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Stake token contract is based on the official 'eosio.token' contract, with some additional functions to realize basic token economy mechanism.
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README.md

README.md

eos-stake-token

Specification

Stake token contract is based on the official 'eosio.token' contract, with some additional functions to realize basic token economy mechanism.

1. stake / unstake

Staking tokens takes effect immediately. Unstaking tokens takes effect with delay. Unstaking triggers a deferred transaction, the deferred time is configurable.

In case the deferred transaction does not execute when time is due, anyone can manually execute it by calling 'refund' method.

2. Deferred unstaking requests are stored in table temporarily.

A user can have several unstaking requests at the same time, each request is independent with a unique self-incrementing index as primary key. Unstaking requests can be cancelled during deferred period.

3. There are 3 types of token transfer, distinguished by memo.

  • Common transfer: Only for liquid tokens;
  • Liquid -> Staked: Transfer FROM's liquid token to TO, automatically become staked. If TO is in stake blacklist, this transfer will fail, token issuer can call 'addblacklist'/'rmblacklist' to manage blacklist. Transfer memo format: "Transfer:FromLiquidToStaked";
  • Staked -> Liquid: Transfer FROM's staked token to TO, automatically become liquid. In this case transfer fee is required, fee ratio and fee recipient is configurable. Transfer memo format: "Transfer:FromStakedToLiquid".

Extra features in MYKEY

If Smart Contract of dapps use the tranfer protocol in this sample, they will get build-in features and better experiences in MYKEY App.

Their dapps can use upcoming MYKEY SDK to build safe and solid dapps with basic token economy mechanism rapidly.

Who are using?

KEY token

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Thanks!

Special thanks to the community contributors help to audit and verify it.

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