Pith Number

pith:YD7JGSHF

pith:2018:YD7JGSHFNXJD7JHKDUBGCNZC3B

not attested not anchored not stored refs pending

Model of Cognitive Dynamics Predicts Performance on Standardized Tests

Jacob Hunter, Kristina Lerman, Nathan O. Hodas, Stephen J. Young

arxiv:1809.02647 v1 · 2018-09-07 · 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{YD7JGSHFNXJD7JHKDUBGCNZC3B}

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	2026-05-18T00:06:15.704266Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c0fe9348e56dd23fa4ea1d02613722d86b828d496cc2885ccd6456842e01d321

Aliases

arxiv: 1809.02647 · arxiv_version: 1809.02647v1 · doi: 10.48550/arxiv.1809.02647 · pith_short_12: YD7JGSHFNXJD · pith_short_16: YD7JGSHFNXJD7JHK · pith_short_8: YD7JGSHF

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/YD7JGSHFNXJD7JHKDUBGCNZC3B \
  | 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: c0fe9348e56dd23fa4ea1d02613722d86b828d496cc2885ccd6456842e01d321

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ebf8b06d4a17d56f591429dc52bdf66b19f561bce05747cb8b6bff8bfd39ef7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2018-09-07T19:25:59Z",
    "title_canon_sha256": "51094a8680152672d59b279ae3423b3341cf44d9508a1043a3a84b312abc19f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.02647",
    "kind": "arxiv",
    "version": 1
  }
}