Transaction Details
| TX Hash | 3b6f5f2a2af26c0f424746261c7afae219dc1778e08a68752df7a87e4f3989aa |
| Block | 113,650 |
| Timestamp | Mon, 04 May 2026 20:14:54 GMT (15h ago) |
| Confirmations | 943 |
| 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) | 423dad5b15d3e2e95d1e0aa024d34977813d4c19950ecc920e32b8b48efde61c |
| Pedersen Commitment (C) | 7e3f653237c2b0dc69b5e576c96ecc5e9952a8925c85ed9609b4e5bbb5288157 |
| View Tag | a7 |
| Asset | ✓ USDm |
| Amount | Encrypted (Pedersen + Bulletproofs+) |
| Output #1 | |
| One-Time Key (O) | 94eab1ab7d9155042b511b32df14b503ddc91f480baf9c3969c8e0db64f3dfaf |
| Pedersen Commitment (C) | 792b931b1ecba8bf94bb7ed250818b5e28945bdab448bc4ae005e11353463832 |
| View Tag | c3 |
| 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 | 74a0cd5afbfdeb5b566ea3f7f6be9d1ae5e7ad6fcc4169942fe2240e86918188 |
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) | 84b618c26cfa04983e12c302f976b19568af2c4033d1e71f4c52bd06727deeff |
| C̃ (Pseudo-output) | 25b53c98ff5f0125f98164340e25e9098dfc2c119ed271a6c98fe2535e032165 |
| Pseudo-out (Balance) | 53e9b9855d995f1d436cb02d04f11bd50a12a9d56417e68e6ffe99ac858dcee1 |
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)