Transaction Details
| TX Hash | 7f610c2a1937bfefb29d353b56b4a106db22fca02edb2f8cba0f42a7f0a1ed02 |
| Block | 113,617 |
| Timestamp | Mon, 04 May 2026 19:35:35 GMT (4h ago) |
| Confirmations | 238 |
| 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) | 0e40ef0a5b5fabe44b60239e2272cea8e9e5639f877656aec919113f1bc3b627 |
| Pedersen Commitment (C) | 09b00285a5df8a9967c075265afd077cd2f836b829fa282047f0be8a1822b46a |
| View Tag | 74 |
| Asset | ✓ USDm |
| Amount | Encrypted (Pedersen + Bulletproofs+) |
| Output #1 | |
| One-Time Key (O) | 3813383cf8022b23f215f2d382848e80efed611f0c96f86611b10343f354e9b9 |
| Pedersen Commitment (C) | 4991b38782fbde3cd6ed6bb45773ab8c73f58839490452a91cbbbcdfa8a46897 |
| View Tag | 5d |
| 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 | fd30a810786dc2cd39a44e521efd432a7cd8c3b24c5108e7624a50a78be54408 |
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) | 1b9f4738190ca2a9bd772573171855eb298f2d3269941c1ac930ad9dcd536142 |
| C̃ (Pseudo-output) | 12ee7d8614ae8d799820e87fb5b96d1d89880b666c990144924d2e9d9b60d791 |
| Pseudo-out (Balance) | 3859b84fda0a549bd2cda141694bef75f6f2ea556a1b4f3aedbd64f41f3d5a34 |
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)