Define profile choices
List the quorum profiles each validator may select and the assumptions governing independent local choice.
← All researchMF-PRISM-DLT-2026-01 / interactive guide
THE IDEA, MADE VISIBLE
Local choices. Global consequences.
Lower a quorum threshold and watch global intersection disappear, even though every local choice looks plausible.
Research reportSafety-Preserving Adaptive Quorum Selection in Federated Consensus Networks
Begin with a trust predicate
In this teaching network, every validator accepts any group of at least k of the same six validators. A quorum is a group that can satisfy those local rules.
- Envelope threshold
- 4 of 6
- Possible quorums
- 22
- Minimum overlap
- 2
The selectable-profile envelope admits 4-of-6. Its minimum pairwise overlap is 2; quorum intersection holds in this teaching network.
For uniform k-of-n: minimum overlap = max(0, 2k−n)
TRY THIS
Keep the default at 4-of-6 and enable the 3-of-6 reserve. The minimum possible overlap falls to zero.
What this experiment represents. Exact uniform-threshold teaching network, not the full AQR topology or a production Metriq certificate. Intersection alone does not establish Byzantine protocol correctness.
Distributed Systems · Research Paper
Safety-Preserving Adaptive Quorum Selection in Federated Consensus Networks
Profile envelopes, reserve-collapse, and certified reconfiguration
Research reportMF-PRISM-DLT-2026-01 / v1.1
Certify the envelope of every independently selectable local quorum profile before allowing adaptation. The paper studies reserve collapse and version transitions, with finite structural checks rather than a complete consensus implementation.
- Identifier
- MF-PRISM-DLT-2026-01
- Series
- Distributed Systems
- Edition
- Version 1.1
- Length
- 17 pages
- Reserved DOI
- 10.5281/zenodo.22728295 (record reserved)
01
Plain-language guide
3 minute explanation
What this paper is really saying.
The paper requires the network to certify every combination of locally selectable quorum profiles before validators are allowed to adapt among them.
federated consensusquorum setsadaptive control
In federated consensus, each validator chooses which groups of other validators it trusts. If nodes change those choices independently, a collection of individually reasonable updates can destroy the network-wide property that any two quorums overlap.
The paper treats all permitted local choices as one envelope. Safety is certified over the entire envelope—including mixed versions during transition—before adaptation is enabled.
02
How it works
The argument, without the notation.
The paper’s technical details matter, but the basic route can be understood in three moves.
Enumerate the envelope
Compute the union of quorums that can arise across all allowed profile combinations.
Certify transitions
Analyze reserve collapse and mixed-version states so reconfiguration does not rely on every validator switching simultaneously.
03
What it adds
The useful takeaways.
Safety is checked over the whole adaptive choice space, not one configuration at a time.
Reserve collapse exposes when nominal backup capacity disappears under combined choices.
Mixed-version transitions are treated as part of the safety problem.
04
Scope & limits
What this does—and does not—establish.
Current status
Quorum-envelope theory with exact finite verification and illustrative synthetic evaluation. The results do not constitute a complete consensus proof or production network benchmark.
This report develops a conditional method and evaluates it within the stated evidence. It does not establish production performance, operational safety, or calibrated real-world predictive skill beyond that evidence.
Quorum intersection is necessary but not a complete proof of consensus correctness or liveness.
The topology and profile family are illustrative rather than a production-network benchmark.
Independent-choice and Byzantine-fault assumptions must match the deployment being certified.
05
Why it matters
Why anyone should care.
Adaptive settings are only safe if every allowed combination remains structurally compatible. Certifying the whole choice envelope prevents local optimization from creating a global safety failure.
06
Key terms
The vocabulary, decoded.
These are the terms needed to understand the claim. The full paper uses them more precisely.
Quorum
A set of validators sufficient to support a consensus decision under the network’s trust rules.
Quorum intersection
The property that every two quorums share at least one validator.
Profile envelope
The full set of network configurations reachable from allowed local profile choices.
Federated consensus
Consensus in which participants define their own trust relationships rather than using one global membership rule.
07
Independent review
Where scrutiny should concentrate.
The strongest review is not a general reaction. It tests the steps most capable of changing the conclusion.
- 01Exact union of profile quorums and independent choice assumptions.
- 02Reserve-collapse law and mixed-version transitions.
- 03Quorum intersection versus full protocol correctness and liveness.
Publication record
Go from explanation to evidence.
This page is a reading guide, not a substitute for the manuscript. The public record links the explanation to the paper, source package, review materials, and persistent identifier.
- Document
- Research Paper
- Review status
- Open for independent review
- Published
- 2026-09-12
- DOI status
- Reserved · 10.5281/zenodo.22728295
- Canonical record
- MF-PRISM-DLT-2026-01
Metriq PRISM Laboratory, Safety-Preserving Adaptive Quorum Selection in Federated Consensus Networks, Metriq PRISM Laboratory Research Paper MF-PRISM-DLT-2026-01, Version 1.1, 2026. Corresponding contributor: Daniel H. Jeffery, ORCID 0009-0001-1200-6042. DOI: 10.5281/zenodo.22728295.