Increase ticker max length to 9

[kodemill]

No description provided.

[Quantumplation]

Justification for this PR: This is in preparation for registering the SUNDAE token metadata;

There's not a great abbreviation for SUNDAE, and we have already built up expectations around the token being named SUNDAE; changing it at the 11th hour would create significant confusion and create fertile soil for scammers.

Additionally, it's already been listed with this ticker on ecosystem sites like CoinMarketCap.

I've just noticed that the CIP here does specify a max length, but gives no justification for it; Is there a reason for 5 specifically? there are tokens on other chains with longer tickers, so it doesn't seem like an industry wide enforced limit.

[disassembler]

I fully support this. I thought the limitation of 5 was annoying myself as my personal token I minted (and hasn't been added to registry yet because of this same issue) is DISASM.

[Quantumplation]

Some evidence for distribution of token tickers in the wild on other chains:

https://ethereum.stackexchange.com/questions/25619/is-there-length-limits-on-token-symbols

[piotr-iohk]

Thanks! Can we also make corresponding update in README.

Additional test in here would be handy too. 😅

I don't know if this is enough or is there a need to do a change also elsewhere in this repo, but maybe not... 🤔
@rvl @sevanspowell.

I think we need the same change in cardano-wallet as there seems to be the same constraint there 🤷‍♂️

[rvl]

Perhaps we should increase the max length to 9 so that the MILKSHAKE ticker is also possible?

[Quantumplation]

@piotr-iohk I'm going to address your comments today; Would you like me to bump the max length to 9, as suggested by rvl?

[piotr-iohk]

Would you like me to bump the max length to 9, as suggested by rvl?

I don't have strong opinion. I'm fine with 9.

[Quantumplation]

@piotr-iohk feedback addressed :) I wasn't 100% able to confirm the test locally, as I couldn't get it to run the newly built version of the code, it kept falling back to the version at 5 characters, but it seemed straightforward enough.

[rvl]

@Quantumplation Would you also be able to raise a PR on CIP-26. There was no particular reason for choosing max length 5 - only that there should be some limit, and the ticker is meant to be a short identifier which abbreviates the token name. For example, the max ticker length on NASDAQ is 5, and MSFT is the ticker for Microsoft. If token creators choose long tickers, they may get truncated in GUIs.

[Quantumplation]

Will do :)

[Quantumplation]

Took me a little while @rvl, but here you go: cardano-foundation/CIPs#207