jb10231/sih26183-universal-cross-chain-model
library_name: lightgbm tags:
- cryptocurrency
- blockchain
- fraud-detection
- illicit-activity-detection
- graph-analysis
- bitcoin
- ethereum
- solana
- cybersecurity pipeline_tag: tabular-classification ---
SIH26183 Universal Cross-Chain Risk Model
A structure-based global LightGBM model for cryptocurrency transaction-flow risk triage.
Supported chains
- Bitcoin
- Ethereum
- Solana
Model architecture
Normalized blockchain transactions → directed flow graph → 12 universal structural features → StandardScaler → LightGBM → risk probability
Universal features
[ "txcount", "uniquecounterparties", "intxcount", "outtxcount", "indegree", "outdegree", "totaldegree", "degreeratio", "issource", "issink", "meansuccessoroutdegree", "meanpredecessorindegree", "pagerank", "activespan", "meaneventtime", "eventtimestd", "recentactivityage", "loginvolume", "logoutvolume", "logtotalvolume", "inoutvalueratio", "inflowconcentration", "outflowconcentration" ]
Threshold
0.45545454545454545
Important limitation
This model provides an analytical triage signal.
It does NOT independently establish:
- criminal liability
- wallet ownership
- VASP attribution
- intent
- legal guilt
Blockchain evidence and investigator review remain authoritative.
Input
The inference service expects normalized transaction relationships following the CommonTransaction structure.
Output
The service returns:
- ML probability
- threshold decision
- risk level
- risk points
- graph statistics
- per-node scores
Intended use
Investigation-support and research purposes.
