Transaction Details
| TX Hash | deb1a308e230a6ca601d600bf8c6aa9b67fd73d7c01166402650bfd76288da70 |
| Block | 116,265 |
| Timestamp | Wed, 06 May 2026 21:01:01 GMT (3d ago) |
| Confirmations | 2,411 |
| 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) | 0abcbbb6b164ea75ce00eedbbc281ef120a998220763301a1f8a9d8801eee39d |
| Pedersen Commitment (C) | 0fa217a01e49fd7b0c0c33f2175cf134b02624f2d28c949dfdb3169ec8f0eaeb |
| View Tag | 54 |
| Asset | ✓ USDm |
| Amount | Encrypted (Pedersen + Bulletproofs+) |
| Output #1 | |
| One-Time Key (O) | 5d5b1126100c1245fd2ccebf3e2c546847c5ea428fd91d1c3ad5cc9c65076100 |
| Pedersen Commitment (C) | 85a09d3d3d02ca442f7a13f6948962c2fbdc0b3819c40d52aae51c6fcbd9f4e5 |
| View Tag | 43 |
| 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 | ce0f055210e9df9da27ae5d9b9e0b813da901e1ecb801966c1d8e208efd5b663 |
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) | 856ca3a296bfcfefe98a44f783a0481959930fc99313acf692cf94b93c417461 |
| C̃ (Pseudo-output) | 173bed43a9ccc1c6172c9f7ee364a698eff991f9292167f6893238b896c11782 |
| Pseudo-out (Balance) | 005ea14bc68f046e48a85e7abc442337a5d229747fed83b028966acff6b287dd |
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)