Transaction Details
| TX Hash | 88904011984d9da01f75ae2b55c2b2ce75c32b1e822fdcf8e0c4e50c8ff99d83 |
| Block | 116,264 |
| Timestamp | Wed, 06 May 2026 21:00:25 GMT (3d ago) |
| Confirmations | 2,409 |
| 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) | 5170b4b3f4e2af946825ee423f39149637c87940a6c9b1cad409cf452f660261 |
| Pedersen Commitment (C) | c5ba3c25a3643d346fa8c00e79113ac3fbd024d3d5b5e3de70b29d4766407c8c |
| View Tag | e2 |
| Asset | ✓ USDm |
| Amount | Encrypted (Pedersen + Bulletproofs+) |
| Output #1 | |
| One-Time Key (O) | e8f5ae60010f38dbb50864ae1ebe6963a6cc743103de30ece7b8ae49a96abf40 |
| Pedersen Commitment (C) | 9f5d2fb8d3cb9907afd93a8591ed0153a254c3becc4ed2b8074b77f355f2d57f |
| View Tag | 29 |
| 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 | 7cc59285182998a7f23e514530cd8b9c8c90f04824f231e97b9c7b1faf2ca1bb |
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) | f260952cef8243339f17c8c82cc3c2b805ae84b802af967278a87695d3fc1bd1 |
| C̃ (Pseudo-output) | 626c03a2d50dd9bb41e1fa9f938ec8a342570af69ae1dceae2503ddebe7e97e3 |
| Pseudo-out (Balance) | c49aa70b2f0cbcf003835e63bfe1caeb624dbe7df7eb522ef49fdef918f3ed02 |
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)