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UDS Spans + Receipts

Naming clarification. "UDS" here = Unified Decision Span, an OTel-compatible span schema. Not affiliated with Defense Unicorns' UDS (Unicorn Delivery Service).

A corpus of 100 synthetic OpenTelemetry spans and 50 DSSE-signed governance receipts produced by the uds-mesh component. All records are synthetic ("synthetic": true on every row) — no production telemetry included.

Field	Value
Records	100 spans + 50 receipts
Format	JSONL
License	CC-BY-4.0
Synthetic flag	`"synthetic": true` on all rows
OTel spec	W3C TraceContext (w3.org/TR/trace-context)
Receipt schema	DSSE (slsa.dev/dsse)

Schema — spans (`spans_sample.jsonl`)

Field	Type	Description
`trace_id`	string	W3C 32-hex trace ID
`span_id`	string	W3C 16-hex span ID
`component`	string	e.g. `a11oy`, `amaru`, `rosie`
`kind`	string	`GOVERNANCE` \| `AUDIT` \| `POLICY`
`timestamp_us`	int	microseconds since epoch
`synthetic`	bool	always `true`
`lambda_score`	float	Λ-axis score [0,1]

Schema — receipts (`receipts_sample.jsonl`)

Field	Type	Description
`envelope`	object	DSSE envelope (payloadType + payload + signatures)
`chain_hash`	string	SHA-256 of previous receipt
`component`	string	emitting component
`mocked`	bool	always `false` — real DSSE crypto
`synthetic`	bool	always `true` — synthetic data

Provenance

Generated by uds-mesh CI from github.com/szl-holdings/uds-mesh. Verified: 269 uds-mesh tests GREEN (2026-05-29).

git clone https://github.com/szl-holdings/uds-mesh
cd uds-mesh && pnpm install && pnpm test

Cross-links

Live demo: SZLHOLDINGS/vsp-otel-emitter
MCP server: SZLHOLDINGS/mcp-receipts-server
Source: github.com/szl-holdings/uds-mesh
Org card: SZLHOLDINGS/SZLHOLDINGS

Citation (BibTeX)

@misc{lutar2026ouroboros,
  title  = {Ouroboros: Formal Verification of Agentic AI Governance — v18.0},
  author = {Lutar, Stephen P.},
  year   = {2026},
  doi    = {10.5281/zenodo.20434276},
  url    = {https://doi.org/10.5281/zenodo.20434276}
}