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
530 documented contracts

Unicorns

token

Unicorns (🦄) token by avsa — 1802B variant. Source recovered by bytecode analysis, verified on Etherscan and Sourcify.

0xab15f0...2d05ecFebruary 11, 2016

Congress

token

A second Democracy DAO governance contract deployed by Alex Van de Sande (avsa) on February 11, 2016, eight minutes after a nearly identical deployment, as part

0x286ca3...bb9dfeFebruary 11, 2016

Unicorns

token

Rare “Unicorn” token awarded for donating 2.014 ETH to the Ethereum Foundation Tip Jar in 2016.

0x89205a...2c43e7February 11, 2016

Sandwich

token

Standard ethereum.org tutorial token (Homestead, Mar 2016): name/symbol/decimals metadata, a public balanceOf mapping and an overflow-checked transfer firing th

0x19a448...2e71aaFebruary 12, 2016

Contract 0x14022b03...

unknown

The canonical SimpleStorage (Homestead, Mar 2016): a single uint with set(x) and a constant get() getter, the opening example of the Solidity documentation. One

0x14022b...145e4fFebruary 14, 2016

Contract 0xfd4a395c...

token

Byte-identical deployment of: Standard ethereum.org tutorial token (Homestead, Mar 2016): name/symbol/decimals metadata, a public balanceOf mapping and an overf

0xfd4a39...980dfeFebruary 17, 2016

holon

token

Bitnation Holon DAO deployed by avsa on Feb 17, 2016. First proposal contract for the Bitnation DAO seed, with membership ranks and voting.

0x5aaeb6...1beaedFebruary 17, 2016

BitnationShares

token

Bitnation Shares token deployed by avsa on Feb 17, 2016 during Bitnation migration to Ethereum.

0xedb378...98f144February 17, 2016

PiggyBank

program

A simple ETH piggy bank contract with deposit events, owner-only collect, and self-destruct. Uses a hardcoded instance ID (88) in deposit events to distinguish

0xd01d0b...2f09fdFebruary 19, 2016

Doubler

unknown

A pyramid scheme promising 2x returns to ETH participants. 28 ETH remains locked — those who entered last will never be paid out.

0xc18242...c3fa4bFebruary 19, 2016

DynamicPyramid

unknown

Self-adjusting pyramid scheme with declining multipliers (3x to 1.5x), deployed February 23, 2016. 140 participants entered, 136 still waiting for payout. Sourc

0xa9e4e3...9ab26cFebruary 23, 2016

MB COIN

token

Identical-runtime sibling. Standard ethereum.org tutorial token (Homestead, Mar 2016): name/symbol/decimals metadata, a public balanceOf mapping and an overflow

0xf86579...0d287bFebruary 26, 2016

Godlcoin

token

An ERC20-like token with mint, freeze, and transfer functionality based on the ethereum.org advanced token tutorial. 1,000,000 GOD tokens with 0 decimals.

0x7a3140...7d2449February 28, 2016

Contract 0xb3e80f76...

unknown

Byte-identical deployment of: The canonical SimpleStorage (Homestead, Mar 2016): a single uint with set(x) and a constant get() getter, the opening example of t

0xb3e80f...aa92ecFebruary 28, 2016

unityofmulti

token

Identical-runtime sibling. Standard ethereum.org tutorial token (Homestead, Mar 2016): name/symbol/decimals metadata, a public balanceOf mapping and an overflow

0x0170d3...82c7c6February 28, 2016

Contract 0x2c14395a...

unknown

Identical-runtime sibling. On-chain document/agreement holder (Homestead, Mar 2016): stores owner + a constructor-set string, returnContract() returns the text,

0x2c1439...4ff724February 28, 2016

Contract 0xe2abd8b9...

unknown

On-chain document/agreement holder (Homestead, Mar 2016): stores owner + a constructor-set string, returnContract() returns the text, kill() lets the owner self

0xe2abd8...6b2e4dFebruary 28, 2016

VegaToken

token

Identical-runtime sibling. The ethereum.org 'advanced' MyToken (Homestead, Mar 2016): an issuer-minted token with mintToken, freezeAccount/FrozenFunds and the s

0x637c66...c625e2February 29, 2016

Contract 0x4571ee45...

token

Standard ethereum.org tutorial token (Homestead, Mar 2016): name/symbol/decimals metadata, a public balanceOf mapping and an overflow-checked transfer firing th

0x4571ee...e7996cFebruary 29, 2016

Whiterabbit0xc3ffccd7

token

Frontier-era ERC-20 token (zero decimals), deployed March 1, 2016 by 0xfa5c91c9b4d0bebf79c1963ba13c760ff83fde09, one of 64 contracts from the same key.

0xc3ffcc...6c684dMarch 1, 2016

Contract 0x23a253a0...

unknown

On-chain document/agreement holder (Homestead, Mar 2016): stores owner + a constructor-set string, returnContract() returns the text, kill() lets the owner self

0x23a253...3cc37cMarch 4, 2016

Contract 0x07c2b29e...

unknown

Byte-identical deployment of: On-chain document/agreement holder (Homestead, Mar 2016): stores owner + a constructor-set string, returnContract() returns the te

0x07c2b2...99b3baMarch 4, 2016

Contract 0x412ef17d...

On-chain document/agreement holder (Homestead, Mar 2016): stores owner + a constructor-set string, returnContract() returns the text, kill() lets the owner self

0x412ef1...730dd4March 4, 2016

Contract 0xc3dfb8e0...

Byte-identical deployment of: On-chain document/agreement holder (Homestead, Mar 2016): stores owner + a constructor-set string, returnContract() returns the te

0xc3dfb8...9e7804March 6, 2016
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