Transaction Details
| TX Hash | 04f868ea2b8def06c3b2374836d535b7582e3626e103551d61f37f78a1d7761d |
| Block | 116,307 |
| Timestamp | Wed, 06 May 2026 23:20:22 GMT (3d ago) |
| Confirmations | 3,042 |
| 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) | dd255f234382498158b0d622c9dfe9661180d1365e5938dfbc99b3997750243a |
| Pedersen Commitment (C) | f723002331604d22544c5c0ace0b228633b13147cb370860b1b399e41acfb37a |
| View Tag | 7d |
| Asset | ✓ USDm |
| Amount | Encrypted (Pedersen + Bulletproofs+) |
| Output #1 | |
| One-Time Key (O) | c5d1d0eade289eb6d55c329b4bd58b2d9ad39181900d56ca3b66ecd0aece8d49 |
| Pedersen Commitment (C) | 86ad060cdd724a94f1075063bc29fd65f1623a791191b28b60e9ffb5fef8e8d9 |
| View Tag | 90 |
| 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 | f3b5ddb0cfac6a45f0674157b308c6e31238ea4710ea3eed03a266baab6cb63a |
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) | 1d203e44423a7692fcc97e342b6030234c6bab25cb2646a32ac3daa246c7eb3e |
| C̃ (Pseudo-output) | e14b77b8f98fcf2e11bc903e97c7b2c8361d7d6351c0ebd83a70eab9c1042f07 |
| Pseudo-out (Balance) | bb03e60f20229c3dc9adf1a18c91ccee136ae8fdb71e6b48e5da9c4933e04fb0 |
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)