PSGC snapshot history

Quarterly Philippine Standard Geographic Code (PSGC) change history across 17 snapshots from 2021-08-19 to 2026-04-13, each processed into an RDF delta.

Author

Manuel Balmeo

This dataset tracks 17 quarterly PSGC snapshots. Each snapshot is processed into an RDF delta (delta.ttl / .nt / .jsonld) capturing creation, deletion, transfer, merger, split, renaming, reclassification, and code-change events relative to the previous snapshot — see change-event types.

# Snapshot Notes
1 2021-08-19 Baseline
2 2022-04-29 Largest delta of the series
3 2022-11-08
4 2023-04-18
5 2023-08-15 2Q 2023
6 2023-10-24 First fully enriched release (3Q 2023) — GeoJSON bundles published
7 2024-01-23 No change in 4Q 2023
8 2024-04-23
9 2024-05-08 Eight new municipalities in BARMM
10 2024-07-12 June 2024 PSGC
11 2024-10-18 3Q 2024
12 2025-01-30
13 2025-04-23 1Q 2025
14 2025-08-29 July 2025 PSGC
15 2025-10-13 3Q 2025
16 2026-01-13 4Q 2025
17 2026-04-13 1Q 2026

Reading the deltas

Each snapshot directory in the repository contains delta.ttl (Turtle), delta.nt (N-Triples), and delta.jsonld (JSON-LD), plus the source PSA press release as Markdown. The RDF uses the W3C ORG ontology with PROV provenance and Dublin Core terms.

For dataset and documentation versions (release tags), see the Changelog; for the version-tag convention see Releases & versioning.