Transaction Details
| TX Hash | 26691c766ee5827be931735100053d9dfd074e1cc6c05294e78f957642c3286d |
| Block | 116,298 |
| Timestamp | Wed, 06 May 2026 22:53:04 GMT (3d ago) |
| Confirmations | 2,625 |
| 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) | db8f4ca551bc89127fa337fb0d007a750d99aa0bbd1654898a74111a6ecf4456 |
| Pedersen Commitment (C) | aa8c76ec9f2915473c44fec6e48fe954011c75775bc3e1114fe99e5dc6b28745 |
| View Tag | cf |
| Asset | ✓ USDm |
| Amount | Encrypted (Pedersen + Bulletproofs+) |
| Output #1 | |
| One-Time Key (O) | 06431de63a472bfc93c4e680ba549f483774b25a8f2905d69b353c1f09c0a4b3 |
| Pedersen Commitment (C) | 0bca5c9c5f0b794366b9beb3be3211ecc904a92fbf6179b7c69d7b4f53e44cf5 |
| View Tag | 3d |
| 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 | fb560d028de9e3d3429e045f45ae6b02c81949a911e80ac70ed0798683b70c63 |
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) | 0074ad916f71b65cf961ce361d6eb6d970170b6629f0bdd81a277d57220c172c |
| C̃ (Pseudo-output) | 5b9cc5e6a9ed4e84b6015ca4277843082c6e0687fde5802c851d6044b5dde40a |
| Pseudo-out (Balance) | 82405373d89e513456ab81b3b7167dfda2def214444a6726ec97ec2acd7dadc1 |
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)