The 4-Stage Conduit Pipeline — Vellum Cash GitBook

§Architectural Pipeline Overview#

The Vellum Conduit Pipeline is an autonomous, four-stage cryptographic state machine designed to ingest, shield, delay, and settle sovereign value across heterogeneous blockchain environments.

CODE

+---------------------------------------------------------------------------------------+
|                              THE VELLUM CONDUIT FLOW                                  |
+---------------------------------------------------------------------------------------+
|  STAGE 01              STAGE 02                 STAGE 03              STAGE 04        |
|  STEALTH INGRESS   ──► ARC COMMITMENT       ──► HEURISTIC EVASION ──► CLEAN EGRESS    |
|                                                                                       |
|  Ephemeral conduit     Shielded pool deposit;   Poisson delay         Permuted nodes  |
|  formulation; zero     Groth16 polynomial       buffer & liquidity    dispatch clean  |
|  ABI calldata trace    nullifier circuit        tranche sharding      native assets   |
+---------------------------------------------------------------------------------------+

§The Four Sequential Stages#

Stage 01: Stealth Ingress

Action: Funds enter via direct contract call or single-use app order address.

Trace: Zero ABI function parameters revealing recipient or intention.

Escrow: Native assets locked in the sovereign ingress conduit.

Stage 02: Arc Commitment

Action: Commitment C = Poseidon(r, v, s) inserted into the depth-20 Merkle tree on the Arc Blockchain.

Circuit: arc_deposit_v2.circom validates correctness of commitment parameters.

Nullifier: Secret key k and nullifier η = Poseidon(k, nullifier\_secret) established off-chain in private witness.

Stage 03: Heuristic Evasion

Action: Value enters the Poisson arrival buffer.

Execution: Liquidity tranche sharding decomposes transactions into non-linear denominations.

Result: Complete abolition of chain graph clustering and temporal heuristics.

Stage 04: Clean Egress

Action: Independent relayer submits Groth16 zk-SNARK proof of inclusion to the destination verifier contract.

Payout: Pristine native assets disbursed to the destination recipient.

Destruction: Nullifier η permanently registered on-chain, preventing double-spending while revealing zero information about the deposit.

§Cryptographic State Machine#

CODE

       [ USER DEPOSIT ]
              │
              ▼
       ( State: INGRESS_PENDING )
              │
              ├─────► ( Confirmation >= 12 blocks )
              ▼
       ( State: ARC_COMMITTED )
              │
              ├─────► ( Poseidon Tree Root Updated )
              ▼
       ( State: POISSON_QUEUED )
              │
              ├─────► ( Delay Timer Expired )
              ▼
       ( State: RELAYER_ASSIGNED )
              │
              ├─────► ( Groth16 Verifier Passed )
              ▼
       ( State: SETTLED_TERMINATED )