Transaction Details
| TX Hash | 6828e762cc3284258191923f3337c769f607c2a297e274bc07f0ce3aa35f48db |
| Block | 113,856 |
| Timestamp | Mon, 04 May 2026 23:53:37 GMT (5h ago) |
| Confirmations | 350 |
| 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) | 6e470cc1e22ede79600713bcace196d00ab8aa24ad0e1a50945037b47113abdf |
| Pedersen Commitment (C) | 8ae4d95c5aea2bc743d470336429e7503bf9f46099851a474333d464c0afba16 |
| View Tag | 9a |
| Asset | ✓ USDm |
| Amount | Encrypted (Pedersen + Bulletproofs+) |
| Output #1 | |
| One-Time Key (O) | d5ffe3814380375a834692b986bce9e5595fc20308593b10dc0dd0728c5e8319 |
| Pedersen Commitment (C) | a2d2ffb80aa02d30b9b5633c17e417e3eb8a1efb78dbe456bb6d848df15a4fb0 |
| View Tag | a8 |
| 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 | 32e6b119e9c0d37bb357ea12c7cf9bf7b2612fd2c73ab1a0bad0c922828b39b4 |
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) | e6cf7ead17920492a8836bd625b1b978a509cd8c3d6f0119339f9248e0269925 |
| C̃ (Pseudo-output) | cba80be9b6efa035fb39a874937e6ab75690fe8cd0f0b990386433ab54652cf5 |
| Pseudo-out (Balance) | 8be55f2ef0dee10d21d01f5f8bf0f546b97324735a123a7585cf4e06d92a4f55 |
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) | ad880a081e5c03686f45af788863f6c9ecae12363035d25a908fb7770132bbb1 |
| C̃ (Pseudo-output) | 391f85583af73966420e6d4ca4bec49e2625c3848b17e9c9c38ea85d3850910d |
| Pseudo-out (Balance) | c6a03149e78cfd1d4ae345e38e6052c261e08f30db11c2e6dc22927b80f2dee4 |
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)