Transaction Details
| TX Hash | 6bc7d40616a6b0597342e72fa103ffaa5b3e8da3f54e1c45371f06c74eed77c7 |
| Block | 116,319 |
| Timestamp | Thu, 07 May 2026 00:04:11 GMT (3d ago) |
| Confirmations | 2,526 |
| 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) | 064d1438b05affcead34e45c9040e052dde819bc45ed0dab327370e61cd1df6c |
| Pedersen Commitment (C) | f11f93eaca3e173b5f780d8fc0e4be20a00baf8819b5aee35e675f262c3c65ee |
| View Tag | 88 |
| Asset | ✓ USDm |
| Amount | Encrypted (Pedersen + Bulletproofs+) |
| Output #1 | |
| One-Time Key (O) | 7a3d40c3c3fe56e47cb99c860db2b52e2a7a5723f64d51cd53513b3c8631fe2e |
| Pedersen Commitment (C) | f10c3a66121ae626e86946229a6027ec417e36730f82a1d90db40ed1e87772d2 |
| View Tag | 5f |
| 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 | b2ee7f19a6f928e736a1b483c04d38a0c54d47801f32e0f9f6c9f1f2d506812d |
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) | 146dce9a51a656fb9e82d00a3367af1cfdd68acfb91bc4ce0f580ce3e3f73929 |
| C̃ (Pseudo-output) | b412f7c5728406bc558b9e8972aed5d01cb4e24419d916d6e22a935a243e09b1 |
| Pseudo-out (Balance) | f26e79e4a29ef46a7efeef3f3ff91c6062be5e5abb2681313b8288e9d12641d5 |
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)