Transaction Details
| TX Hash | 345b9787536e4b6ac89446a9c0aa6143dde2d3568a2c700b8f54f40c56fa84a9 |
| Block | 116,211 |
| Timestamp | Wed, 06 May 2026 18:38:59 GMT (3d ago) |
| Confirmations | 2,469 |
| 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) | 586438cd3eadc91f7b280162582a9399e30b29acd21dbc98bb031e8f7a06d318 |
| Pedersen Commitment (C) | fd348ef62593229b555dc7b479fa5ece52f52eb2d978bb93a559e3ac52510c40 |
| View Tag | 7f |
| Asset | ✓ USDm |
| Amount | Encrypted (Pedersen + Bulletproofs+) |
| Output #1 | |
| One-Time Key (O) | e8486645a717b6bf71163eefb27af556bdf10540fcd2ce6a6cc7244270e9b58d |
| Pedersen Commitment (C) | b89a7226513ae44120df425ccbfc514cab0f1711738610393c44610537c6cb3e |
| View Tag | 1d |
| 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 | cca2b492f8f1c298ec275ca7b24d70a76e85f69cad385e2b75bb70e65a32d6b9 |
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) | 9caa6242f3f3e0b4b37a510cb2cd779daed811ab8aa08af57cefe1073751ebd4 |
| C̃ (Pseudo-output) | 235f92e7bba78753471d1ba68d0559ecbe2bdc24f4e5899f7eef65a558e070f4 |
| Pseudo-out (Balance) | f41334df5eb3438f78a0a0ce7db6ef064614ae44c13e65eddead858f911a2bc5 |
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)