[MS] DOT #1667 - Merkle Mountain Belt (MMB)
Terminated 
terminated
Description

https://polkadot.subsquare.io/referenda/1667

  • A new data structure called Merkle Mountain Belt (MMB) is proposed.
  • MMB improves on existing structures like Merkle Mountain Range (MMR).
  • It helps reduce costs for bridges and other Polkadot applications.
  • A research paper and Rust library will be created.
  • Expected savings: around $1 million per year.
  • Work will be done from August 2025 to June 2026.
  • The team includes experienced Polkadot researchers and developers.
  • Changes from previous proposals include lower costs and simpler goals.
Appendants
2
#1
1mo ago

🟢 0 • 🔴 1 • ⚪️ 6
6 members abstained, higher than the 5-member threshold.
Vote #1: ABSTAIN
10 available members.
No CoI reported. DV delegation exercised.
https://polkadot.subscan.io/extrinsic/27022305-3
https://polkadot.subsquare.io/referenda/1667#4

#2
1mo ago

🟢 5 • 🔴 2 • ⚪️ 3
Vote #2: AYE
10 available members.
No CoI reported. DV delegation exercised.
https://polkadot.subscan.io/extrinsic/27178079-3
https://polkadot.subsquare.io/referenda/1667#12

Optionssingle
Results
Voters
10
one-person-one-vote
Information
Members
9
Timestamp
Created
Jul 10 2025 14:23
Start date
Jul 10 2025 00:00
End date
Sep 08 2025 00:00

Votes·10

14gM...deVb
14gM...deVb
14gMJV95zwxUsFEZDSC8mtBVifS6SypKJkfBKANkMsLZdeVb
Nay
Nay

I hope this proposal can be first reviewed by the fellowship lead by Gav.

12s6...nE8h
12s6...nE8h
12s6UMSSfE2bNxtYrJc6eeuZ7UxQnRpUzaAh1gPQrGNFnE8h
Abstain
Abstain
1xzc...1bX6
1xzc...1bX6
1xzcLSwo7xBFkJYZiL4EHaqFpuPTkH641E3V43W4cuk1bX6
Aye
Aye

We like the new proposal.

15fT...yBzL
15fT...yBzL
15fTH34bbKGMUjF1bLmTqxPYgpg481imThwhWcQfCyktyBzL
Aye
Aye

Switching to aye following strong endorsement from the technical community.

167Y...TY9F
167Y...TY9F
167YoKNriVtP4Nxk9F9GRV7HTKu5VnxaRq1pKMANAnmmTY9F
Abstain
Abstain

Can change my vote if tech fellowship avails this.

14Gn...YLEh
14Gn...YLEh
14Gn7SEmCgMX7Ukuppnw5TRjA7pao2HFpuJo39frB42tYLEh
Abstain
Abstain

I am not entirely sure about the technical content of the proposal, so I prefer to abstain.

12Kt...DCoJ
12Kt...DCoJ
12KtA8mtfsK1CyQb4utLiwG3ao22z77w2cM2GqnaL2RiDCoJ
Aye
Aye

after considering community feedback, i'm switching from abstain to aye. cross-chain activity is gaining momentum, and this proposal seems like it could help support that growth. early usage via hydration and bifrost suggests it’s worth exploring.

1ZSP...vx6w
1ZSP...vx6w
1ZSPR3zNg5Po3obkhXTPR95DepNBzBZ3CyomHXGHK9Uvx6w
Nay
Nay

I'd like to see this pursued via the fellowship or fellowship treasury

13ED...KQbF
13ED...KQbF
13EDmaUe89xXocPppFmuoAZaCsckaJy3deAyVyiykk1zKQbF
Aye
Aye

After reviewing this again, we still believe it could be funded elsewhere, but the advantages of this going through OpenGov at this very moment outweigh its disadvantages. The reduced cost in bridge fees and a faster go-to-market for JAM implementers makes this a sensible Aye.

12Hi...E9N3
12Hi...E9N3
12His7t3EJ38tjdBbivUzWQeaNCLKfMqtKp1Ed3xHMyCE9N3
Aye
Aye

With the strong show of support from both the technical fellowship as well as the W3F, my second vote is AYE.

Discussions·3

Hi, Robert Hambrock (one of the proposers of #1667) here.

I reckon the following comments on the 3 most recently stated abstain/nay reasons from some members should be considered:

1. Pursue via fellowship / fellowship treasury

@W1ZSPR3 : I'd like to see this pursued via the fellowship or fellowship treasury

@Polkadot Music Events Initiative : This isn't something we feel should be a focus and should also be funded elsewhere / approved by a specific bounty.

Please both see in particular answer 4. in the FAQ shared at the top of our referendum post: https://hackmd.io/@MerkleMountainBelts/FAQ

For other funding sources, please note that W3F has not issued any OpenGrants for more than $100k in the last two years. When we reached out to W3F a year ago, they directed us to treasury, see our reply to ChaosDAO's comment on our prior ref (comment below https://polkadot.subsquare.io/referenda/1317#2).

As an aside: We also believe that OpenGov should certainly support core R&D as a general strategy – this is too important to be kept centralized, dependent on the budget and policies of a single institution.

With respect to the bounty suggestion by @Polkadot Music Events Initiative : there is no bounty active at the moment for research work, and to my knowledge, there has never been one, and none are planned.

2. Wait for "missing" signal from technical fellowship

@The Ionian : I agree with the fellow members to wait for some signal from the technical fellowship before casting a final vote.

We wrote to Permanence's public Telegram channel about this exact topic before your vote.
In case you missed that: three technical fellowship members have voted aye and left supportive comments on the proposal, and specifically they are the three most qualified to assess the proposal given they directly work on bridges:

  1. Clara (Snowfork engineer & TF member),
  2. Seun (Hyperbridge lead & TF member), and
  3. Adrian (Parity bridge team lead & TF member)

Note also that two W3F researchers (Alistair and Andrew) have left supportive comments on the ref, and JAM Implementers DAO switched to Aye on the ref.

This update is directly related to the stated abstain/nay reasons of most other members.
I kindly ask Permanence DAO members to reconsider their voting positions based on the above updates.
Thank you for your attention.

Thanks - can you explain why the technical fellowship wouldn't fund this from their treasury? I may have missed it but in the link you posted, it just states that you thought it would be a fit for the technical fellowship treasury to fund it and they declined, but I didn't see any reason or link to a discussion of why.

Hey @W1ZSPR3 , thanks for following up on this.

Thanks - can you explain why the technical fellowship wouldn't fund this from their treasury? I may have missed it but in the link you posted, it just states that you thought it would be a fit for the technical fellowship treasury to fund it and they declined, but I didn't see any reason or link to a discussion of why.

From the FAQ post:

We did reach out to the Fellowship for funding almost a year ago (prior to the original referendum), but were informed that our work's nature was out of scope for funding by Fellowship. And to our knowledge, the Fellowship has not funded any research papers to date.

To add detail to this: We were in email contact with technical fellowship's secretariate, and they informed us that the technical fellowship deemed our proposal out of scope for funding by them, since the scope for technical projects would be limited to what the fellowship collective needs internally. An example of tooling that helps fellowship's day-to-day needs is https://collectives.subsquare.io/posts/18, i.e. the work of Bryan Chen (fellowship member) on ecosystem test environments.

For external confirmation of this, you can check out the related discussion on AAG #193, and the clarification of the technical fellowship on the scope of their treasury on OpenDev call July 2024 (both links directly to related sections of the calls).

Information
Members
9
Timestamp
Created
Jul 10 2025 14:23
Start date
Jul 10 2025 00:00
End date
Sep 08 2025 00:00
Results
Voters
10
one-person-one-vote
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