Pith Number

pith:ZCJXJKIY

pith:2019:ZCJXJKIY7TLLVZNM3K57ATS6PZ

not attested not anchored not stored refs pending

A survival model for course-course interactions in a Massive Open Online Course platform

Ariel B. Lindner, Edwin H. Wintermute, Matthieu Cisel

arxiv:1905.04201 v1 · 2019-05-10 · cs.CY · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZCJXJKIY7TLLVZNM3K57ATS6PZ}

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.

Receipt and verification

First computed	2026-05-17T23:46:31.758865Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c89374a918fcd6bae5acdabbf04e5e7e74b99a43082ad04dbed0a850cf197645

Aliases

arxiv: 1905.04201 · arxiv_version: 1905.04201v1 · doi: 10.48550/arxiv.1905.04201 · pith_short_12: ZCJXJKIY7TLL · pith_short_16: ZCJXJKIY7TLLVZNM · pith_short_8: ZCJXJKIY

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/ZCJXJKIY7TLLVZNM3K57ATS6PZ \
  | 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: c89374a918fcd6bae5acdabbf04e5e7e74b99a43082ad04dbed0a850cf197645

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a093d9beed5e724edb3c8c35fab75ea5fa4f4d05aa62af10121cd92f03745ab",
    "cross_cats_sorted": [
      "stat.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2019-05-10T14:53:31Z",
    "title_canon_sha256": "2174b156f630888d5a3bbe51f50f29e052290a054b4a054c9855110aa02ee5bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.04201",
    "kind": "arxiv",
    "version": 1
  }
}