Potential Work Item: Blockchain-Links

Hello all,

I wanted to get this out there as a potential work item that might 
provide value to others in this space. Blockchain-Links, aka Blinks, as 
a way to reference blockchain/dlt data in a URI format.

https://www.blockcerts.org/blockchain-links/

Example:

`blink:bitcoin:mainnet:000000000000000000010382095b5308881ddf0902b59d0328a1401548383c5a:d7a008c9f9eab701132d394410f4e9d578790fb41848013fc5ba35951acdca24`


Manu had suggested the idea of using this concept for MerkleProof2019 
(https://w3c-dvcg.github.io/lds-merkle-proof-2019/) so that we could 
minimize the size of `proofValue` using CBOR encoding. This also opens 
up the possibility of referencing transactions in fields that are 
restricted to URI’s. From my experience, referencing blockchain 
transactions had typically been reserved for JSON or are done so in 
blockchain-specific ways.

The initial draft is an attempt to get the idea out there and adapt on 
it as needed. The idea is to take a similar approach to DID’s (as far 
as the DID URI goes) such that the `blink:chain-name` parameters can be 
specialized per blockchain or blink chain creator. It may be beneficial 
to have a registry of existing blink chains.

Some other considerations that might be useful to think through are:
   - Hard forks
   - Query/command parameters
   - Other possible examples of defining the most common chains such as 
bitcoin and ethereum.


Any thoughts would be appreciated!


Anthony Ronning
Learning Machine / Hyland Credentials