FTB-C000052 / Implementation concept

Series Identity

Series identity is the complete key and semantic contract that states what a sequence of observations represents.

Also known astime-series identityseries key

Intermediate 6 linked topicsPublished

Definitions

In plain terms

A column named close is not enough. You also need the instrument, venue or source, currency, adjustment basis, interval, calendar, and field meaning.

Technical

A series key should encode or reference all dimensions whose change would alter comparability, including instrument, field, source, frequency, unit, adjustment, and valid-time policy.

Scope

The dimensions are dataset-specific; the glossary does not prescribe one universal composite key.

Examples

  • A governed dataset records series identity explicitly instead of inferring it from an ambiguous field.

Common misconceptions

  • Series Identity does not have one universal meaning without its stated market, source, and time context.

Concept relationships

Prerequisites

Related

Required by

Where this concept is used

Tutorials planned

These catalogued topics use this concept, but their complete build has not shipped yet.

  • D01-F01-A01 Important
  • D01-F04-A03 Prerequisite
  • D01-F04-A04 Prerequisite
  • D02-F03-A01 Important
  • D02-F03-A02 Important
  • D02-F04-A01 Important

Evidence and governance

  1. Fintech Builder Glossary Definition Contract The Fintech Builder · internal governed contract

    Supports: preferred label, short definition, technical definition

    Limits: Defines governed platform behavior rather than claiming these policies are universally prescribed by external McClellan methodology.

Reviewed by
Last reviewed
2026-07-26
Next review
2027-07-26
Record status
published
Written by

Fintech engineer building market-data and financial systems, and the author of every article, glossary record, and reference implementation on The Fintech Builder.