Pith Number

pith:PZDYM4GE

pith:2025:PZDYM4GE2N4GG2WTMM5734YWI7

not attested not anchored not stored refs pending

An Ontology for Representing Curriculum and Learning Material

Antrea Christou, Chris Davis Jaldi, Cogan Shimizu, Hande K\"u\c{c}\"uk McGinty, Joseph Zalewski, Pascal Hitzler

arxiv:2506.05751 v1 · 2025-06-06 · cs.CY · cs.AI

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PZDYM4GE2N4GG2WTMM5734YWI7}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Cited by

1 paper in Pith

Measuring Curriculum Alignment across Topical Coverage, Competency, and Cognitive Depth: A Longitudinal Framework Applied to CS2013 and CS2023

Receipt and verification

First computed	2026-07-05T11:17:09.067983Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e478670c4d378636ad3633bfdf31647fa18d240cad88a13f6ffb2ef31245f95

Aliases

arxiv: 2506.05751 · arxiv_version: 2506.05751v1 · doi: 10.48550/arxiv.2506.05751 · pith_short_12: PZDYM4GE2N4G · pith_short_16: PZDYM4GE2N4GG2WT · pith_short_8: PZDYM4GE

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/PZDYM4GE2N4GG2WTMM5734YWI7 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 7e478670c4d378636ad3633bfdf31647fa18d240cad88a13f6ffb2ef31245f95

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8eae1a807bbe170f156fc3ef2a84a7e169d230970195bfe7cb8cb73ce9535715",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2025-06-06T05:21:05Z",
    "title_canon_sha256": "6fd892678890bfb706f66a005608624d4d04f7d6de40066fb0659b4bb3f1e0f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.05751",
    "kind": "arxiv",
    "version": 1
  }
}