Transaction Details
| TX Hash | 733104fd35079998cab3286fda75e8a0164968cae61f32e5eba0ec8964126de0 |
| Block | 113,854 |
| Timestamp | Mon, 04 May 2026 23:46:41 GMT (5h ago) |
| Confirmations | 351 |
| Fee | 0.0246826 USDm |
| Size | N/A |
| Weight | N/A |
| Version | 9 |
Transaction Type
| Type | TRANSFER |
Inputs & Outputs
| Inputs | 2 |
| 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) | 08735fc474200c0cee4fc5e836e06b351e4af4590170bc68c13be6f67a44f655 |
| Pedersen Commitment (C) | 5acc182984483c1bb00767c27b501ce0ea772821063618d30b147532d726d0cf |
| View Tag | f9 |
| Asset | ✓ USDm |
| Amount | Encrypted (Pedersen + Bulletproofs+) |
| Output #1 | |
| One-Time Key (O) | deb5e5dde67e2bdc751007ebd6b4f447efd99f917e63222e1941a1e5a7108781 |
| Pedersen Commitment (C) | 77ea00b742b5eea6484fd7f0f010d88e8a3e1405937eb8f9d3ccfbea1fcdb7bc |
| View Tag | 02 |
| 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 | 2 |
| Proof Size | 6,080 bytes |
| Curve Tree | Helios (C2) dual-curve architecture |
| Tree Layers | 4 |
| Tree Root | 1921d94ae2848c2195c346d5480494748883b97f31ce81a661bd2300cd430394 |
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) | c1625abe96b31d405d01f0e4fea3672537c8327accd0503623e8078d8cd54a02 |
| C̃ (Pseudo-output) | 10b65e19f78ff3034e470a9d27042984f9b98fcdb166110ab72cbd82a0d78e67 |
| Pseudo-out (Balance) | 83ef17d36ea268fe06ebbc5ebe63d9b7a9014b2089ea59eda397718ca120fc3c |
Nullifier: The key image
KI = x · Hp(O) is a deterministic, unlinkable nullifier. It prevents double-spending without revealing which output is being spent.
Input 1 — Membership Proof
| Key Image (Nullifier) | 45582ba81cd126243942f553d6e88398c0458a360fcce32fff3ff88d75b7fea7 |
| C̃ (Pseudo-output) | daa14e5d74c835508daa63747b6f9506d357ef9935b81edf95f6bf63b9b2fdc2 |
| Pseudo-out (Balance) | 7b879ac61efb49c7cf60c57ef4464dfb83ab4779a8da6aaf22e730bd5097820b |
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)