Pith Number

pith:KEHN2QBR

pith:2018:KEHN2QBRT7CAH4E4KQRPQOEIPN

not attested not anchored not stored refs pending

Evaluating Predictive Models of Student Success: Closing the Methodological Gap

Christopher Brooks, Josh Gardner

arxiv:1801.08494 v2 · 2018-01-19 · stat.AP · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KEHN2QBRT7CAH4E4KQRPQOEIPN}

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	2026-05-18T00:13:17.382076Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

510edd40319fc403f09c5422f838887b4bad0936e5f04365303adc6003fe18fc

Aliases

arxiv: 1801.08494 · arxiv_version: 1801.08494v2 · doi: 10.48550/arxiv.1801.08494 · pith_short_12: KEHN2QBRT7CA · pith_short_16: KEHN2QBRT7CAH4E4 · pith_short_8: KEHN2QBR

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/KEHN2QBRT7CAH4E4KQRPQOEIPN \
  | 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: 510edd40319fc403f09c5422f838887b4bad0936e5f04365303adc6003fe18fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc32d4fc37d34e28e7436171961060c4991f2570a65a5a134539e9e458c12354",
    "cross_cats_sorted": [
      "cs.CY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2018-01-19T14:02:08Z",
    "title_canon_sha256": "deb68aaec8331466d95482ae6df9a9392b03b98005e75dfeb491877422c57e03"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.08494",
    "kind": "arxiv",
    "version": 2
  }
}