# Bitcoin Identity Standards and Applications
* [Bitnation taps Blockchain tech to aid Refugees](https://www.newsbtc.com/2015/09/09/bitnation-taps-blockchain-tech-to-aid-refugees/)[[**^**](#Bitnation-and-the-United-Nations)]
* [BTCR DID Method](https://w3c-ccg.github.io/didm-btcr/) — The Bitcoin Reference DID method (did:btcr) supports DIDs on the public Bitcoin blockchain. The Bitcoin Reference method has minimal design goals: a DID trust anchor based on the Bitcoin blockchain, updates publicly visible and auditable via Bitcoin transactions, and optionally, additional DID Document information referenced in the transaction OP_RETURN data field. No other Personal Identifiable Information (PII) would be placed on the immutable blockchain.
## Spidchain
* [Spidchain](http://www.spidchain.com/) [[**wp**](https://drive.google.com/file/d/0B89WE3IIHmy1Z0ZSSWVmVEtaaG8/view)]
* "offers a platform for self-sovereign identity, including desktop and mobile apps for end-users. It uses Decentralized Identifiers (DIDs) - backed by optionally Bitcoin or Ethereum - to implement a marketplace for verifiable claims. The Spidchain applications allow individuals to create, recover, and revoke DIDs, to authenticate, to sign and verify files and claims, and more."
### Spidchain Bitcoin Repos [**^**](#contents)
* /SpidChain/spidchain-btcr - An implementation of the btcr standard for self sovereign distributed digital identity
* /SpidChain/electrumx Forked from kyuupichan/electrumx
- Alternative implementation of spesmilo/electrum-server
* /SpidChain/btcr-spv - Poc of an SPV implementation of BTCR
* /SpidChain/satoshis-wheel-of-fortune - Pick a name from a list randomly in a provably honest way
* /SpidChain/txref-conversion-js - Forked from WebOfTrustInfo/txref-conversion-js
- Javascript library for converting txids to txrefs and back