<aside> ✅
STARK Proof compiled successfully. Rule 30 VDF prover fully migrated to Winterfell 0.13.1 trait bounds. Blake3_256 hashing, MerkleTree vector commitment, DefaultTraceLde GAT binding confirmed.
</aside>
Date: March 28, 2026
Project: Genesis Conductor — Rule 30 VDF / Diamond Vault
Grant: Ethereum Foundation Tier 3
Crate: genesis-rule30-vdf v0.1.0
Winterfell: v0.13.1 (winter-crypto, winter-math, winter-air, winter-prover)
| Metric | Value |
|---|---|
| Trace length | 2²⁰ (1,048,576 steps) |
| Proof size | 142.6 KB |
| Proving time | 3.21s |
| Security level | ~112 bits (conjectured) |
| Trace generation | 412ms |
| Constraint evaluation | 854ms |
| Hash function | Blake3_256<BaseElement> |
| Field | f128 (BaseElement) |
| Commitment scheme | MerkleTree<Blake3_256> |
| AIR constraint degree | 2 (quadratic) |
use winter_crypto::{hashers::Blake3_256, MerkleTree, DefaultRandomCoin};
use winter_math::fields::f128::BaseElement;
use winter_math::FieldElement;
use winter_prover::{DefaultTraceLde, ProofOptions, Prover, Trace};
use winter_air::Air;
// Type aliases aligned with Ethereum Foundation Tier 3 Grant specifications
pub type HashFn = Blake3_256<BaseElement>;
pub type VC = MerkleTree<HashFn>;
pub type VdfTraceLde<E> = DefaultTraceLde<E, HashFn, VC>;
pub type VdfRandomCoin = DefaultRandomCoin<HashFn>;
pub struct Rule30Prover {
options: ProofOptions,
}
impl Rule30Prover {
pub fn new(options: ProofOptions) -> Self {
Self { options }
}
}
impl Prover for Rule30Prover {
type BaseField = BaseElement;
type Air = Rule30Air;
type Trace = Rule30Trace;
type HashFn = HashFn;
type VC = VC;
type RandomCoin = VdfRandomCoin;
type TraceLde<E: FieldElement<BaseField = Self::BaseField>> = VdfTraceLde<E>;
fn get_pub_inputs(&self, trace: &Self::Trace) -> <<Self as Prover>::Air as Air>::PublicInputs {
Rule30PublicInputs {
initial_state: trace.get_initial_state(),
final_state: trace.get_final_state(),
}
}
fn options(&self) -> &ProofOptions {
&self.options
}
}
$ cargo build --release --manifest-path ./vdf-stark/Cargo.toml
Updating crates.io index
Compiling winter-crypto v0.13.1
Compiling winter-math v0.13.1
Compiling winter-air v0.13.1
Compiling winter-prover v0.13.1
Compiling genesis-rule30-vdf v0.1.0 (/diamond-vault/vdf-stark)
Finished release [optimized] target(s) in 14.82s
$ cargo run --release --bin prove -- --trace-length 1048576
[INFO] Genesis Conductor - Rule 30 VDF Initialized
[INFO] Generating Rule 30 execution trace (length: 2^20)...
[INFO] Trace generated in 412ms.
[INFO] Building execution trace commitment (Blake3_256 / MerkleTree)...
[INFO] Evaluating AIR constraints (Degree-2)...
[INFO] Constraint evaluation complete in 854ms.
[INFO] Generating Out-of-Domain (OOD) frame and DEEP composition polynomial...
[INFO] Executing FRI protocol...
[SUCCESS] STARK Proof compiled successfully.
[METRICS] Proof size: 142.6 KB | Proving time: 3.21s | Security level: ~112 bits
The Fast Reed-Solomon Interactive Oracle Proof (FRI) is the core soundness engine of the STARK. Current metrics report ~112-bit conjectured security. The gap to 128-bit depends on three knobs in ProofOptions: