Add uSPAC10g as price identifier

The DVM should support price requests for uSPAC10g price identifier.
The purpose of this price identifier is to create synthetic token, price of which is linked to the value of index of 10 most active SPACs (Special Purpose Acquisition Companies) shares.
That synthetic token can be used for creating speculative strategies at IPO market.
The difference from the existing UMIP-140 is that the proposed price ID does not require manually changing the basket of 10 SPAC shares on a quarterly basis.
The index basket is formed weekly by requesting top-10 gainers from the spacHero database.

Outcome of this week’s community call - 14th November 2022

NO GO

  • Correction factor which was in previous UMIP 140 has been removed, clarification sought on motivation and impact
  • Requires additional details on implimentation to clarify the resolution path.
  • Clarification sought on how the “switch” mechanism that updates the basket is implemented
  • Correction factor which was in previous UMIP 140 has been removed, clarification sought on motivation and impact
    Explanations are given in the answer to @pemulis’ questions in the PR discussion.

  • Requires additional details on implimentation to clarify the resolution path.
    We are doing this.

  • Clarification sought on how the “switch” mechanism that updates the basket is implemented
    Clarification is included in UMIP in response to @pemulis’ question in PR

Outcome of this week’s community call - 21st November 2022

NO GO

  • Awaiting testing on the effects of the current price feed implimentation
  • Awaiting analysis of potential for liquidation waves.
  • Implementation design under further consideration following the above.

Outcome of this week’s community call - 28th November 2022

GO with conditions

  • Submitted price feed implimentation review to confirm that it works as expected.