CIP-0010 | Add 21325 label for PRISM

[FabioPinheiro]

The Transaction Metadata Label to be registered is 21325.
This value 21325 represents the last 16 bits of 344977920845, which is the decimal representation of the concatenation of the hexadecimals 50 52 49 53 4d that form the word PRISM in ASCII.

https://github.com/input-output-hk/prism-did-method-spec

[FabioPinheiro]

I was playing around in making a new Indexer for PRISM. When I discovered the CIP-10.

But I'm not sure how to register the label so I created this PR.
There is already 6453 transactions with this label. I believe that all of them follow the PRISM DID method specs

[rphair]

@FabioPinheiro I can see the label number itself is correct: https://github.com/search?q=repo:input-output-hk/prism-did-method-spec%2021325 - but in tonight's biweekly CIP meeting we were looking to authenticate the need for the label from a current project representative. Are you in a position to do this and/or indicate how the label will be used?

[FabioPinheiro]

@rphair I'm part of the team that created the DID PRISM specification.

The DID PRISM is a Decentralized Identifiers https://www.w3.org/TR/did-1.0/.
It uses the Cardano blockchain as a Verifiable Data Registry (VDR).
Was developed by the Input Output Global Inc's "Atala Prism" group.
Its the main identity system of the Hyperledger's Identus project and other projects.
The "PRISM Node" is the official implementation of the prism-did-method-spec

Here is an example of the metadata that is already on mainnet that I pre-computed
https://github.com/FabioPinheiro/prism-vdr/blob/main/mainnet/cardano-21325

We are also creating a new specification just for the VDR part. For the Catalyst project#1300189 https://projectcatalyst.io/funds/13/cardano-open-developers/verifiable-data-registry-for-identus-in-cardano

[rphair]

Abundantly justified by #973 (comment).

[gitmachtl]

Here is an example of the metadata that is already on mainnet that I pre-computed
https://raw.githubusercontent.com/FabioPinheiro/prism-vdr/refs/heads/main/cardano-21325.csv

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[FabioPinheiro]

I updated the link https://github.com/FabioPinheiro/prism-vdr/blob/main/mainnet/cardano-21325