Transaction Details
| TX Hash | 627f445e5c2c4811523c468e0a5c50e7d8a02176075c43ac453fc6228e4de935 |
| Block | 116,288 |
| Timestamp | Wed, 06 May 2026 22:13:06 GMT (3d ago) |
| Confirmations | 2,506 |
| 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) | ad2375ceb50a491b703b4c5c1e5270a51c445d829b3fcaf6ba713c979a0fe1a1 |
| Pedersen Commitment (C) | be6fde4e49c1b770b9396d9e5ba888d748e50030eb119bb8b165917332b99431 |
| View Tag | 47 |
| Asset | ✓ USDm |
| Amount | Encrypted (Pedersen + Bulletproofs+) |
| Output #1 | |
| One-Time Key (O) | 0b4b064c2dc7824c7c129809c72c524da7a89a4cdbe9ae57b84ed47491843fd1 |
| Pedersen Commitment (C) | da2ea4cced250054c650f6b96b543d33e982efdec5b92f9cea7a04f821716bbc |
| View Tag | e9 |
| 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 | 27604826479e22a61bbd7202af09cb0abecd48087de73f17c88dc3863539e852 |
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) | dc972c26f8cff28cc67ed7b03c54e927fe24320a8be03ce1212cbab630d403a1 |
| C̃ (Pseudo-output) | f559b222611909bc11011b180bccc4bf2c4261ab96e40eeeff0d0a901f0941cc |
| Pseudo-out (Balance) | 507a72945694b1fe3d09c55821d874fda1c2851283127a8fc87919d346521898 |
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)