Ethereum pre-sale data detailed: more than half of the ether has never been moved

Overview: Ethereum’s Initial Public Offering (IPO)

Pre-sale period: 42 days (July 22, 2014 to September 26, 2014)

Ethereum IPO Bitcoin address:
36PrZ1KHYMpqSyAQXSG8VwbUiq2EogxLo2

Ethereum pre-sale price:

From 1 Bitcoin to 1,337 Ethereum, it increased to 1 Bitcoin to 2,000 Ethereum (btceth)

The price of Ethereum increased from 0.0005 to 0.000748 (in BTC)

In USD, the price of ETH increased from $0.28 to $0.38 (estimated)

Ether sold: 60,108,506.26 (83.47% of initial allocation)

Ether created for the Foundation:

=Sold * 198/1000
= 11,901,484.239480 ETH (16.53% of initial allocation)
Address 0x5abfec25f74cd88437631a7731906932776356f9

Pre-sale orders : 8,947
Number of valid addresses for pre-sale orders : 8,890

Initially allocated transaction count:

= 8,893
= 8,890 + Foundation + 2 0 wei addresses ( wei，以太坊的最小的单位)
Initial allocation of ether :
＝72,009,990,499,480,000,000,000,000 wei
≈ 7.2 x 10²⁵ wei
=72,009,990.49948 ETH ≈ 72 million ETH

Bitcoin received from Ethereum IPO :

= 3,152,935,639,551 Satoshi ≈ 31,529 Bitcoin

≈ $18,338,053 (estimated)
Bitcoin burned: 0.8945 BTC
Bitcoin used for transaction fees: 1.7898 BTC

Ethereum Presale

Purchases can be made through Ethereum point of sale, or using a Python tool. The process begins with an Ethereum private public key pair being generated to obtain the Ethereum address. The encrypted file encrypted with the key is then sent to the buyer. A Bitcoin address is then generated, assuming the Ethereum address is the SHA256 (RIPEMD160()) of the Bitcoin public key. Bitcoins are then sent to the exodus crowdfunding address, with 20,000 satoshis being the network fee, 10,000 satoshis being sent to the response Bitcoin address as change, and the remainder being left in the exodus address for the Ethereum team to use. Note that the private public key pair is unknown to the Bitcoin address, so the 10,000 satoshis are burned to record the pre-sale order.

Solved the 0 wei exception

The following two sales orders were sent after the ether presale period ended, so no ether was credited, but they appear in the genesis block. This is most likely a bug in the genesis block generation tool.

1. Bitcoin trading sales order:
3d4e17efa6c9e1eac81d950deafc9b4abd905694358bbfd39cedcc82336f1ca5

Ethereum address: 0x5ed3f1ebe2ae6756b5d8dc19cad02c419aa5778b

2. Bitcoin Trading Sales Order:
eb49a9f1e6822938a208c6582797dcb0fdbd4ca0b3dd85c0ebaeb471ecdf2f2e
Ethereum address: 0x00c40fe2095423509b9fd9b754323158af2310f3

³2 Anomalies in pre-sale records

Based on the above discussion, if the buyer sends 1 Bitcoin, when the Ethereum price is 2000 coins/BTC, his Ethereum address will be credited with 2,000 Ethereum, but there are 30,000 Satoshis that will not be accepted by the Exodus address.

(Bitcoin received in Exodus + 30,000 Satoshi) * Fee (99,970,000 + 30,000) Satoshi * 2000 Ether/BTC = 2000

As observed, if Bitcoin transaction fees and burned Bitcoins do not add up to 30,000 Satoshis, the ETH balance may be miscalculated. There are two such cases:

1. Bitcoin trading sales order:

a29c2307ccb90675785aa60e25a73aac10efd939b6a5daef4c9e91473177d3c0
Ethereum address: 0xd7ebddb9f93987779b680155375438db65afcb6a
exodus: 5,000,000 satoshis

Transaction fee: 10,000 Satoshis Burned: 859,110 Satoshis

2. Bitcoin Trading Sales Order:

b6259f15e892de0b5e05fb2f291263eafb29492a4ac22f8b712fd3b4e41ba82d
Ethereum address: 0xf8f226142a428434ab17a1864a2597f64aab2f06
exodus: 9,000,000 satoshis Transaction fee: 10,000 satoshis Burn: 990,000 satoshis
Ether: 172.473 each

In both cases, the buyer sent more Bitcoin than was needed, saving the transaction fees required to access the burn address. But it is also possible that the buyer created a Bitcoin private public key pair instead of an Ethereum one, and does not have access to their Ether.

Abnormal costs

Six of the sales orders used a 30,000 satoshi transaction fee, and two of the sales orders used a 10,000 satoshi transaction fee.

Bubble chart explanation: Each bubble represents the number of purchases completed each day (x-axis), divided into 5 categories (y-axis), and the size of the bubble represents the count of purchases in this category. The largest bubble contains 877 counts.

Total pre-sale accounts:

= 8,890
= Never accessed the account + Accessed the account = 5,698 (64.1%) + 3192 (35.9%)
Total pre-sale ETH

= 60,108,506.26 Ether = Ether never visited + Ether visited = 30,792,269.227 (51.2%) + 29,316,237.033 (48.8%)

Accounts visited = at least one output transaction First visit = date of first transaction, which can be either an input or an output transaction Ether in the account = balance

Ether never accessed = the sum of all account balances that have not had any output transactions

All pre-sale accounts can be divided into 5 categories according to the amount purchased (x-axis)

The Ethereum Frontier launch (July 30, 2015) is the first time that publicly sold ether will be available for use. Since the Ethereum whitepaper was released in November 2013, a total of 9 proof-of-concept (POC) test networks have been generated. To achieve the public launch of Frontier, the Ethereum development team selected the hash value of the test network block 1,028,201 as an input to determine the launch time of Frontier. This block was mined soon after the release of Frontier.

More information:

1. Interactive charts and raw data

http://slacknation.github.io/medium/1/1.html

2. Announce pre-sale

https://blog.ethereum.org/2014/07/22/launching-the-ether-sale/

3. Python initial block generator script

https://github.com/ethereum/genesis_block_generator

Original article: https://medium.com/@slacknation/overview-ethereum-s-initial-public-sale-563c05e95501#.zhnqkrz6w
Author: slacknation
Compilation: Overnight porridge
Source (translation): Babbitt Information (http://www.8btc.com/ether-accounts-never-accessed)