Pith Number

pith:OEMUN4IG

pith:2013:OEMUN4IG4PBSTVYXLHAVLO4EEX

not attested not anchored not stored refs pending

From F=ma to Flying Squirrels: Curricular Change in an Introductory Physics Course

Brian W. O'Shea, Laura Terry, Walter Benenson

arxiv:1305.1398 v1 · 2013-05-07 · physics.ed-ph · physics.soc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OEMUN4IG4PBSTVYXLHAVLO4EEX}

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	2026-05-18T03:26:21.846173Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

711946f106e3c329d71759c155bb8425e61d96bbaf922fe5ec1f739150b8a96f

Aliases

arxiv: 1305.1398 · arxiv_version: 1305.1398v1 · doi: 10.48550/arxiv.1305.1398 · pith_short_12: OEMUN4IG4PBS · pith_short_16: OEMUN4IG4PBSTVYX · pith_short_8: OEMUN4IG

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/OEMUN4IG4PBSTVYXLHAVLO4EEX \
  | 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: 711946f106e3c329d71759c155bb8425e61d96bbaf922fe5ec1f739150b8a96f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "684bab8c060e019460a7c03828a0c57ab59d7ec96a4e7e69a703b22d8e8311cc",
    "cross_cats_sorted": [
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2013-05-07T04:19:16Z",
    "title_canon_sha256": "d255086bf6c53bdb4d91c8b98e9d879edbd0954a6c5406b2c13b759b31bf18ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.1398",
    "kind": "arxiv",
    "version": 1
  }
}