# Bitmap.Community
Made for bitmappers, by bitmappers
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The mission of [Bitmap.Community](http://bitmap.community) is to enable bitmappers through community-sourced tools and data repositories.
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Bitmap has sparked the imagination of thousands, introducing people around the world to Bitcoin. With the emergence of Bitmap Theory a new metaverse standard was born - constructed on block data and social attributes which make Bitcoin the largest crypto economy in the world.
As Bitmap adoption continues to increase, choosing the right Bitmap could impact it's utility in future use-cases. Ecosystem players are asking:
* What makes one Bitmap more valuable than another?
* Which Bitmap traits make it unique?
* How can we determine a Bitmap's uniqueness (rarity) in a normalized way?
Putting an accurate valuation on a Bitmap requires an in-depth understanding of the many traits that comprise a Bitcoin block. This Gitbook aims to provide clarity on the traits and rarity calculation methods used on [Bitmap Community](https://bitmap.community). Feedback and contributions are welcome!
*Be the bitmap*
# Understanding Bitmap Rarity
Bitmap Theory revolves around the representation of Bitcoin's on-chain data and social attributes (aka "Blocktributes") that carry utility within in the Bitmap ecosystem. As such, the rarity of a Bitmap can be determined by it's on-chain data rank (when compared to other blocks) and the scarcity of the blocktributes it holds.
## Bitmap Traits
In it's simplest form we can categorize Bitmap traits as:
1. On-chain data
2. Blocktributes
**On-chain data** consists of block and transaction data stored immutably on the Bitcoin blockchain. Bitcoin contains is a wide variety of publicly available data, all of which can be accessed from any full node. To read more about Bitcoin's on-chain data see the [Bitcoin developer documentation](https://developer.bitcoin.org/reference/rpc/getblock.html#result-for-verbosity-1).
**Blocktributes** can be described as "social consensus traits". These traits have been determined valuable by the Bitmap community and have social origin. Examples of these traits include:
* Patoshi
* Billionaire
* Bitmap Punk
* Sub 100k
To learn more about blocktributes read this [standard](https://8bit-1.gitbook.io/blocktributes/) put fourth by members of the Bitmap community.
## Rarity Calculation Formula
The total rarity score for a Bitmap can be defined as the sum of rarity scores for each of it's traits. The rarity of a **single on-chain trait** can be calculated using this formula:
```
[Rarity Score for an On-chain Trait] = 1 / (1 - [Percent Rank])
```
Each Bitcoin block has many different on-chain datapoints which rarity can be derived from. The below traits have been selected as "main traits" as they are key components of a Bitcoin block. These traits are widely used in bApps including [bitfeed.live](https://bitfeed.live/) which uses them in part to render block visualizations.
* Total out
* Total size
* Transaction count
* Average fee rate
In addition to on-chain traits, blocktribute traits must also be considered when determining rarity. Similar to most Digital Artifact collections, blocktribute rarity can be determined by the number of blocks with that trait. The rarity score for a **single blocktribute trait** can be calculated using this formula:
```
[Rarity Score for a Blocktribute Trait] = 1 / ([Number of Blocks with that Trait] / [Total Number of Bitcoin Blocks])
```
See [Trait Definitions](/bitmap.community/trait-definitions#blocktributes) for a detailed list of definitions.
{% hint style="info" %}
Submit blocktributes to be included on bitmap.community [here](https://docs.google.com/forms/d/1lWmGm6-BXoDUNPsvR6lncPnPzXoFuP61Kupn9dmD8FU/edit).
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## Summary
* Bitmap traits consist of on-chain data and blocktributes
* The rarity of on-chain data can be calculated using percent rank
* The rarity of blocktributes can be calculated based on scarcity
* Total Bitmap rarity is the sum of rarity scores for the `total_out`, `size`, `avg_fee_rate` and `transaction_count` traits plus additional bonuses for blocktributes (varied by scarcity)
# Trait Definitions
A glossary of Bitmap traits
## On-chain Data
{% hint style="info" %}
Run a [Bitcoin Full Node](https://bitcoin.org/en/full-node) to extract this data yourself using the [Bitcoin RPC](https://developer.bitcoin.org/reference/rpc/).
{% endhint %}
| Term | Definition |
| ---------------------------- | ------------------------------------------------------------------------------------------------ |
| total\_out | Total amount of BTC in all outputs (excluding coinbase and thus reward \[ie subsidy + totalfee]) |
| avg\_fee\_rate | Average fee rate (in satoshis per virtual byte) |
| transaction\_count | The number of transactions in the block |
| size | The amount of data stored in a block (in bytes) |
| weight | The block weight as defined in BIP 141 |
| mint\_rewards | Newly minted BTC awarded to the miner |
| total\_fee | Transaction fees paid to the miner |
| total\_rewards | Total rewards earned by the miner |
| stripped\_size | The block size excluding witness data |
| avg\_fee | Average fee in the block |
| avg\_transaction\_size | Average transaction size |
| max\_fee | Maximum fee in the block |
| max\_fee\_rate | Maximum fee rate (in satoshis per virtual byte) |
| max\_transaction\_size | Maximum transaction size |
| median\_fee | Truncated median fee in the block |
| median\_transaction\_size | Truncated median transaction size |
| min\_fee | Minimum fee in the block |
| min\_fee\_rate | Minimum fee rate (in satoshis per virtual byte) |
| min\_transaction\_size | Minimum transaction size |
| ins | The number of inputs (excluding coinbase) |
| outs | The number of outputs |
| subsidy | The block subsidy |
| segwit\_total\_size | Total size of all segwit transactions |
| segwit\_total\_weight | Total weight of all segwit transactions |
| segwit\_transaction\_count | The number of segwit transactions |
| total\_weight | Total weight of all non-coinbase transactions |
| utxo\_increase | The increase/decrease in the number of unspent outputs |
| utxo\_size\_increase | The increase/decrease in size for the utxo index (not discounting op\_return and similar) |
| utxo\_increase\_actual | The actual increase/decrease in the number of unspent outputs |
| utxo\_size\_increase\_actual | The actual increase/decrease in size for the utxo index (not discounting op\_return and similar) |
## Blocktributes
| Term | Definition |
| -------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------- |
| is\_mythic | The genesis block |
| is\_epic | First block of a halving epoch |
| is\_rare | First block of a difficulty adjustment period |
| is\_patoshi | Block mined by Satoshi Nakamoto |
| is\_first\_transaction | Block which contains the first peer-to-peer transaction between Satoshi and Hal Finney |
| is\_palindrome | Block number which reads the same forwards and backwards |
| is\_pizza\_transaction | Block which contains the "pizza transaction" in which 10,000 BTC was exchanged for two Papa John's pizzas |
| is\_block\_9 | The oldest block to have spent the coinbase rewards. Bitcoin from this block have been used in several noteworthy transactions |
| is\_block\_78 | The first block mined by Hal Finney. |
| is\_billionaire | Block that contains total\_out greater than or equal to $1 billion USD calculated at 30k BTC |
| is\_mined\_billionaire | Block that contains total\_out greater than or equal to $1 billion USD at time block mined |
| is\_5tx\_perfect\_punk | Perfectly aligned 5 transaction punk |
| is\_7tx\_perfect\_punk | Perfectly aligned 7 transaction punk |
| is\_10tx\_perfect\_punk | Perfectly aligned 10 transaction punk |
| is\_13tx\_perfect\_punk | Perfectly aligned 13 transaction punk |
| is\_17tx\_perfect\_punk | Perfectly aligned 17 transaction punk |
| is\_21tx\_perfect\_punk | Perfectly aligned 21 transaction punk |
| is\_26tx\_perfect\_punk | Perfectly aligned 26 transaction punk |
| is\_43tx\_perfect\_punk | Perfectly aligned 43 transaction punk |
| Pristine Punk | 2 transaction punk with a small neck |
| Standard Punk | 2 transaction punk with a medium neck |
| Wide Neck Punk | 2 transaction punk with a wide neck |
| is\_grid\_punk | Perfectly aligned punk with a grid shape |
| is\_community\_punk | Distinctive punk recognized by the community |
| is\_ross\_ulbricht | Block which contains a transaction in which payments were made from Silk Road to Ross Ulbricht. |
| is\_mondrian | Blocks that resemble artwork by famous Dutch painter Piet Mondrian (known for his abstract, grid-based artwork) |
| is\_66\_dao | Block between 660000 & 669999 which are recognized by the 66 DAO |
| is\_prime\_number | Block which are prime numbers |
| is\_fibonacci | Blocks which are fibonacci numbers |
| is\_leap\_day | Block which falls on a leap day |
| is\_pizza\_day | Blocks from the day of the famous "Pizza Transaction" (blocks 56899 - 57093) |
| is\_same\_digits | Block which contain the same digits for all numbers |
| is\_notable\_event | Block which a historical event took place |
| is\_1\_tx | Block that contains 1 transaction |
| is\_2\_tx | Block that contains 2 transactions |
| is\_miner\_message | Block which contains a message encoded by the miner |
| is\_xspectar | xSPECTAR land on Bitmap Island |
| is\_bitmap\_valley | Metaverse land in Bitmap Valley |
| is\_sub\_10 | Block mined within the first 10 blocks |
| is\_sub\_100 | Block mined within the first 100 blocks |
| is\_sub\_1k | Block mined within the first 1000 blocks |
| is\_sub\_10k | Block mined within the first 10,000 blocks |
| is\_sub\_25k | Block mined within the first 25,000 blocks |
| is\_sub\_50k | Block mined within the first 50,000 blocks |
| is\_sub\_100k | Block mined within the first 100,000 blocks |
| is\_100k\_out | Block which has total outputs greater than 100k btc |
| is\_250k\_out | Block which has total outputs greater than 250k btc |
| is\_500k\_out | Block which has total outputs greater than 500k btc |
| is\_1m\_out | Block which has total outputs greater than 1M btc |
| is\_3m\_out | Block which has total outputs greater than 3M btc |
| is\_5m\_out | Block which has total outputs greater than 5M btc |
| is\_binary | Binary numbers |
| is\_micro\_strategy | Contains a transaction initiated by MicroStrategy |
| is\_chinese\_lucky\_number | 168 in Chinese (一六八 yi liu ba) has a similar pronunciation to 一路发 (yi lu fa), which means being lucky and prosperous all the way to (financial) success |
| is\_pre\_segwit\_full | Blocks which maxed out the block size of 1 MB before the SegWit upgrade |
| is\_dual\_palindrome | Palindrome block number inscribed on a palindrome sat |
| is\_1k\_txs | Block that contains 1,000 transactions |
| is\_2k\_txs | Block that contains 2,000 transactions |
| is\_3k\_txs | Block that contains 3,000 transactions |
| is\_4k\_txs | Block that contains 4,000 transactions |
| is\_5k\_txs | Block that contains 5,000 transactions |
| is\_6k\_txs | Block that contains 6,000 transactions |
| is\_7k\_txs | Block that contains 7,000 transactions |
| is\_8k\_txs | Block that contains 8,000 transactions |
| is\_1k\_fee\_rate | Block with average fee rate of 1,000 sat/vB |
| is\_2k\_fee\_rate | Block with average fee rate of 2,000 sat/vB |
| is\_3k\_fee\_rate | Block with average fee rate of 3,000 sat/vB |
| is\_4k\_fee\_rate | Block with average fee rate of 4,000 sat/vB |
| is\_5k\_fee\_rate | Block with average fee rate of 5,000 sat/vB |
| is\_6k\_fee\_rate | Block with average fee rate of 6,000 sat/vB |
| is\_7k\_fee\_rate | Block with average fee rate of 7,000 sat/vB |
| is\_power\_of\_10 | Block height is a power of 10 |
| is\_21e8 | Block with a hash that contains "21e8" |
## Miner Message