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WLES — Workforce Ledger Evidentiary Standard

WLES v1.0 Specification

The Workforce Ledger Evidentiary Standard (WLES) v1.0 is the canonical technical specification maintained by FLOSMOSIS PTY LTD (ACN 697 323 925) as the Foundation Entity per the WLES Foundation Constitution (effective 27 April 2026, governed by Australian Capital Territory law). This page is the canonical home of the v1.0 specification on flosmosis.com per Constitution clause 7.3 (open standard).

What WLES specifies

WLES specifies the structure, sealing, chaining and verification of workforce labour-event records. The standard defines:

  • a canonical-JSON event schema for labour-event records;
  • SHA-256 chain construction with prior-record-hash linking;
  • a stable receipt format for human-facing presentation;
  • conformance requirements for WLES-compliant systems.

Per Constitution clause 6 (Core Principles), records produced under WLES are sovereign to the Worker, portable across employers and jurisdictions, and tamper-evident through cryptographic seal.

Record structure

A WLES record represents a single labour event — for example, a shift worked, a competency verified, or a compliance milestone reached — expressed as a structured JSON object with a defined schema, a cryptographic seal, and a chain reference linking it to the prior record in the worker’s history.

Cryptographic seal

Each WLES record is sealed using SHA-256 over a canonical JSON serialisation of the record content. The seal provides tamper-evidence: any alteration to a sealed record produces a different seal, which a verifier can detect by recomputing the seal over the present record content and comparing.

Chain integrity

WLES records are linked into chains via a prior-record-hash field. Each new record references the seal of the prior record in the same chain. This linkage provides immutability of the record sequence: alteration of any prior record breaks the chain at that point and is detectable by the verifier.

Receipt format

For human-facing presentation, each WLES record produces a receipt with a stable shift identifier, a verification path the worker can use to prove the record’s authenticity, and a human-readable summary of the underlying labour event.

Worker portability

Per Constitution clause 6 (Core Principles), WLES records are sovereign to the Worker and portable across employers, platforms and jurisdictions. The specification establishes the technical mechanism for portability through the open record structure and the cryptographic seal that allows any verifier to confirm record authenticity without dependency on the original issuer’s systems.

Conformance

Conformance with WLES is established by implementation of this specification. Per Constitution clause 7.3, the Foundation Entity is committed to maintaining the WLES as an open standard and will not use intellectual property rights to unreasonably restrict access to or implementation of the WLES. Per Constitution clauses 3.3(c), 6, and 7, the Foundation Entity maintains the canonical specification.

Per Constitution clause 2.1(d), the Foundation Entity will establish accreditation and certification processes for WLES compliance.

Reference implementation

FLOSTRUCTION, also published by FLOSMOSIS PTY LTD, is the first WLES-conformant system in production use and is the reference implementation. See FLOSTRUCTION documentation for an operational view of WLES record production, sealing, chaining, and verification.

Engage with the standard

Contact

For technical questions about the specification, conformance, or implementation, contact standards@flosmosis.com.