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Technical Schema Specification // TFIN-v1

TFIN ID Encoding Spec & Validation Regex

Regular Expression syntax and JSON Schema blueprints for tokenized debt securities under the DCM GTSR protocol.

[REGEX PATTERN VALIDATION]
/^TFIN-[A-Z]{4}-[A-Z]{3}-[0-9]{4}-[0-9]{4}$/ *Note: Case-sensitive. Segment 1 must match the TFIC asset classification rules. Segment 2 maps to verified ledger keys. Segment 3 maps to the ISO issuance year.
View TFINs in the GTSR Registry
99.9%CONF
Registry Grade L3
DCM GTSR Protocol v2.1 · Audit: ---
Live Validated
Global Directory (GTSR)
TFIN-ID Identity
Audit Identity
Last Full AuditReal-time
Hash VerifyPassed ✓
Schema VersionGTDS v2.1
Cross-Chain Sync
Primary NodeParis-1 (EU)
Registry SyncValidated
Uptime 30d99.99%
Standards Compliance
GTSR Certifiedv3.2
TFIN IntegrityVerified ✓
ISO 27001Active ✓

Architecture Specification

The TFIN ID follows a deterministic structure that encodes primary asset characteristics directly within the identifier. This human-readable yet machine-parseable format ensures interoperability across the institutional 5-layer stack.

TFIN - DEBT - ETH - 2026 - 0001
Asset Class 4-letter code mapping to the institutional TFIC classification standard (DEBT, EQTY, FUND, DRVT).
Ledger Type 3-letter code identifying the underlying DLT infrastructure (Public: ETH, POL | Private: HYP, CRD).
Institutional Registry All issued TFINs are recorded in the Global Tokenized Securities Registry (GTSR) for cross-chain traceability.
JSON Schema Definition (tfin-schema.json) 
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "TokenizedFinancialInstrumentNumber",
  "type": "object",
  "properties": {
    "tfinId": {
      "type": "string",
      "pattern": "^TFIN-[A-Z]{4}-[A-Z]{3}-[0-9]{4}-[0-9]{4}$"
    },
    "classification": {
      "type": "string",
      "enum": ["DEBT", "EQTY", "FUND", "STRU"]
    },
    "ledger": {
      "type": "string",
      "enum": ["ETH", "POL", "STR", "HYP"]
    }
  },
  "required": ["tfinId", "classification", "ledger"]
}
Technical Disclaimer: The regex syntax is optimized for ECMAScript RegExp engines. Certain DLT environments or SQL-based indexing engines might require escape parameter adjustments (e.g. omitting the boundary markers ^ and $ in specific PostgreSQL schemas). Schema synchronization with offline ledgers is subject to syncing window latencies.

Standard Reference Mappings

Asset Class (TFIC)

CodeClassification
DEBTFixed Income / Smart Bonds
EQTYTokenized Equity / RWA
FUNDTokenized Funds / ETFs
STRUProgrammable Structured Products

Ledger Infrastructure

CodeLedger Protocol
ETHEthereum Mainnet (L1)
POLPolygon CDK (L2 AppChain)
STRStellar Asset Hub
HYPHyperledger Besu (Private)
How to cite this standard
DCM Core Institute (2026). "TFIN ID: Tokenized Financial Instrument Number Specification". Institutional Standards - Technical Series. Available at: dcmcore.com/en/standards/tfin-id.html
@techreport{dcmcore2026tfin,
  author = {DCM Core Institute},
  title = {TFIN ID Standard Specification},
  institution = {DCM Core Institute},
  year = {2026},
  url = {https://dcmcore.com/en/standards/tfin-id.html}
}