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PointSav Documentation

The engineering library for the PointSav platform — operating systems and services for regulated businesses that own their data, their AI, and their record-keeping outright. Where the monorepo holds the code, this wiki holds the reasoning: architecture, services, security, and the governance commitments that bind future development.

PointSav Digital Systems

Doctrine invention #7 — the integrity anchor

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f754176e · PointSav Digital Systems ·

docs(documentation): fix 147 broken wikilinks -- console-os/os-totebox word-order typos (71 occurrences), path-style syntax errors, stray topic- prefixes, PPN/os-console/service-fs/GIS alias-consolidation retargets (57 occurrences), plus 14 links converted to plain text or proper category links where no wikilink target applies (2 flagged as genuine content gaps: app-mediakit-shell has no article; mount is TOML syntax, not a slug)

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@@ -13,7 +13,7 @@ category: governance
status: active
quality: complete
index_group: platform-disciplines
last_edited: 2026-07-11
last_edited: 2026-08-24
---

Doctrine §III.7 defines the Integrity Anchor pattern: a monthly operation that bundles the workspace state hash, manifest hashes, and ledger hash, then posts the result to Sigstore Rekor — a public, append-only transparency log. The result is independently verifiable: anyone can confirm that this state existed at this time, under this identity, without trusting Foundry's own infrastructure.
@@ -91,7 +91,7 @@ Old shard entries remain readable for an extended period after rotation. Histori

The anchor-emitter binary (`fs-anchor-emitter`) executes four steps in sequence:

1. **Checkpoint fetch** — `GET /v1/checkpoint` from [[service-fs-architecture|service-fs]], with `X-Foundry-Module-ID` header set to `FS_MODULE_ID`. Returns the signed checkpoint JSON. Exit 2 on failure.
1. **Checkpoint fetch** — `GET /v1/checkpoint` from [[service-fs|service-fs]], with `X-Foundry-Module-ID` header set to `FS_MODULE_ID`. Returns the signed checkpoint JSON. Exit 2 on failure.

2. **Hashedrekord construction** — SHA-256 digest of the checkpoint JSON computed in-process; ephemeral Ed25519 keypair generated via OS RNG; checkpoint bytes signed; SPKI DER of the verifying key encoded. The `hashedRekordRequestV002` JSON body is assembled.
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