319
author_reputation422,785,024,544
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id59,650,937
net_rshares0
@biophil ·
Weird comment, man/bot. You sort of mixed and matched others' comments in your own bad English.
properties (22)
authorbiophil
permlinkre-sayemsonai-re-biophil-what-is-blockchain-architecture-20180607t141541018z
categoryresearch
json_metadata{"tags":["research"],"app":"steemit/0.1"}
created2018-06-07 14:15:45
last_update2018-06-07 14:15:45
depth2
children0
last_payout2018-06-14 14:15:45
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length95
author_reputation45,223,914,794,461
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id59,697,060
net_rshares0
@steemitboard ·
Congratulations @biophil! You have received a personal award!

[![](https://steemitimages.com/70x70/http://steemitboard.com/@biophil/birthday2.png)](http://steemitboard.com/@biophil)  2 Years on Steemit
<sub>_Click on the badge to view your Board of Honor._</sub>


**Do not miss the last post from @steemitboard:**
[SteemitBoard World Cup Contest - Semi Finals - Day 1](https://steemit.com/steemitboard/@steemitboard/steemitboard-world-cup-contest-semi-finals-day-1)

---
**Participate in the [SteemitBoard World Cup Contest](https://steemit.com/steemitboard/@steemitboard/steemitboard-world-cup-contest-collect-badges-and-win-free-sbd)!**
Collect World Cup badges and win free SBD
Support the Gold Sponsors of the contest: [@good-karma](https://v2.steemconnect.com/sign/account-witness-vote?witness=good-karma&approve=1) and [@lukestokes](https://v2.steemconnect.com/sign/account-witness-vote?witness=lukestokes.mhth&approve=1)

---

> Do you like [SteemitBoard's project](https://steemit.com/@steemitboard)? Then **[Vote for its witness](https://v2.steemconnect.com/sign/account-witness-vote?witness=steemitboard&approve=1)** and **get one more award**!
properties (22)
authorsteemitboard
permlinksteemitboard-notify-biophil-20180712t172630000z
categoryresearch
json_metadata{"image":["https://steemitboard.com/img/notify.png"]}
created2018-07-12 17:26:30
last_update2018-07-12 17:26:30
depth1
children0
last_payout2018-07-19 17:26:30
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length1,156
author_reputation38,975,615,169,260
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id64,435,657
net_rshares0
@steemmillionaire · (edited)
$0.26
Just a side comment... I never understood why people have these tendencies of creating new acronyms for everything. As an example, "DLT, the International Conference on Developments in Language Theory is an academic conference in the field of computer science held annually under the auspices of the European Association for Theoretical Computer Science"
👍  ,
properties (23)
authorsteemmillionaire
permlinkre-biophil-what-is-blockchain-architecture-20180525t083423381z
categoryresearch
json_metadata{"tags":["research"],"app":"steemit/0.1"}
created2018-05-25 08:34:24
last_update2018-05-25 08:34:42
depth1
children2
last_payout2018-06-01 08:34:24
cashout_time1969-12-31 23:59:59
total_payout_value0.201 HBD
curator_payout_value0.063 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length354
author_reputation127,696,640,557,479
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id57,599,696
net_rshares70,624,831,740
author_curate_reward""
vote details (2)
@biophil ·
$0.03
For me it's about two things: shortening and branding. I use DLT because it's a nice quick abbreviation for a very big concept. I'd say blockchain, but a blockchain is only one way to implement a DLT.
👍  , ,
properties (23)
authorbiophil
permlinkre-steemmillionaire-re-biophil-what-is-blockchain-architecture-20180525t153424050z
categoryresearch
json_metadata{"tags":["research"],"app":"steemit/0.1"}
created2018-05-25 15:34:27
last_update2018-05-25 15:34:27
depth2
children0
last_payout2018-06-01 15:34:27
cashout_time1969-12-31 23:59:59
total_payout_value0.023 HBD
curator_payout_value0.007 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length200
author_reputation45,223,914,794,461
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id57,656,618
net_rshares8,687,013,523
author_curate_reward""
vote details (3)
@bitcoin-123 ·
__DLT__ was neccessary, so that IBM with Hyperledger also can playing on the market. Because a decentralized database could not sell as _Blockchain Technology_ only as DLT ...
properties (22)
authorbitcoin-123
permlinkre-steemmillionaire-re-biophil-what-is-blockchain-architecture-20181202t210810453z
categoryresearch
json_metadata{"tags":["research"],"app":"steemit/0.1"}
created2018-12-02 21:08:24
last_update2018-12-02 21:08:24
depth2
children0
last_payout2018-12-09 21:08:24
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length175
author_reputation592,839,822,956
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id76,260,482
net_rshares0
@tcpolymath ·
$0.13
I was going to not really bother leaving a comment because I don't know what I'm talking about and the post is a bit old, but then I read the other comments and I feel like you should get one that's actually interacting with the concept.

So: I find the two-previous-references design fascinating. It seems like there's no reason that shouldn't be able to work in some design, and if you could make it do that it's way better than blocks. Also the proof-of-work aspect seems arbitrary; it could be done with proof-of-stake as well.

Whether it works seems like it would depend on a more rigorous resolution algorithm, though. I'm not sure probabilistic is necessarily a bad way to do things mathematically but I'm betting it would have results that make a lot of humans uncomfortable. 

>In IOTA, if the transaction volume suddenly drops, it appears that the network instantly becomes more vulnerable to attacks.

Sure, but in this system, and especially in the hypothetical proof-of-stake version of this system, it would be pretty easy to set up a "white knight" account which simply produces null transactions to keep the volume up. 

As for your five questions:

>Does a cryptocurrency need a blockchain, or is IOTA's "Tangle" just fine?

I don't know if IOTA's specific tangle is just fine or not, but I don't think there's any reason to require a distributed ledger to work in only one dimension. (Linear blocks.) In fact it seems like a pretty big weakness to me.

>What are the consequences of separating users from block producers? Does Bitcoin

Not sure what this question was supposed to be. Steem seems to work pretty well on the blockchain side of things, but I'm guessing there was more to it than that.

> What are the fundamental limitations to secure transaction rates?

Now that one's really interesting. I not only have no idea I have no approach.

>Are the IOTA Foundation's claims that "the network gets faster the more it is used" correct?

This seems anti-entropic? I guess maybe it's tied to the nominal PoW somehow. But I would think that a large part of the value of such a network is that it's close to maximally fast all the time. (I'm still thinking more about the PoS version.)

>Why do Graphene-based DPOS chains apparently perform so much better than PoW mining chains? Has something important been lost, or are they just better?

My understanding is that PoW mining chains make things arbitrarily difficult in order to restrict block production. There's no useful work being done in the PoW part of things. If you can restrict block production in other ways - by stake, by delegation, or by designing a system that doesn't require it - then all of that hash power is completely unnecessary.
👍  
properties (23)
authortcpolymath
permlinkre-biophil-what-is-blockchain-architecture-20180606t101954554z
categoryresearch
json_metadata{"tags":["research"],"app":"steemit/0.1"}
created2018-06-06 10:19:57
last_update2018-06-06 10:19:57
depth1
children0
last_payout2018-06-13 10:19:57
cashout_time1969-12-31 23:59:59
total_payout_value0.099 HBD
curator_payout_value0.031 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length2,723
author_reputation72,516,729,960,969
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id59,507,015
net_rshares44,827,261,045
author_curate_reward""
vote details (1)
@thompson2 ·
@biophil you have made a great research.... Kudos
properties (22)
authorthompson2
permlinkre-biophil-what-is-blockchain-architecture-20180528t111124601z
categoryresearch
json_metadata{"tags":["research"],"users":["biophil"],"app":"steemit/0.1"}
created2018-05-28 11:11:33
last_update2018-05-28 11:11:33
depth1
children0
last_payout2018-06-04 11:11:33
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length49
author_reputation1,719,016,988,043
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id58,093,023
net_rshares0
@vishalchauhan748 ·
Sir thank you for creating gentlebot i have watched it it is doing good work and this is because of u  can u tell me how can i get upvote from gentlebot
properties (22)
authorvishalchauhan748
permlinkre-biophil-what-is-blockchain-architecture-20180701t061406221z
categoryresearch
json_metadata{"tags":["research"],"app":"steemit/0.1"}
created2018-07-01 06:14:09
last_update2018-07-01 06:14:09
depth1
children2
last_payout2018-07-08 06:14:09
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length152
author_reputation1,365,479,848,846
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id62,956,719
net_rshares0
@biophil ·
Gentlebot is generally completely automated; you can't make it vote for you.
properties (22)
authorbiophil
permlinkre-vishalchauhan748-re-biophil-what-is-blockchain-architecture-20180701t212942842z
categoryresearch
json_metadata{"tags":["research"],"app":"steemit/0.1"}
created2018-07-01 21:29:42
last_update2018-07-01 21:29:42
depth2
children1
last_payout2018-07-08 21:29:42
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length76
author_reputation45,223,914,794,461
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id63,046,056
net_rshares0
@vishalchauhan748 ·
Ok thanks for your respond
properties (22)
authorvishalchauhan748
permlinkre-biophil-re-vishalchauhan748-re-biophil-what-is-blockchain-architecture-20180702t024142274z
categoryresearch
json_metadata{"tags":["research"],"app":"steemit/0.1"}
created2018-07-02 02:41:45
last_update2018-07-02 02:41:45
depth3
children0
last_payout2018-07-09 02:41:45
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length26
author_reputation1,365,479,848,846
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id63,070,740
net_rshares0
@zam398 ·
Great quality write up. I only notice it today. Gonna need some research to some terminology in here.
properties (22)
authorzam398
permlinkre-biophil-what-is-blockchain-architecture-20180706t134730092z
categoryresearch
json_metadata{"tags":["research"],"app":"steemit/0.1"}
created2018-07-06 13:47:36
last_update2018-07-06 13:47:36
depth1
children0
last_payout2018-07-13 13:47:36
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length101
author_reputation10,349,188,767,982
root_title"What is Blockchain Architecture?"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id63,660,684
net_rshares0