Transaction Details
| TX Hash | 83de6bb9bf3946bdee8dcebc410dbc8b50e1ecf2a8d616e499e49da8501dd531 |
| Block | 113,853 |
| Timestamp | Mon, 04 May 2026 23:33:07 GMT (5h ago) |
| Confirmations | 346 |
| Fee | 0.0246826 USDm |
| Size | N/A |
| Weight | N/A |
| Version | 9 |
Transaction Type
| Type | TRANSFER |
Inputs & Outputs
| Inputs | 2 |
| 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) | 16a2e1acf01ae06692840110288afe36e46b8dc068710dc92731062d4a1d58a2 |
| Pedersen Commitment (C) | e36e6c62aad7817061de398cf6e344bba38b41818ce82b5572aa9491aaf497fa |
| View Tag | ee |
| Asset | ✓ USDm |
| Amount | Encrypted (Pedersen + Bulletproofs+) |
| Output #1 | |
| One-Time Key (O) | 40792c4cc924d2e9805413973343634c02a50ddf64331f059dbd4e2094d62e90 |
| Pedersen Commitment (C) | 7dc83f6130c11b452aa2cac16a9d00a50d33f4a3a4a219e7249087809635df52 |
| View Tag | 71 |
| 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 | 2 |
| Proof Size | 6,080 bytes |
| Curve Tree | Helios (C2) dual-curve architecture |
| Tree Layers | 4 |
| Tree Root | 4de38858554c65352ff63dc213d8dd097600248abe6fa66c48c2de7ecc47f539 |
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) | b34b372bb5bedb188127bcb49a93012889b328c0f520861fb3083fe0855b8150 |
| C̃ (Pseudo-output) | 94272906a83af7b4cfb235fbf20b1726fbb91c8a39be1d14ad77088dcee52949 |
| Pseudo-out (Balance) | fcf1b7a947bee59275ffc252a4e912229d15f8353cc3c580c126b490ec20ff14 |
Nullifier: The key image
KI = x · Hp(O) is a deterministic, unlinkable nullifier. It prevents double-spending without revealing which output is being spent.
Input 1 — Membership Proof
| Key Image (Nullifier) | 35d4ef60f1a26a5874747e7a133b23720a81464117e5d1d5a93dbbdd78f89762 |
| C̃ (Pseudo-output) | b98c916f31dc3613d51984e09fa310653e93136d127025decf7aede9360636a7 |
| Pseudo-out (Balance) | 9138ec57564029b874ad233aadf3fec3d69e377cc2562a30e5b7b92fe3037dbc |
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)