Transaction Details
| TX Hash | d509d72527b7ec5d60397942bf58eb5bfec082be7eed422eb70ffb3e8de9162c |
| Block | 11,434 |
| Timestamp | Sun, 15 Mar 2026 05:20:45 GMT (1d ago) |
| Confirmations | 7 |
| Fee | 6.0 USDm |
| Size | N/A |
| Weight | N/A |
| Version | 9 |
Transaction Type
| Type | TRANSFER |
Inputs & Outputs
| Inputs | 1 |
| Outputs | 2 |
| Ring Size | 1 |
| RingCT Type | 11 |
Note: Actual amounts and sender/recipient addresses are private (FCMP++). Only the transaction structure is visible on-chain.
FCMP++ Proof Transcript
| Proof Type | FCMP++ Full-Chain Membership Proof |
| Anonymity Set | Entire Chain (all outputs ever created) |
| Inputs | 1 |
| Proof Size | 4,000 bytes |
| Curve Tree | Selene (C1) dual-curve architecture |
| Tree Layers | 3 |
| Tree Root | 94fa897c8f5418b0f9ba416a86a3bbe88080e9827f6e11b33f61e74b7d8596a7 |
Curve Tree Structure
Layer 0 (Leaves) : Ed25519 output tuples (O, I, C) → Selene (C1) hashes Layer 1 (Interior) : Selene (C1) → Helios (C2) commitments Layer 2 (Interior) : Helios (C2) → Selene (C1) commitments Layer 3 (Root) : Selene (C1) tree root
The full output set is committed into a Helios/Selene curve tree. Each leaf encodes an output tuple (O, I, C) as Selene curve points. Interior nodes alternate between Helios and Selene curves, enabling efficient recursive proof composition.
Input 0 — Membership Proof
| Key Image (Nullifier) | e7df951acc73504a9f8036aaccee5d53a5d0186aeae81650e34c941579384107 |
| C̃ (Pseudo-output) | c04551ff8f2b4e8fb9a314b031a77e31877bbb11b6a547423ebcbf239157a928 |
| Pseudo-out (Balance) | 320c70ac4ca33bed73c85de4eed786b68197fdca6dd3a9a7c9702b3902ecaf77 |
Nullifier: The key image
KI = x · Hp(O) is a deterministic, unlinkable nullifier. It prevents double-spending without revealing which output is being spent.
Spend-Auth & Linkability (SAL) Proof
ÕRerandomized one-time key
ĨRerandomized linking tag
RRerandomization scalar
C̃Rerandomized Pedersen commitment
The SAL proof demonstrates knowledge of the secret spend key, correct key image formation, and that the balance equation holds: Σ pseudo-outs = Σ output commitments + fee.
Verification Pipeline
1Deserialize FCMP++ proof from transaction
2Extract tree root (Selene (C1)), layers, key images
3Reconstruct signable hash from tx prefix
4Verify Generalized Bulletproofs+ arithmetic circuit
5Verify Helios/Selene curve tree membership (per input)
6Verify SAL proof (spend authorization + linkability)
7Check key image uniqueness (double-spend prevention)
✓Consensus acceptance
Privacy Guarantees
Anonymity SetEntire chain
Sender PrivacyHidden among all outputs
Amount PrivacyPedersen + Bulletproofs+
Receiver PrivacyStealth addresses
Double-SpendDeterministic nullifiers
Curve CycleHelios (C2) ↔ Selene (C1)