Transaction Details
| TX Hash | 429561325737f37eabe8ca4bce7e42949cd83a97cce07a71dbd6ae692a1d08f8 |
| Block | 113,932 |
| Timestamp | Tue, 05 May 2026 01:12:47 GMT (6h ago) |
| Confirmations | 388 |
| Fee | 0.01908476 USDm |
| Size | N/A |
| Weight | N/A |
| Version | 9 |
Transaction Type
| Type | TRANSFER |
Inputs & Outputs
| Inputs | 1 |
| Outputs | 2 |
| Privacy Proof | FCMP++ (type 11 — Full-Chain Membership Proof over entire UTXO set; decoy rings are not used) |
Outputs
| Output #0 | |
| One-Time Key (O) | 79af751811920133fe987c135aeafdd7bd6f2db6cd42d5612e5db8dfa438cd47 |
| Pedersen Commitment (C) | 30dc4c5f879717c46bae6fc99d3ec4da93c029f7f3eb7dc21b380df1f81f4268 |
| View Tag | d8 |
| Asset | ✓ USDm |
| Amount | Encrypted (Pedersen + Bulletproofs+) |
| Output #1 | |
| One-Time Key (O) | 7ab972517fb8efa9cb117b0f065d9e04e8eb12b220a1db6e8c3716b96e05acb7 |
| Pedersen Commitment (C) | 294d9860cc62a6b8e764063ff438712e9bda00b6be49caddcbaf39b1ce051586 |
| View Tag | 15 |
| Asset | ✓ USDm |
| Amount | Encrypted (Pedersen + Bulletproofs+) |
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 | 4,544 bytes |
| Curve Tree | Helios (C2) dual-curve architecture |
| Tree Layers | 4 |
| Tree Root | db31f62a0717422e2c0375d9d32827cb84562a7f7b86e3d2087123e22cb360ad |
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 4 (Root) : Helios (C2) 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) | 0930bfa2e6cd66263c8260296dd5d268ccc4965f9e97b1c9eb55ecaf03821e9d |
| C̃ (Pseudo-output) | f1cca9d4fd5b484969bedec16b11587cbe2f46bc7c0ee79c75d73c2d57bf44f3 |
| Pseudo-out (Balance) | b4d1a941b7dbcc7e9d185dcb0a7093024d28474d7cd76dd2a682e22ce82928e8 |
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 (Helios (C2)), 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)