Pith Number

pith:7XIY67RE

pith:2017:7XIY67RE26N6NE5AO3XXZGDXAQ

not attested not anchored not stored refs pending

MOOCs and Crowdsourcing: Massive Courses and Massive Resources

Araz Taeihagh, James Melton, John Prpic, Terry Anderson

arxiv:1702.05002 v1 · 2017-02-10 · cs.CY · cs.HC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7XIY67RE26N6NE5AO3XXZGDXAQ}

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	2026-05-18T00:15:37.866910Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fdd18f7e24d79be693a076ef7c9877040226699491178ea4b99d5977472e5fe2

Aliases

arxiv: 1702.05002 · arxiv_version: 1702.05002v1 · doi: 10.48550/arxiv.1702.05002 · pith_short_12: 7XIY67RE26N6 · pith_short_16: 7XIY67RE26N6NE5A · pith_short_8: 7XIY67RE

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/7XIY67RE26N6NE5AO3XXZGDXAQ \
  | 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: fdd18f7e24d79be693a076ef7c9877040226699491178ea4b99d5977472e5fe2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "863bacbd4b1408638f060787f3e2b77a4d610567945e44237f9569a777cb58b3",
    "cross_cats_sorted": [
      "cs.HC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2017-02-10T09:43:13Z",
    "title_canon_sha256": "3825d135fd16ace1a4c301b73b17d2b06ed24d455ce0537757bdca170122ce71"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.05002",
    "kind": "arxiv",
    "version": 1
  }
}