Pith Number

pith:7LOALXRB

pith:2018:7LOALXRBNRIG27QVZJNZSLDHAX

not attested not anchored not stored refs pending

MORF: A Framework for Predictive Modeling and Replication At Scale With Privacy-Restricted MOOC Data

Christopher Brooks, Josh Gardner, Juan Miguel L. Andres, Ryan Baker

arxiv:1801.05236 v3 · 2018-01-16 · cs.SE · cs.CY · cs.LG · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7LOALXRBNRIG27QVZJNZSLDHAX}

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	2026-05-18T00:07:32.837972Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fadc05de216c506d7e15ca5b992c6705f585f7d79f23c03e6a663401d08ccad6

Aliases

arxiv: 1801.05236 · arxiv_version: 1801.05236v3 · doi: 10.48550/arxiv.1801.05236 · pith_short_12: 7LOALXRBNRIG · pith_short_16: 7LOALXRBNRIG27QV · pith_short_8: 7LOALXRB

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/7LOALXRBNRIG27QVZJNZSLDHAX \
  | 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: fadc05de216c506d7e15ca5b992c6705f585f7d79f23c03e6a663401d08ccad6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c462a4047cd669f6d5285569e9bfa0e81c3507352b61a93166c932e06e14ebb8",
    "cross_cats_sorted": [
      "cs.CY",
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2018-01-16T13:06:12Z",
    "title_canon_sha256": "15033382d73b397f3a64ab916e4604e1c241eedc5a2c852c4010230d75932847"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.05236",
    "kind": "arxiv",
    "version": 3
  }
}