Post Fiat Essay Series- Validator Selection
Intro
I’ll finally come out and say it- the ai x crypto protocol I have been spending the majority of my time on for the last 5+ months is Post Fiat (https://postfiat.org/ , https://x.com/PostFiatOrg). We can gain edges with our capital, our compute, our skills, and our time. IMO post fiat is the single most asymmetrically beneficial use of time+skill that is out there (i was too late to contribute capital/invest - reeeeeeeeeeeeeeeeeee). You can interact with Post Fiat and get involved in the ecosystem NOW- I’ll write out a full onboarding essay here soon, but today I’m going to focus on comparing it to XRP upon which it is built (until it fully becomes an L1).
Headed by GoodAlexander (https://x.com/goodalexander), Post Fiat aims to bring about AGI/superintelligence in a decentralized way utilizing an improved version of the XRP foundation+validation structure. There is a focus on financial markets and products (which makes sense given Alex’s background and macro thesis). Wen DOOM etf?
XRP has proven the ever-wise CT voices wrong for years now, and digging into what’s going on and how Post Fiat is improving on it is a way we can gain an edge over those who simply listen to the echo chamber and write off more centralized coins.
Validation System Birds Eye
Post Fiat offers a streamlined, transparent approach to block validation without relying on legacy intermediaries or opaque governance structures. The system is designed to be lightweight and accessible, allowing users—whether individuals, teams, or institutions—to easily participate without needing to go through complex onboarding processes or centralized approval layers. Validator selection and participation are open, with clear, deterministic rules that prioritize decentralization and operational efficiency over social signaling or exclusivity.
Unlike many networks that rely on closed validator sets or heavily permissioned systems, Post Fiat is structured to minimize barriers while maintaining reliable throughput and security. The architecture favors simplicity and direct interaction, making it easier for participants to engage without unnecessary complexity (this is done primarily through the Task Node which allows anyone to interact and “contribute to the data lake” in exchange for PFT tokens- my next essay will likely be on that). Institutions can integrate without dealing with the friction typically found in older systems, and smaller participants can also access the network without being priced out or sidelined. The goal is to provide a neutral, transparent validation layer that is fully AI driven and doesn't cater to insiders or gatekeepers.
XRP Validation System
The XRP validator system is built around a Unique Node List (UNL) that is curated by the XRPL Foundation and Ripple-affiliated entities. Selection is opaque. Validators do not get paid. There is no native economic incentive to run a validator, other than ideological alignment or corporate partnership. This has created a system that appears decentralized, but in practice, its governance is effectively centralized.
Post Fiat Validation System
Post Fiat takes a different path. The Post Fiat validator system is designed to be transparent, dynamic, and economically aligned. It does three key things differently:
Validators Get Paid.
Post Fiat allocates 55% of its fully diluted value (FDV) to validators. Unlike XRP, Post Fiat creates a direct economic incentive to validate, creating real competition to join the Unique Node List.Validators Are Selected by AI.
Post Fiat uses LLM-driven selection to assess validator contributions. It’s not just uptime and block production — validators are evaluated based on their on-chain engagement, the quality of their memos, and their connection to real financial institutions. This AI-driven system is transparent and reproducible because all the prompts, models, and sampling methods are published and peer-reviewed.The System Evolves.
Validators in Post Fiat must actively interact with the network and generate useful on-chain data. This creates an ecosystem where validators contribute to a living financial ontology, rather than passively confirming transactions.
In simple terms:
XRP’s validators are static and unpaid. Post Fiat’s validators are dynamic, paid, and deeply integrated with the network’s financial intelligence.
Post Fiat isn’t just building a blockchain. It’s building a coordination system for finance in the AI era.
Ledger Validation Flow
Diagram A – XRP Ledger today
XRPL Foundation / Ripple (opaque choice) ———> Unique Node List (~150 nodes, 80 % super-majority) ———> Ledger Finality (no native validator pay)
Diagram B – Post Fiat monthly cycle
On-chain stats + Validator memos ———> Published LLM + open prompts (peer-reviewed, reproducible) ———> Ranked Validator Set ———> 55 % of total supply streamed as escrow
Comparison Table
What it means for institutional desks
Compliance baked-in – every memo and trade rationale is machine-readable, easing MiFID/OFAC burdens.
Revenue, not charity – 55 % FDV is real yield, turning a node line-item into P&L.
Single-source telemetry – the same LLM that scores validators can surface alpha and peer benchmarks, creating a “Bloomberg GPT” on-chain.
What it means for retail holders
Validators that fight for you – because operators are paid in-protocol, retail won’t shoulder hidden sell pressure.
Transparent scorecards – anyone can replay the LLM prompts and verify fairness; no more black-box governance (the safety/consistency of this feature is enhanced by increasing amounts of data that shows AI models are deterministic- to quote Alex, “Rank agreement is mathematically inevitable when models share the same conceptual understanding.”- read more here- https://goodalexander.com/posts/postfiat_day10_markets/)
Higher click-through story – Post Fiat ties straight to trading and wealth creation, the narrative retail already loves.
User rewards - Validators share rewards with users (as I keep saying, more on this and the task node soon…)