Transaction Details
| TX Hash | aee8b4c52507fb0462f71c1878d9360c63fd042597ce980f81f774bdc7426f38 |
| Block | 116,228 |
| Timestamp | Wed, 06 May 2026 19:17:06 GMT (3d ago) |
| Confirmations | 2,384 |
| 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) | a44e8d3fd8a77ad3301bc2526c647cf9f71953c2e4333864a01e97769d1f2429 |
| Pedersen Commitment (C) | 6951867804e3b214488ed367b0f1babed6ef411a677bf37320fbf652e57e67ce |
| View Tag | df |
| Asset | ✓ USDm |
| Amount | Encrypted (Pedersen + Bulletproofs+) |
| Output #1 | |
| One-Time Key (O) | cd78bd1011559f0a4f8c95e2bfdfa06ee39a348f5f2fab9363d0be242e09f11b |
| Pedersen Commitment (C) | d414ba2f28a2e6fa4bf1ba9b495c7b3ca89b77de55bad6fb2efe0c0ea3253ecd |
| View Tag | 9a |
| 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 | 1193e9ab6f66369395243b560ab5cff89bd0280bdf4fec21ff1c9c41994953ff |
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) | a9945a751b034c4b613d97aa5f688782b882e28694b410c1c43c2821da734a1b |
| C̃ (Pseudo-output) | fc147a0b9b5cd0aba459d0d89e84acd8ac1c92a141822d3ba9b05f6ff1e34097 |
| Pseudo-out (Balance) | 20cbeb07330912d84980db2aa2b3f8fa44b502b349dc0b6682fc90216a2975c2 |
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)