Transaction Details
| TX Hash | d55275e3bb549117cc6db73b28dad7f0023e5ea0c4432b5b655e84e1bc43bbf6 |
| Block | 115,624 |
| Timestamp | Wed, 06 May 2026 05:10:44 GMT (2d ago) |
| Confirmations | 1,868 |
| 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) | 4913dfd7c49cb87cb823388a04865a13b7ef0c4898165517d35bfb56145a5402 |
| Pedersen Commitment (C) | e90ea76f9fc22d5a73199135edafa29e7ab3827e4440348fb4ce25de3a8fe935 |
| View Tag | 4b |
| Asset | ✓ USDm |
| Amount | Encrypted (Pedersen + Bulletproofs+) |
| Output #1 | |
| One-Time Key (O) | da78776307e55ccf66d6c9ad41f1acbe9d292f8f857fbea88a5eea54a1ef8853 |
| Pedersen Commitment (C) | 96da62209d1fb186983f74b0b854c6217b0e22ba7316ae248b6ad395f638c751 |
| 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 | 2 |
| Proof Size | 6,080 bytes |
| Curve Tree | Helios (C2) dual-curve architecture |
| Tree Layers | 4 |
| Tree Root | 23197ad762d9dbdc9d13b560483378fb65d4560d75f3691fdc21f20439d2f0ea |
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) | b04c29dec8d7a736b760024dabb132b561680b0e1b47ca046a20a3a8ba00da42 |
| C̃ (Pseudo-output) | fc7343ff2e47f05f41268a5b603c0ae7b90d2ffff2fad856eb9f91af441e293f |
| Pseudo-out (Balance) | a76a96365274755b7134fb6f49d3d210d34b939bb16fad2a23d220aa45b2c728 |
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) | 8acf597430491a583efb2cd242d70358a76c0bae384fdcc56e1b28b4282ab20a |
| C̃ (Pseudo-output) | 8436740beaa4acbabd6821a0a240d960cce58bce66891f19eea71d8189b41bc1 |
| Pseudo-out (Balance) | b1cc87681605e1d7339cd84da7f71f6bc86abd09528955ebb70dfb380da86601 |
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)