Transaction Details
| TX Hash | f02bbb3e6ad5f11351246deb4880cb7b840e8c673f923c826d36c3f0d3a8a0af |
| Block | 116,229 |
| Timestamp | Wed, 06 May 2026 19:19:39 GMT (3d ago) |
| Confirmations | 2,379 |
| 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) | 0e5f5e0879a1c932becb11123b97a3f1af4e08a24e898eb7f9161176e0fe2d04 |
| Pedersen Commitment (C) | ed3c6865cd747eab764cf6ab8898f025487c275ed66266c1be371f95f9334d61 |
| View Tag | 5a |
| Asset | ✓ USDm |
| Amount | Encrypted (Pedersen + Bulletproofs+) |
| Output #1 | |
| One-Time Key (O) | 286546eb16334c83ed14d7bc01c33a73642e97e2307ea4cbe14661491b63dde7 |
| Pedersen Commitment (C) | a138500fcfae422bb424c2eec6d5fa1a81f32a5dd6f7bffb3ff8839b27c16266 |
| View Tag | 0f |
| 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 | 831acbf6bb0ff36a0bde4497645ccb425be982931921e375d84a89fa84ac5a4a |
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) | 0e188066c808f049bd2f898f7ed2fe0afea5131170783cbd505154d833066941 |
| C̃ (Pseudo-output) | 7ea387ccb73ec77c85fbfd05d5b31ad5627365074eed2d28c78ff146a895ce81 |
| Pseudo-out (Balance) | 0f0175e60c186bb852bc5f78dc5e22c96f14f2d29f49730173490ce9643bcf1c |
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)