HackAtom

Don't be an exchange, be an Inter-blockchain Payment System!

• blazarbit.com - a web-site/dapp that clearly shows how you can work with blazarbit protocol.
• github.com/blazarbit - github project repository, which contains all the developments of this project during HackAtom Seoul 2022.

Content

• Content
• Interface
• Architecture
• Database
• Protocol
• Repositories

Interface

Tokens	NFT	Donation

Initial form	On one chain exchange example	Inter-blockchain NFT purchase	Modal first state

Initial state	Ready to confirm

Architecture

Database

Protocol

General transfer

{"transfer":{"address":"wasm1eg9twjpekcumz52fajvqd3equnlfeqcls8w368"}}

IBC transfer from Osmosis to Bostrom

{
"ibc_transfer": {
"address": "bostrom1v75ufqsddpeq38yphd89ztyt8gg2v73hdjexvd",
"channel_id": "channel-377"
}
}

Non-ibc(general) contract-hop example with double-hop

{
"contract_hop":{"contract_addr":"wasm13cnz8lvz0s0hpuaguutaqqjgw00j0qcp5umfqz46cm83glp97pnse2qyfx","commands":[{
"contract_hop":{"contract_addr":"wasm19rwewzc04p7nxramwy7v640q9ptk7w2anr7xrvar452dwja468cqta0pee", "commands":[{
"transfer":{"address":"wasm1eg9twjpekcumz52fajvqd3equnlfeqcls8w368"}
}]
}}]
}}

Swap on Osmosis example

{
"swap2": {
"pool_id": 1,
"token_out_denom": "ibc/27394FB092D2ECCD56123C74F36E4C1F926001CEADA9CA97EA622B25F41E5EB2",
"token_out_min_amount": "301620"
}
}

NFT fixed price init

{
"cw20_address": "osmo1v75ufqsddpeq38yphd89ztyt8gg2v73hx679yc",
"max_tokens": 100,
"name": "Example NFT",
"owner": "osmo1v75ufqsddpeq38yphd89ztyt8gg2v73hx679yc",
"symbol": "ENFT",
"token_code_id": 542,
"token_uri": "https://cosmos.network",
"unit_price": "20"
}

NFT on chain init

{
  "minter": "osmo1w8afpz2xzneplav3dkyadqsrwg3y2u0rre2gk6snnc0eke99r0vswye7pc",
  "name": "ExampleNFT",
  "symbol": "ENFT"
}

NFT mint

{
"mint": {
"owner": "osmo1v75ufqsddpeq38yphd89ztyt8gg2v73hx679yc",
"token_id": "test-token-id-0",
"token_uri": "https://google.com"
}
}

NFT mint check

{
owner_of: {
token_id: 'test-token-id-0'
}
}

NFT purchase via our mint logic

{
"purchase_n_f_t": {
"contract_addr": "osmo1zrjcljy56kdsrrvzuxgjtd2m0j6v9uvkrszrgfuzmmhfacz44h2sshwd42",
"owner": "osmo1v75ufqsddpeq38yphd89ztyt8gg2v73hx679yc",
"token_id": "test_nft_purchase_via_mint_0",
"token_uri": "https://google.com"
}
}

Inter-blockchain cross-contract hop

//todo: need to provide an exampla later

Repositories

• blazarbit/HackAtom - blazarbit project root documentation repository
• blazarbit/front - dApp for interacting with our blazarbit protocol & database.
• blazarbit/protocol - CosmWasm Inter-blockchain protocol implementation
• blazarbit/hasura - graphql hasura api configuration & postgresql database migrations