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Evidence · journal

Building ICU’s Versioned Download Release System

A first-party software project journal documenting how O026 turned existing ICU materials into versioned, hash-verified public bundles while keeping a prepared private original outside PUBLIC.

First-party ICU recordSoftware evidenceNo member submission12 min read
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Goal

Create a deterministic download/template release system whose published files have exact manifests and whose future protected originals do not leak into the public artifact.

Materials & setup

  • Validated O025 descendant · software checkpoint
  • O026 deterministic release compiler · source code
  • O026 packaged browser and state validation · software qa

Dated record

2026-09-08

Generated two versioned public download releases from ICU-owned source material and recorded file-level metadata plus immutable bundle hashes.

The release registry contains 2 public releases with 10 constituent files total.

Evidence records
  • public/data/downloads/current.json
  • evidence/universe/o026/DOWNLOAD_LIBRARY_EVIDENCE.json

2026-09-08

Validated the private-delivery boundary by comparing the prepared protected source against every PUBLIC file.

O026 records 0 protected originals in PUBLIC and 1 prepared private record.

Evidence records
  • evidence/universe/o026/O026_VALIDATION.json
  • download-library/private-release-registry.json

2026-09-08

Rendered and inspected the generated printable PDFs and ran the dedicated download/browser/state suites.

9 PDF pages were rendered for QA; the frozen validation report records 1078 passed assertions and 0 failures.

Evidence records
  • evidence/universe/o026/O026_VALIDATION.json

2026-09-08

Regenerated the public tree and compared every path and byte stream.

1684 of 1684 public files were byte-identical; changed files: 0.

Evidence records
  • evidence/universe/o026/O026_REPRODUCIBILITY.json

Observations

  • O026 published 2 download resources and 2 bundles.
  • The O026 public artifact contained 1684 files and the rerun was byte-identical.
  • The prepared future protected-delivery fixture remained private; O026 did not activate payments, entitlements, or a provider.

Result

The packaged O026 descendant met the release-integrity and private-boundary goals under its local/static validation scope.

MeasureRecorded value
Public Download Resources2
Published Bundles2
Constituent Files10
Public Files1684
Protected Originals In Public0
Passed Assertions1078

Limitations

  • This journal documents packaged software/build evidence, not a live user study or physical trial.
  • No elapsed implementation time is claimed because a trustworthy task-duration measurement was not recorded.
  • O026 was not observed deployed to production; production remained at the previously observed O018 revision.
  • Payments, entitlements, protected delivery, and provider-backed access remained inactive.

Evidence boundary

This is a first-party ICU editorial record built from retained project evidence. It is not a member testimonial, user outcome, physical trial, or community submission. Future community claims will remain attributed and unverified by default unless their own evidence is reviewed.

How ICU separates first-party evidence from future community contributions →

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