which is the last block to contain zero transactions (block with, only reward transaction)? 

[Frozen / Locked / Offline addresses]

Frozen / Locked / Offline addresses

tl;dr - "vijay" <uniquebits://vijay>

All I want is to have single unique id, to use it for my BTC transactions, like this above link, that would return my then current bitcoin address (or whatever I set).  

And yes, this would make all my transactions "nonymous", but that's ok with me.


https://blockchain.info/tags

This is another way to implement what I was asking for. now I can't casually own and use single bitcoin address forever, but this solves my problem in a different way.

If allowed to retag, I can associate my tags with new addresses. I think, that's not possible now, and it is only blockchain.info specific.

Interestingly blockchain.info allows to tag multiple addresses with the same tag name.

This is not the same as offline / frozen addresses, but I can use new address everytime.

but, firstbits was so cute..

Bitcoin unit name suggestions,

1. using single currency symbol; subfix / superfix 1, 2, 3 to distinguish among micro / mega units

2. get two symbols approved; B & b. BTC 0.1=1b100; 0.003=1b3; 0.00004=2b40; 0.000000009=3b9; 1234=1B1.234; 5670000=2B5.67

Makes any sense?

What's the right way to get developer / reputed member's attention for my post without looking like spamming?

1. Personal messages
2. Tag ATTN, attn-sr, attn-hero, etc.
3. PM moderators

So this is my post,

https://bitcointalk.org/index.php?topic=146710.msg

I think, for most peoples, or average salary in BTC is going from 3 digits sum to 2 digits sum.. 

whats the exchange rate for different countries when salary in BTC move from 3 digits sum to 2 digits sum, or <100 BTC?

old (>2010) nokia phones, with Symbian S60. ($20 - $30)
opera mini + offline bitaddress.org
With no SIM, WiFi & Bluetooth (or, turned off)

Technically, other phones could also be useful.
 
whats your ideas..?!  

[Frozen / Locked / Offline addresses]

Frozen / Locked / Offline addresses

What is a 'frozen' address?
    An address locked for spending (but yet it can receive money)

Why you want to 'freeze' an address?
    To prevent spending in case of stolen / compromised private key

How is that possible?
    Simple. protect it with another key.

How you protect this 'freeze' key?
    Generate offline. Use one key only once (twice, for lock and unlock)

but, turtles all the way down?
    two turtles better than one turtle?  

What is made possible now by this 'freezing'?
    you can use your cool firstbits address forever without worrying about stolen key

Why so much attachment to some random bit, after all it is free?
    may be it is trivial in my case (1vijay), but what about these firstbits 1, 1paypall, 1citi, 1microsoft, 1google, etc.

Is this some kind of planned loophole / backdoor that allows access to .. ?
    no, only who can spend can freeze

How safe is this 'frozen' address ?
    the safest; safer than a paper wallet

Safer than a paper wallet?
    yes, spending is prevented by implementations

The safest, huh?
    yes, hm.. I mean, only as safe as your 'freeze' key

How will this be implemented?
    A team working on this (now, its only me)

I want this to be implemented, what can I do?
    let the world know. participate in the poll of this thread

(to be continued)

SGD to Mtgox USD easy, quick and with less transaction fees (preferably 0)?

Anyone willing to sell BTC for SGD (bank transfer, posb / dbs) ?
I can buy up to 4 BTC now. thanks.

What are the ways to buy gold bars in Singapore? Is it possible to buy directly from government, or government approved organizations?
Whos top gold seller, or most reliable gold seller in singapore?
thanks.

One of these three profiles could be satoshi ?!

• casascius
• Mike Hearn
• Pieter Wuille

my other 4 suspects that failed to make into the above list,

• fabianhjr
• Cusipzzz
• Raulo
• kseistrup

search criteria I will leave it to your guesses. 
not so tricky. 

Is it possible for Mtgox, or some other exchange to manipulate BTC price, by introducing fake buy / sell orders?

As far as I know, all trades that happen within exchange need not be logged in to block chain. Even if it is logged in blockchain, it is equally impossible to know the exchange rate. 

[Abstract]

Abstract

To enable users to transfer ownership of firstbits address to others

Motivation

In case of compromised private key, or other reasons (for profit), to allow users (owner) of address

Use Cases

  1. companies or banks might want to use fancy firstbit addresses, 1google, 1citi, 1paypal or 1, etc.
  2. compromised private key, so user wants to use different address with the same firstbits pattern

Procedure

  when a user does a transaction and following three points are true,
    1. user transfers all (100%) BTC to new address
    2. to-address firstbits pattern matches with from-address
    3. from-address owns the current firstbits address

  then, it is considered firstbits address ownership transfer

Considerations
  1. bitcoin APIs, https://en.bitcoin.it/wiki/Original_Bitcoin_client/API_Calls_list could optionally support usage of firstbits address

--
firstbits: 1vijay

No,  I am not converting.

Just saw this message from, Bitcoin Forum > Economy > Trading Discussion >  forum, by Rampion, and answering here as I am new to bitcointalk. 

https://bitcointalk.org/index.php?topic=142156.0
https://bitcointalk.org/index.php?action=profile;u=80216

so,  here is my answer,

1. trade no more than 1BTC at a time
2. you can startwith 100BTC for first time (only once), so than you will have some fiat money in your account
3. choose an optimum amount, like, $0.1, $0.2, or $0.5 (this is difficult, but if you are in hurry choose less)
4. lets' say you have chosen, $0.2
5. If BTC/Fiat exchange rate is up, (like, $25.5 to $26.7), place 1BTC sell order
6. If BTC/Fiat exchange rate is down, (like, $25.5 to $26.3), place 1BTC buy order
7. in the end you would have got much better exchange rate

this is not the quick way, but you would earn much more profit this way. 

all the best.

Hi, first post. 

Anyone from Singapore willing to sell bitcoins / meet up?

--
Vijay