Transaction Details
| TX Hash | dfc6a0c7534afcdbab8f40f5fe7c383c5a156f2b8ef8dbda7c39d2d425463239 |
| Block | 113,930 |
| Timestamp | Tue, 05 May 2026 01:10:07 GMT (6h ago) |
| Confirmations | 389 |
| 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) | 1ff29cfc6a1496e067153a22d4fe9e81bf6722f89e260d89164a830fa4a3726f |
| Pedersen Commitment (C) | 6002a38bbab00a2b4a908875e64a9ac8f62a433976b0808b6144a9716b0bbbc7 |
| View Tag | 0e |
| Asset | ✓ USDm |
| Amount | Encrypted (Pedersen + Bulletproofs+) |
| Output #1 | |
| One-Time Key (O) | d6ff479e30b435fa85b4a09948bd15bb01e47db023d492b4ef9bfd5872474e93 |
| Pedersen Commitment (C) | e7f36d5b6f3df2dc262334a43f3a4afe1ea470719a6bf0ad65aae30e4b125a98 |
| View Tag | 7f |
| 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 | 02970f21dd9517689f4f0ae6fe252ff66727cc9ab6df18d7b5f31fdd06799b34 |
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) | f055804536d11544257999d2d0eca0176f377c24ac68bce986d6dfddafed2755 |
| C̃ (Pseudo-output) | 3ab05e72bc63a5f02ce1f94d0a2fad2f9c3bcf3fda31d33f933bcf3b1d14fbe3 |
| Pseudo-out (Balance) | c5a521963cdb538b6731bc9b259a0efbc3836533886d00a1d280b693d7bea593 |
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) | 40cadabc185bbf48ffe8786708e0c9c17aadf5190fce69b35d7ff6f05f20b160 |
| C̃ (Pseudo-output) | 1a8ee3bf62f5ef6f9ecb224c13939af825f6f141e3c4d84950e26951bf54696e |
| Pseudo-out (Balance) | f4d2e112f3d46385f74e5a02c453b827be32277323e1a7fedf87216e0bee690b |
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)