User stories

[pfletcherhill]

The goal of this issue is to list out all use-cases for parr, so that we build only useful things. This is meant to serve as a living document of interesting use-cases.

1. Make a dashboard of personal ethmoji earnings, both over time and cumulative.
2. See a list of all ethmojis my ethmoji items contributed to.
3. See a list of all accounts with more than 1000 ETH

[mertcelebi]

4. As an extension of first point, having a broad view of the activity for a given account number (probably more useful for smart contracts). For ethmoji, this could be to see amount the contract makes.

[pfletcherhill]

5. Stream new ethmoji or cryptokitty mintings (or any generic 721).
6. See a list of all accounts who have transferred tokens to me.
7. Identify users to airdrop tokens or collectibles to (basically spam 😬)

[mertcelebi]

8. Build the social graph of a given account to identify who they interact with (or even who they are)

[pfletcherhill]

9. Show a graph of new ERC 721 contracts by week (i.e. X axis is time, Y axis is number of newly deployed ERC 721 contracts)

[pfletcherhill]

• Show a list of ERC20 contracts, ranked by transaction volume
  Link: https://parr.io/editor/addresses

{
  "query": {
    "bool": {
      "must": {
        "has_child": {
          "type": "to_transaction",
          "score_mode": "sum",
          "query": {
            "match_all": {}
          }
        }
      },
      "filter": [
        {"term": {"type": "address"}},
        {"term": {"implements.erc20": true}}
      ]
    }
  }
}

[pfletcherhill]

• Show a list of every ICO that raised more than $1M. This would require adding ETH price to each block and adding a Crowdsale ABI to check addresses on and decode crowdsale-related logs.

[pfletcherhill]

• Show a list of airdrops and analyze how airdrops differ from ICOs by looking at transaction volume (or another proxy).

[pfletcherhill]

• Show a list of token staking events and the total amount of staked tokens (by summing the value of all staking events) for a given token.

[pfletcherhill]

• Show a list of burn events (i.e. transfers to 0x000...) and filter tokens by percentage of the total supply that has been burned.

[pfletcherhill]

• Develop a model for velocity of money and be able to quickly compute it for any token and filter tokens by their velocity. See Vitalik's post for reference https://vitalik.ca/general/2017/10/17/moe.html.

[pfletcherhill]

• Compare usage of original ERC721, ERC821, and current ERC721 implementations, using transaction volume by time as a proxy for usage. Allow for minimum volume filtering (i.e. show only contracts that have at least 50 transactions).

This buckets by those implementing a given contract, showing the number of transactions for each. @pfletcherhill Is there something more complex to the transaction volume? Like a moving average of daily/weekly transactions? This would require dates attached to transactions

{
  "size": 1,
  "query": {
    "bool": {
      "should": [
        {
          "term": {
            "to.implements.erc20": true
          }
        },
        {
          "term": {
            "to.implements.erc721": true
          }
        },
        {
          "term": {
            "to.implements.erc721_original": true
          }
        }
      ],
      "filter": [
        {
          "term": {
            "type": "transaction"
          }
        },
        {
          "term": {
            "to.is_contract": "true"
          }
        }
      ]
    }
  },
  "aggs": {
    "erc20": {
      "filter": {
        "term": {
          "to.implements.erc20": true
        }
      }
    },
    "erc721": {
      "filter": {
        "term": {
          "to.implements.erc721": true
        }
      }
    },
    "erc721_original": {
      "filter": {
        "term": {
          "to.implements.erc721_original": true
        }
      }
    }
  }
}

Link: https://parr.io/editor/c062a01488c2cd95bac76d6714c7aeea4aed1254

[pfletcherhill]

• Show a list of NFTs by market cap or at least by the sum of the values of the transactions sent to the contract. Also look into NFTs to see if there are generic auction or trading method signatures we can track for seeing how much each NFT is worth.

{
  "size": 1,
  "query": {
    "bool": {
      "filter": [
        {
          "term": {
            "type": "transaction"
          }
        },
        {
          "term": {
            "to.is_contract": "true"
          }
        },
        {
          "range": {
            "value": {
              "gt": 0
            }
          }
        }
      ]
    }
  },
  "aggs": {
    "group_by_contract_address": {
      "terms": {
        "field": "to.address.keyword",
        "order": {
          "total_volume": "desc"
        }
      },
      "aggs": {
        "total_volume": {
          "sum": {
            "field": "value"
          }
        }
      }
    }
  }
}

[pfletcherhill]

• Show a list of all addresses that have held or traded an NFT (or token) to track potential wash trading (i.e. where people trade among themselves to artificially increase transaction volume).

[pfletcherhill]

• Filter NFTs by transaction count volume over time.

Option 1 (Aggregation):

{
  "size": 1,
  "query": {
    "bool": {
      "filter": [
        {
          "term": {
            "type": "transaction"
          }
        },
        {
          "term": {
            "to.is_contract": "true"
          }
        },
        {
          "has_parent": {
            "parent_type": "block",
            "query": {
              "bool": {
                "filter": {
                  "range": {
                    "timestamp": {
                      "gte": "now-1d/d"
                    }
                  }
                }
              }
            }
          }
        }
      ]
    }
  },
  "aggs": {
    "group_by_contract_address": {
      "terms": {
        "field": "to.address.keyword"
      }
    }
  }
}

Options 2 (Using _score):
https://parr.io/editor/fe52950070bae656241329307501ecbabcadf429

[pfletcherhill]

Alerts

• Alerts will be important for making Parr very useful.
• Alert a user when specific criteria is met for a given contract
• Alert a user when criteria is met by a new contract you are not tracking (i.e. a new NFT hits X transaction volume).

[pfletcherhill]

Show a list of standard Crowdsale compliant contracts: https://parr.io/editor/61208362c2691eefb870f154f01f9e39d2581d01

[tyre]

@paul should we add that crowdsale contract to defaults? That seems like a pretty common/important one to search against

[pfletcherhill]

@tyre Yeah, doing it right now

[pfletcherhill]

Show a list of every address that spent more than 100 ETH in the EOS crowdsale (0xd0a6e6c54dbc68db5db3a091b171a77407ff7ccf)
https://parr.io/editor/45f26496b65f3949d4e978153c0c350e79bdbf83

{
  "query": {
    "has_child": {
      "type": "from_transaction",
      "query": {
        "bool": {
          "must": [
            {
              "term": {
                "to.address": "0xd0a6e6c54dbc68db5db3a091b171a77407ff7ccf"
              }
            },
            {
              "range": {
                "value.eth": {
                  "gte": 100
                }
              }
            }
          ]
        }
      }
    }
  }
}