Frontier Era

The initial release of Ethereum. A bare-bones implementation for technical users.

2015-07-30 to 2016-03-14
Blocks 0 to 1,149,999
989 documented contracts

Contract 0xab684345...

dao

A one question poll from 2015 that only its own creator is allowed to vote in.

0xab6843...597f64October 31, 2015

Etheria

nft

Part of the first decentralized virtual world on Ethereum, deployed October 31, 2015. A fully on-chain hexagonal tile world.

0xb21f86...bdb7e4November 1, 2015

greeter

experimental

The classic Frontier 'greeter' (Nov 2015): a mortal-derived contract storing a constructor-set greeting returned by greet(), with an owner-only kill().

0x09338c...7e82d2November 2, 2015

Contract 0x852c72b8...

utility

The Greeter from solidity-baby-steps: a greeting set at creation that the deployer can also change afterwards, plus a block number reader.

0x852c72...96543cNovember 2, 2015

Contract 0x21e0c646...

utility

The multiply-by-seven example from the JSON-RPC documentation

0x21e0c6...84f15cNovember 2, 2015

MistCoin

token

The prototype token that inspired ERC-20, deployed by Fabian Vogelsteller on November 3, 2015, sixteen days before he submitted the ERC-20 proposal.

0xf4eced...fc95ddNovember 3, 2015

Purchase

utility

Safe remote purchase escrow holding a double deposit from both sides

0x522fa5...958b68November 3, 2015

bitcoin

token

bitcoin: An early experimental Ethereum token created in 2015

0x113054...e9b758November 3, 2015

MyToken

token

An early token contract deploying the MyToken template as Whitcoin (WHIT) on November 3, 2015, the same day the canonical MistCoin was created, illustrating the

0x796ed7...cb1c19November 3, 2015

MyToken

token

A MyToken template deployment by collectibletrust.eth on November 3, 2015, linking the same deployer responsible for the pre-ERC-20 currency contract from Septe

0x5f100e...12a9e0November 3, 2015

MyToken

token

An early token named Bizilicas (BiZ) deployed on November 3, 2015 using the MyToken template, one of several tokens created on the same day as the canonical Mis

0xab3652...baef52November 3, 2015

myToken

token

Fifty million indivisible units for a music project, all held by the deployer.

0x7739e6...6bf7f3November 4, 2015

Contract 0x7a491df6...

unknown

A copy of the greeter contract from the Frontier Guide, used to put a commercial mortgage commitment form onchain in 2015.

0x7a491d...21f012November 4, 2015

token

token

Deployment of the classic Solidity tutorial Coin contract with a default supply of 5,000 tokens and a CoinTransfer event.

0xbdc57b...68a548November 4, 2015

token

token

Deployment of the classic Solidity tutorial Coin contract with a default supply of 500 tokens and a CoinTransfer event.

0x283f11...2cea11November 4, 2015

Token

token

Standard ethereum.org tutorial token (Frontier, Nov 2015): name/symbol/decimals metadata, a public balanceOf mapping and an overflow-checked transfer firing the

0x14cd3a...6dd181November 4, 2015

Contract 0xc3e92919...

utility

The dapp-bin standardized currency API, with one slot the code never touches

0xc3e929...075b04November 5, 2015

Contract 0x09acc555...

dao

A one question poll from 2015 that only its own creator is allowed to vote in.

0x09acc5...70a3f7November 5, 2015

Contract 0x4ed46138...

dao

A one question poll from 2015 that only its own creator is allowed to vote in.

0x4ed461...ab073fNovember 6, 2015

Contract 0x09cfde4a...

unknown

A copy of the greeter contract from the Frontier Guide, used to put a commercial mortgage commitment form onchain in 2015.

0x09cfde...3711c7November 6, 2015

FirstCoin

token

The 2015 ethereum.org tutorial token, created with a supply of 1,000,000 units to its deployer.

0xe60a2c...3db9c0November 6, 2015

TerraNullius

utility

A public claim register by Semiel: anyone can write a message onchain and it is kept with their address and the block it arrived in.

0x4a7dcc...a3bdcdNovember 6, 2015

Contract 0x5df67137...

utility

A public claim register by Semiel: anyone can write a message onchain and it is kept with their address and the block it arrived in.

0x5df671...140f32November 6, 2015

Contract 0xbee6bc18...

utility

A public claim register by Semiel: anyone can write a message onchain and it is kept with their address and the block it arrived in.

0xbee6bc...0c19bdNovember 6, 2015
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