SAM Amplifier Construct Data
Network-dimension factor data feed derived from ChinaScope's foundational SAM. Daily refresh, S3 + signed-URL API.
Specifications
Delivery format and the operational guarantees behind it.
- Format
- Apache Parquet · Snappy compressed
- Refresh
- Daily · T+1 by 07:00 SGT
- SLA
- 99.5% · T+1 18:00 SGT fallback
- Universe
- A-shares · SH + SZ + KC + CYB
- History
- 2016-01-04 → today (10.4 years)
- Dimension
- Network
The Data Itself
Live sample rows, every field's meaning, and the integrity record — all computed from the served data, with the reference documentation inside the Dictionary tab.
Every field, with its type and meaning · methodology product-v1.0.
| Field | Type | Description |
|---|---|---|
| trade_date | date | Shanghai trading day |
| focal_ts | string | focal listco ticker |
| relation_type* | string | peer | upstream | downstreampeerupstreamdownstream |
| counterparty_ts | string | counterparty listco ticker |
| weight* | double · revenue-share fraction (0,1] | revenue-share weight (6dp) 6-decimal precision |
| source_basis | string | derivation basissam_product_mixsupply_chain_v4 |
| source_rpt_date | date | PIT: source_rpt_date + lag <= trade_date PIT: source_rpt_date + lag_days (default 30) <= trade_date — look-ahead structurally impossible |
| source_publish_date* | date | when the governing filing became public (Date 3) max over the edge's two parties — the edge legally exists only once BOTH inputs are public |
| eff_date* | date | date the edge is admitted into the dataset (Date 4 = source_publish_date + PIT buffer) STRICT no-look-ahead audit: eff_date <= trade_date holds on every served row |
Frequently Asked Questions
- When is each day's data available?
- Data for trade day T is published by 07:00 Asia/Shanghai on T+1, contingent on ChinaScope's upstream delivery. If upstream runs late, fallback delivery is T+1 18:00 SGT.
- What happens if ChinaScope is delayed?
- The API's manifest endpoint exposes a field (green/yellow/red). When red, calls for the current day return 404 with an header and ETA. Buyers can poll the manifest until status flips green.
- How do I read the data?
- Via signed S3 URLs issued by api.numinor.io/construct-data/v1. Bearer-token authenticated; one API key per subscription, rotatable from your account page.
- Can I cancel anytime?
- Yes — Stripe Customer Portal access from your account page. Cancellations take effect at the end of the current billing period; no refunds for unused time per Tom's 2026-05-28 policy.
For more — fields, S3 paths, conventions, onboarding — read the full Data Dictionary.