Transaction Details
| TX Hash | 2cc239c8768a330697e256f78dd643fbba5060ec184e1b2763ddfc4b1870074c |
| Block | 116,267 |
| Timestamp | Wed, 06 May 2026 21:03:09 GMT (3d ago) |
| Confirmations | 2,407 |
| 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) | 664d428db7b6d2cf4f52b8572d7d2ab35c8999300673dd64afe141645ccc5b2c |
| Pedersen Commitment (C) | 9e56670d2e58a644c44b4d0afa74f30e75e2044473893fef6d5307f445663bd4 |
| View Tag | 8f |
| Asset | ✓ USDm |
| Amount | Encrypted (Pedersen + Bulletproofs+) |
| Output #1 | |
| One-Time Key (O) | 092bda38a1579878c7d16008bede044f9686ec9b877420253d72fd154e5a414d |
| Pedersen Commitment (C) | f6a1d275ef69e217d5007a7e666060774be63ec2acb45d1d0ff08e438634d6d8 |
| View Tag | a9 |
| 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 | a670dc3fc302cd355427a2c6a6b3717ea47adb2aaf4478b70353ef75692adc26 |
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) | ec01d328a4261795ade6a55bf5ecf9204f021151a60512430165b2eae6321a0c |
| C̃ (Pseudo-output) | a586579fc1b035b0577884fc459d5ca1a56f3010351eb7a6bc8bff3ca540cfe4 |
| Pseudo-out (Balance) | 5ed62184b164b6b654705d4e605144c6c3ddbe5f6865770c275e58e7e8ca5698 |
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)