Skip to content

Latest commit

 

History

History
112 lines (80 loc) · 5.18 KB

nearcon-hackathon-example.md

File metadata and controls

112 lines (80 loc) · 5.18 KB
Raw

Example Apps for NEARCon 2022 Hackathon

This document demonstrates the Soulbound Token reference implementation, Human Class basic implementation and 2 use cases: Universal Basic Income and a Farm Drop.

Deploy an example SBT contract and Human Class

B=blacklist_accounts.i-am-human.testnet
S=sbt1.i-am-human.testnet
C=class1.i-am-human.testnet

near create-account $B --masterAccount i-am-human.testnet --initialBalance 4
near deploy $B target/wasm32-unknown-unknown/release/blacklist_human_addresses.wasm  "new" '{}'

near create-account $S --masterAccount i-am-human.testnet --initialBalance 7
near deploy $S target/wasm32-unknown-unknown/release/soulbound.wasm "new"  '{"issuer": "robertz.testnet", "operators": ["robertz.testnet"], "metadata": {"spec":"sbt-1.0.0", "name": "fist-bump", "symbol": "fist-bump-sbt"}, "blacklist_registry": "'$B'"}'

near create-account $C --masterAccount i-am-human.testnet --initialBalance 6
near deploy $C target/wasm32-unknown-unknown/release/soulbound_class.wasm "new" '{"required_sbt": "'$S'", "min_amount": 2}'

Now, we will use 2 test accounts: alice_star.testnet and bob_star.testnet. We will issue 2 tokens to Alice and one to Bob.

> near call $S sbt_mint '{"metadata": {"name":"fist band with Robert"}, "receiver": "alice_star.testnet"}' --account_id robertz.testnet --depositYocto 1
https://explorer.testnet.near.org/transactions/4PczF4tPHhsFT5V8zoyGH3PuYV2V4zqD2kDFLsZga9e8

> near call $S sbt_mint '{"metadata": {"name":"fist band with Noak"}, "receiver": "alice_star.testnet"}' --account_id robertz.testnet --depositYocto 1
https://explorer.testnet.near.org/transactions/9cWPogZGNRuPQrkPAn1gEyGFzjE9ccNEZHbGTxhmqLPb

> near call $S sbt_mint '{"metadata": {"name":"fist band with Noak"}, "receiver": "bob_star.testnet"}' --account_id robertz.testnet --depositYocto 1
https://explorer.testnet.near.org/transactions/GtbjrBTb6iei9FeXyC9W3bQcXXZrn5R93CSYFGYZ8cDd

Now we can verify that Alice is qualified in class1 and Bob is not:

> near call $C is_qualified '{"account": "alice_star.testnet"}' --account_id robertz.testnet
true
https://explorer.testnet.near.org/transactions/8JK7iSrf4BxUcBSBhZVkNqmpc1Ss2FLyQzsMBqnfZsfz

> near call $C is_qualified '{"account": "bob_star.testnet"}' --account_id robertz.testnet
false
https://explorer.testnet.near.org/transactions/5HyCLKMsMwCYp7p3skoXNE6NTLwhRvwwKXnChmFDnGtY


> near call $C is_qualified '{"account": "unknown.testnet"}' --account_id robertz.testnet
false
https://explorer.testnet.near.org/transactions/8UqsAX8H9bwBj6b2kbRZbVUaLXP236rboF3YTHgjJ2JR

UBI

We will utilize class1 Human Class to create a simple Universal Basic Income (UBI) smart contract. The UBI smart contract implemented for this demo is a naive implementation:

  • user to claim an UBI must firstly register himself.
    • during registration, we check if a user is qualified in class1. If not, the registration will fail.
  • once a user is registered, he can call claim method to receive daily UBI.
  • we will set 0.02 NEAR emission / day / user
  • enough NEAR must be provided to the contract to cover storage and UBI emissions.
UBI=ubi.i-am-human.testnet
> near deploy $UBI target/wasm32-unknown-unknown/release/ubi.wasm "new" '{"human_class": "'$C'", "emission": "20000000000000000000000"}'
https://explorer.testnet.near.org/transactions/5AQM5iAQRsCvX2nSd7wLguuRM9zMfQbuoiLXmgc8KQ9t

near send i-am-human.testnet $UBI 5

We firstly register Alice - registration should work because she is qualified in class1. Right after we will try to claim the UBI.

> near call $UBI register '{}' --account_id alice_star.testnet --gas=100000000000000
true
https://explorer.testnet.near.org/transactions/88z7Lj4SpyeUibuRNg1CHw8cPkYKsscvs2RH1zdgo8o3

> near state alice_star.testnet | grep amount
  amount: '199995118013366575500000000',

> near call $UBI claim '{}' --account_id alice_star.testnet
https://explorer.testnet.near.org/transactions/5niaa1JaZHNruUMFSDzCJS1jrqf8vDEoDcJt8Si4xxL1
> near state alice_star.testnet | grep amount
  amount: '200013390038916953900000000',

Registering Bob fails because he is not qualified in class1:

> near call $UBI register '{}' --account_id bob_star.testnet --gas=100000000000000
false
https://explorer.testnet.near.org/transactions/CGENd24zkKM9DkbVXhDLUm6H6L3Y8hH5iynTQ28HzhFK

Social Graph

Social Graph can be used to generate SBT tokens, proving positive pass of a social graph algorithm.

Cheddar Farm Drop

As an alternative to popular AirDrops, we are designing a [Cheddar Farm](https://cheddar.farm)

to stake community token and farm new token:

  • Only users who pass a human criteria can register to a Cheddar Farm Drops.
  • Each Farm Drop defines a staking token and a reward token. Staking token is usually one of the ecosystem tokens, while farmed tokens is a new token which is supposed to be distributed.
  • This way we create loyalty network:
    • new tokens has an access to a community of doers and humans.
    • new token can be a staking token in the future (which can drive a demand).
    • cheddar can be additional minted to support new projects entering to the NEAER market.