Evidence foundation

Workpaper Foundation

No figure without a trail

HS / 01
Workpaper Foundation
Evidence foundationStructured intake and fact records
Foundation implementation

Purpose, with substance.

The workpaper foundation supplies the record contracts later pipeline stages can build against. Validated intake and fact records retain provenance, append-only ledgers preserve the trail, and content hashes support re-verification. The documented package is a foundation, rather than a complete preparation or filing system.

  • Structured intake and fact records
  • Provenance attached to facts
  • Append-only JSONL ledgers
  • SHA-256 sealing and re-checks
A closer look

From input
to useful outcome.

Who it serves

Builders implementing a traceable tax-workpaper pipeline

What goes in

Source identities, structured facts, provenance, audit events

What comes out

Validated records and a tamper-evident evidence ledger

01

Seal the intake

Record the source identity and its content hash.

02

Attach provenance

Keep each fact tied to the supporting source and context.

03

Append the evidence

Write records through the append-only contract.

04

Re-check integrity

Compare hashes and ledger prefixes before a later stage relies on them.

Current scope & availability

Know where the project stands.

Foundation only. It does not implement a complete live engagement pipeline or transmit filings. Source fixtures are illustrative; no client data is presented here.

Related by purpose

A useful place
in a bigger picture.

These assets share a workflow or engineering concern. Explore their individual scope before planning a connection.

Something worth building?

Let’s give it the care, clarity, and craftsmanship it deserves.

Tell us what you have in mind

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